CN105188104B - A kind of implementation method of wireless communication - Google Patents
A kind of implementation method of wireless communication Download PDFInfo
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- CN105188104B CN105188104B CN201510564536.0A CN201510564536A CN105188104B CN 105188104 B CN105188104 B CN 105188104B CN 201510564536 A CN201510564536 A CN 201510564536A CN 105188104 B CN105188104 B CN 105188104B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of implementation method of wireless communication, the wireless network is divided into more than two subnets, and each subnet includes a couple in router and more than two mobile nodes, and subnet is connected by couple in router with internet.Three classes node is included in the subnet：Data provide node, data consumption node and ordinary node, it is to have permission to provide a kind of mobile node of specific type of data that wherein data, which provide node, data consumption node is to have permission to consume a kind of mobile node of specific type of data, ordinary node is neither data provide node nor the mobile node of data consumption node, for performing route forwarding function.The wireless network can obtain network data by implementation method provided by the present invention, while keep the continuity of communication, shorten data acquisition cost and delay, present invention can apply to the fields such as road conditions monitoring, vehicle management, are with a wide range of applications.
Description
Technical field
The present invention relates to a kind of computer internet field of communication technology more particularly to a kind of wireless communications
Implementation method.
Background technology
Wireless network can realize the multi-hop wireless communication between node and node as a kind of Novel Communication network.With
The continuous development of radio network technique and continuing to bring out for various new opplications, there is an urgent need to wireless networks to have access to interconnection
Net is to meet the application demand of user's sharp increase.
Wireless network has the characteristics that movement speed is fast, number of nodes is more.Internet (hereinafter referred to as IPv6 based on IPv6
Network) have many advantages, such as that mobility support, address resource are abundant.Therefore, wireless network access IPv6 networks, which become, meets user
The ideal solution of application demand.
Current researcher proposes the mould that wireless network obtains network service by accessing the internet based on IPv6
Formula simultaneously defines corresponding protocol stack, but the architecture due to wireless network is different from IPv6 networks, existing access side
Method has some limitations.Therefore it needs to propose a kind of Realization Method of Communication of wireless network, so as to reduce data obtaining time,
It improves service quality.
Invention content
Goal of the invention：The technical problems to be solved by the invention are in view of the deficiencies of the prior art, to provide a kind of wireless network
The implementation method of network communication.
Technical solution：The invention discloses a kind of implementation methods of wireless communication, which is characterized in that the wireless network
Network is divided into more than two subnets, and each subnet includes a couple in router and more than two mobile nodes, subnet lead to
Couple in router is crossed with internet to be connected；
Three classes node is included in the subnet：Data provide node, data consumption node and ordinary node, wherein data
It is to have permission the mobile node for providing a kind of specific type of data (for example, film) to provide node, and data consumption node is has the right
Limit consumes a kind of mobile node of specific type of data, and ordinary node is neither data provide node nor data consumption section
The mobile node of point, for performing route forwarding function；
The wireless network includes a kind of anycast address of certain types of data of unique mark, and all have permission provides this
The data of kind specific type of data provide node and form an anycast group, which is as marked by anycast address unique mark
Know the anycast address of this kind of specific type of data；Node in anycast group is known as Anycast group membership；
It is all have permission consume a kind of specific type of data data consumption node form a multicast group, the multicast group by
One multicast address unique mark；Node in multicast group is known as multicast members；
The unicast address of one mobile node route for global, is made of two parts：First part is network prefix, long
It spends for 128-i bits, for example, i could be provided as 64 bits or 32 bits, one subnet of network prefix unique mark, one
The network prefix of the unicast address of all mobile nodes in subnet is all identical, and value is equal to the couple in router in identical subnet
Network prefix；Second part is node ID, and length is i bits, which has uniqueness, unique mark one in subnet
A mobile node；The allocation space of node ID is [1,2j], j<i；
One anycast address is made of two parts：Network prefix and Anycast ID, the length of network prefix is 128-i bits,
The length of Anycast ID is i bits, and anycast address has network uniqueness；The allocation space of Anycast ID is [2j+1,2i-1]；
A kind of certain types of data divide K part, the label of k-th of partial content be：Anycast address k；K belongs to 1
~K；For example, a TV play has K collection, k-th of partial content identifies the kth collection of a TV play；
One data address is for obtaining a kind of certain types of data, including three parts：First part is for unicast
Node ID in location, second part are the Anycast ID in anycast address, and Part III is partial set, and value is requested data
Part value；Partial set can be 1,2 equivalent, if the value is 0, illustrate the data asked for complete data, example
Such as entire TV series；
One multicast members preserves a data routing table, for recording the anycast members letter for providing the multicast group data
Breath；One data route table items records the information of an Anycast group membership, and a data route table items are divided into four domains：Unicast
The unicast address of location domain, anycast address domain, part domain and distance domain, wherein unicast address domain for Anycast group membership, anycast address
The anycast address that thresholding is had the right for multicast group corresponding to the type of acquisition data, the corresponding part number of part thresholding mark data,
For example, part thresholding can be expressed as the 1st collection of a TV series when being 1；Appoint apart from domain representation multicast members distance
Broadcast the hop count of group membership；One subnet includes more than one multicast group, and the couple in router of the subnet is defaulted as being in the subnet
The group membership of each multicast group.
The above process constructs the basic architecture that network obtains data, and by above-mentioned network architecture, data disappear
Node acquisition data can be provided from closest data by taking node, so as to which the cost of data acquisition be greatly lowered and prolong
Late.
It is A1 in the anycast address of Anycast group membership P1, the multicast that multicast address is M1 forms in the method for the invention
In the case that member has permission the data that acquisition multicast address A1 is defined；Anycast group membership P1 produces that anycast address A1 is defined
It is proceeded as follows after k partial data：
Step 101：Start；
Step 102：Anycast group membership P1 sends a data sharing message, and the destination address of data sharing message is multicast
Address M1, source address are the unicast address of Anycast group membership P1, and the load of data sharing message is k and anycast address A1；
Step 103：Multicast address is after the multicast members of M1 receive data sharing message, in the data routing table of oneself
One list item of middle increase, the unicast address domain of list item are the unicast address of Anycast group membership P1, and anycast address domain is A1, part domain
It is worth for k, distance of the distance domain for the multicast members and Anycast group membership P1；
Step 104：Terminate.
The above process constructs the data routing table for reaching Anycast group membership, passes through above-mentioned data routing table, data consumption
Node can provide node from closest data and obtain data, so as to which the cost of data acquisition and delay be greatly lowered.
In the method for the invention, had permission in the multicast members that multicast address is M1 and obtain anycast address A1 marks
In the case of data, if multicast members C3 is located in subnet N1, and the network prefix of anycast address A1 is under the jurisdiction of N1, multicast
Address is that the multicast members C3 of M1 will obtain the kth partial data of anycast address A1 marks, then performs following processes：
Step 201：Start；
Step 202：Multicast members C3 checks the data routing table of oneself, and chosen distance oneself is nearest and can provide Anycast
The Anycast group membership P2 of the kth partial data of address A1 marks builds a data address, and the node ID of data address is Anycast
The node ID of group membership P2, Anycast ID are the corresponding Anycast ID of anycast address A1, and partial set value is k；Multicast members C3 to
Anycast group membership's P2 transmission data request messages, the destination address of data request information is data address, data request information
Source address is the unicast address of multicast members C3；
Step 203：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is to receive the node oneself of data request information
Unicast address, destination address is the unicast address of multicast members C3, and the load of data response message is anycast address A1 marks
The kth partial data of knowledge carries out step 205；
Situation 2：If the node for receiving data request information is Anycast group membership P2, step 204 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 203；
Step 204：Anycast group membership P2 returns to a data response message to multicast members C3, data response message
Source address is the unicast address of Anycast group membership P2, and destination address is the unicast address of multicast members C3, is loaded for Anycast
The kth partial data of location A1 marks；
Step 205：If the node for receiving data response message is the multicast members in multicast address M1, and this is more
Broadcast the kth partial data that group membership also wants to obtain simultaneously anycast address A1 marks, then the multicast members directly preserve data
The kth partial data of anycast address A1 marks in response message, final data response message reach multicast members C3；
Step 206：Terminate.
By the above process, data consumption node can provide node from closest data and obtain number in local network
According to so as to which the cost of data acquisition and delay be greatly lowered.
In the method for the invention, multicast address is that the multicast members of M1 have permission the number for obtaining anycast address A1 marks
According to multicast members C3 is located in subnet N1, and the couple in router in subnet N1 is AR1, and the network prefix of anycast address A1 is subordinate to
Belong to N1, multicast address is that the multicast members C3 of M1 obtains the kth part number of anycast address A1 marks from Anycast group membership P2
The data request information that Anycast group membership P2 is sent to according to, multicast members C3 reaches the previous hop node E1 of Anycast group membership P2
Afterwards, if previous hop node E1 detects that Anycast group membership P2 is unreachable, then multicast members C3 is obtained from excessively following processes
The kth partial data of anycast address A1 marks：
Step 301：Start；
Step 302：Node ID in the destination address of the data request information received is revised as by previous hop node E1
The node ID of couple in router AR1, then transmission data request message；
Step 303：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is to receive the node oneself of data request information
Unicast address, destination address be multicast members C3 unicast address, load the kth part number identified for anycast address A1
According to progress step 307；
Situation 2：If the node for receiving data request information is couple in router AR1, step 304 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 303；
Step 304：Couple in router AR1 chosen distances oneself are nearest and can provide the anycast address A1 kth parts of mark
The node ID of the destination address of the data request information received is updated to Anycast group membership P3 by the Anycast group membership P3 of data
Node ID, then send the data request information；
Step 305：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is the list for the node for receiving data request information
Address is broadcast, destination address is the unicast address of multicast members C3, loads the kth partial data identified for anycast address A1, into
Row step 307；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 306 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 305；
Step 306：Anycast group membership P3 returns to a data response message to multicast members C3, data response message
Source address is its unicast address, and destination address is the unicast address of multicast members C3, loads what is identified for anycast address A1
Kth partial data；
Step 307：If receive the node of data response message as the multicast members in multicast address M1 while
Want to obtain the kth partial data that anycast address A1 is identified, then the node for receiving data response message directly preserves data sound
The kth partial data that the anycast address A1 in message is answered to identify, final data response message reach multicast members C3；
Step 308：Terminate.
If data consumption node can not obtain data from node is provided apart from newest data, then it can be from local
Other data of network provide node and obtain data, so as to increase considerably the success rate for obtaining data.
In the method for the invention, multicast address is that the multicast members of M1 have permission the number for obtaining anycast address A1 marks
According to if multicast members C3 is located in subnet N1, the couple in router of subnet N1 is AR1, the network prefix of anycast address A2
It is under the jurisdiction of N2, if multicast address, which is the multicast members C3 of M1, will obtain the kth partial data of anycast address A2 marks, then
Multicast members C3 first looks at data routing table, the list item that if there is Anycast ID be A2 and part thresholding is k, then multicast
Group membership C3 is obtained by way of performing and obtaining the kth partial data of anycast address A1 marks in step 201 to step 205
The kth partial data of anycast address A2 marks, otherwise multicast members C3 perform following processes and obtain data：
Step 401：Start；
Step 402：Multicast members C3 sends teledata request message, and the destination address of teledata request message is
Anycast address A2, source address are the unicast address of multicast members C3, are loaded as k；
Step 403：The node for receiving data request information is divided into the teledata request that three kinds of situation processing receive
Message：
Situation 1：If the node for receiving teledata request message is the multicast members of multicast address M1 and has
The kth partial data of anycast address A2 marks, then the node for receiving teledata request message returns to a teledata
Response message simultaneously stops forwarding the teledata request message received, and the source address of teledata response message is its unicast
Address, destination address are the unicast address of multicast members C3, load the kth partial data identified for anycast address A2, are carried out
Step 410；
Situation 2：If the node for receiving teledata request message is couple in router AR1, step 404 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, receiving the node of teledata request message will remotely count
Next-hop is forwarded to according to request message, carries out step 403；
Step 404：The teledata request message received is sent to internet by couple in router AR1, finally, remotely
Data request information reaches couple in router AR2；
Step 405：Couple in router AR2 checks the data routing table of oneself, and chosen distance oneself recently and can provide times
Broadcasting the Anycast group membership P3 of the kth partial data of address A2 marks, couple in router AR2 builds a data address, data
The node ID of location is the node ID of Anycast group membership P3, and Anycast ID is the Anycast ID of anycast address A2, and partial set value is k, is connect
Enter router AR2 to Anycast group membership's P3 transmission data request messages, the destination address of data request information is data address, source
Address is the unicast address of couple in router AR2；
Step 406：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A2 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is its unicast address, and destination address is access
The unicast address of router AR2 loads the kth partial data identified for anycast address A2, carries out step 408；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 407 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step:406；
Step 407：Anycast group membership P3 returns to a data response message, data response message to couple in router AR2
Source address for its unicast address, destination address is the unicast address of couple in router AR2, loads and is identified for anycast address A2
Kth partial data；
Step 408：If the node for receiving data response message is the multicast members in multicast address M1, the multicast
Group membership also wants to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve data sound
The kth partial data that the anycast address A2 in message is answered to identify, final data response message reach couple in router AR2；
Step 409：Couple in router AR2 returns to a teledata response message, the purpose of teledata response message
Address is the unicast address of multicast members C3, loads the kth partial data identified for anycast address A2；
Step 410：If the node for receiving teledata response message is the multicast members in multicast address M1, should
Multicast members also want to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve number
According to the kth partial data that the anycast address A2 in response message is identified, final teledata response message reaches multicast members
C3；
Step 411：Terminate.
If data consumption node can not obtain data from local network, then it can be carried by the data of other networks
Data are remotely obtained for node, so as to increase considerably the success rate for obtaining data.
In the method for the invention, each Anycast group membership periodically sends update to the couple in router of place network and disappears
Breath, the source address of new information are the unicast address of Anycast group membership, are loaded as the anycast address of place anycast group and institute's energy
The data portion score value k of offer；
If in the given time, such as 10 minutes, couple in router does not receive the new information of Anycast group membership, then
The corresponding list item of Anycast group membership is deleted from data routing table, then couple in router is to having the right with obtaining the Anycast
The multicast members of data defined in location send a deletion message, with deleting the multicast of the destination address of message for multicast group
Location loads the unicast address for Anycast group membership；After multicast members receive deletion message, the data routing of oneself is checked
Table deletes unicast address thresholding and is equal to the route table items for deleting the unicast address in message；
The anycast address of Anycast group membership is A1, after Anycast group membership is moved to a new subnet, to new subnet
Couple in router sends new information, and receive the couple in router of new information increases this in the data routing table of oneself
The list item of group membership is broadcast, while an increase is sent to the multicast members for having the right to obtain data defined in anycast address A1
Message, the destination address for increasing message is the multicast address of the multicast group, loads the unicast address for Anycast group membership, Anycast
Address and the data portion score value k that can be provided；Multicast members are received after increasing message, increase this in data routing table
Broadcast the route table items of group membership.
The above process ensures the correctness of data routing table, even if data provide node from a Network Mobility in addition
One network, data consumption node is appointed can so search closest data offer node by data routing table, thus from
Closest data provide node and obtain data, so as to increase considerably the success rate for obtaining data, also reduce acquisition
The cost of data and delay.
Advantageous effect：The present invention provides a kind of implementation method of wireless communication, the wireless network passes through this hair
Bright provided implementation method can obtain network data, while keep the continuity of communication, shorten data acquisition cost and delay,
Present invention can apply to the fields such as road conditions monitoring, vehicle management, are with a wide range of applications.
Description of the drawings
The present invention is done with reference to the accompanying drawings and detailed description and is further illustrated, of the invention is above-mentioned
And/or otherwise advantage will become apparent.
Fig. 1 is wireless network architecture schematic diagram of the present invention.
Fig. 2 is unicast address structure diagram of the present invention.
Fig. 3 is anycast address structure diagram of the present invention.
Fig. 4 is data address structure diagram of the present invention.
Fig. 5 is data routing table table entry structure schematic diagram of the present invention.
Fig. 6 route flow diagram for of the present invention create.
Fig. 7 is obtains data flow diagram in subnet of the present invention.
Data flow diagram is obtained in subnet when Fig. 8 provides node failure for optimal data of the present invention.
Fig. 9 obtains data flow diagram between subnet of the present invention.
Specific embodiment：
The present invention provides a kind of implementation method of wireless communication, the wireless network passes through provided by the present invention
Implementation method can obtain network data, while keep the continuity of communication, and shortening data acquisition cost and delay, the present invention can answer
For fields such as road conditions monitoring, vehicle managements, it is with a wide range of applications.
Fig. 1 is wireless network architecture schematic diagram of the present invention.The wireless network is divided into more than two
Subnet 1, each subnet 1 include a couple in router 2 and more than two mobile nodes, subnet 1 by couple in router 2 with
Internet is connected；
Three classes node is included in the subnet：Data provide node 3, data consumption node 4 and ordinary node 5, wherein
It is to have permission the mobile node for providing a kind of specific type of data (for example, film), data consumption node 4 that data, which provide node 3,
Consume a kind of mobile node of specific type of data to have permission, ordinary node 5 for neither data node is provided nor number
According to the mobile node of consumption node, for performing route forwarding function；
The wireless network includes a kind of anycast address of certain types of data of unique mark, and all have permission provides this
The data of kind specific type of data provide node 3 and form an anycast group, which is as marked by anycast address unique mark
Know the anycast address of this kind of specific type of data；Node in anycast group is known as Anycast group membership；
It is all to have permission one multicast group of composition of data consumption node 4 for consuming a kind of specific type of data, the multicast group
By a multicast address unique mark；Node in multicast group is known as multicast members.
Fig. 2 is unicast address structure diagram of the present invention.The unicast address of one mobile node is used for global road
By being made of two parts：First part is network prefix, and length is 128-i bits, for example, i could be provided as 64 bits, net
One subnet of network prefix unique mark, the network prefix of the unicast address of all mobile nodes in a subnet is all identical,
Value is equal to the network prefix of the couple in router in identical subnet；Second part is node ID, and length is i bits, the node ID
There is uniqueness, one mobile node of unique mark in subnet；The allocation space of node ID is [1,2j], j<i.
Fig. 3 is anycast address structure diagram of the present invention.One anycast address is made of two parts：Network prefix
With Anycast ID, the length of network prefix is 128-i bits, and the length of Anycast ID is i bits, and anycast address is unique with network
Property；The allocation space of Anycast ID is [2j+1,2i-1].A kind of certain types of data divide K part, k-th partial content
It is labeled as：Anycast address k；K belongs to 1~K；For example, a TV play has K collection, k-th of partial content one TV play of mark
Kth collection.
Fig. 4 is data address structure diagram of the present invention.One data address is used to obtain a kind of specific type
Data, including three parts：First part is the node ID in unicast address, and second part is the Anycast in anycast address
ID, Part III are partial set, and value is the value of the part of requested data；Partial set can be 1,2 equivalent, if should
It is 0 to be worth, then illustrates the data asked for complete data, such as entire TV series.
Fig. 5 is data routing table table entry structure schematic diagram of the present invention.One multicast members preserves a data
Routing table, for recording the anycast members information for providing the multicast group data；One data route table items records an anycast group
The information of member, a data route table items are divided into four domains：Unicast address domain, anycast address domain, part domain and distance domain,
Middle unicast address domain is the unicast address of Anycast group membership, and the type that anycast address thresholding has the right to obtain data for multicast group is right
The anycast address answered, the corresponding part number of part thresholding mark data, for example, part thresholding can be expressed as an electricity when being 1
Depending on the 1st collection of serial；Apart from hop count of the domain representation multicast members apart from Anycast group membership；One subnet includes more than one
Multicast group, the couple in router of the subnet be defaulted as be each multicast group in the subnet group membership.
The above process constructs the basic architecture that network obtains data, and by above-mentioned network architecture, data disappear
Node acquisition data can be provided from closest data by taking node, so as to which the cost of data acquisition be greatly lowered and prolong
Late.
Fig. 6 route flow diagram for of the present invention create.Anycast group membership P1 anycast address for A1, multicast
Address is in the case that the multicast members of M1 have permission the data that acquisition multicast address A1 is defined；Anycast group membership P1 is produced
It is proceeded as follows after k-th of partial data that anycast address A1 is defined：
Step 101：Start；
Step 102：Anycast group membership P1 sends a data sharing message, and the destination address of data sharing message is multicast
Address M1, source address are the unicast address of Anycast group membership P1, and the load of data sharing message is k and anycast address A1；
Step 103：Multicast address is after the multicast members of M1 receive data sharing message, in the data routing table of oneself
One list item of middle increase, the unicast address domain of list item are the unicast address of Anycast group membership P1, and anycast address domain is A1, part domain
It is worth for k, distance of the distance domain for the multicast members and Anycast group membership P1；
Step 104：Terminate.
The above process constructs the data routing table for reaching Anycast group membership, passes through above-mentioned data routing table, data consumption
Node can provide node from closest data and obtain data, so as to which the cost of data acquisition and delay be greatly lowered.
Fig. 7 is obtains data flow diagram in subnet of the present invention.In the multicast members that multicast address is M1
In the case of having permission the data for obtaining anycast address A1 marks, if multicast members C3 is located in subnet N1, and Anycast
The network prefix of location A1 is under the jurisdiction of N1, and multicast address is that the multicast members C3 of M1 will obtain the kth portion of anycast address A1 marks
Divided data then performs following processes：
Step 201：Start；
Step 202：Multicast members C3 checks the data routing table of oneself, and chosen distance oneself is nearest and can provide Anycast
The Anycast group membership P2 of the kth partial data of address A1 marks builds a data address, and the node ID of data address is Anycast
The node ID of group membership P2, Anycast ID are the corresponding Anycast ID of anycast address A1, and partial set value is k；Multicast members C3 to
Anycast group membership's P2 transmission data request messages, the destination address of data request information is data address, data request information
Source address is the unicast address of multicast members C3；
Step 203：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is to receive the node oneself of data request information
Unicast address, destination address is the unicast address of multicast members C3, and the load of data response message is anycast address A1 marks
The kth partial data of knowledge carries out step 205；
Situation 2：If the node for receiving data request information is Anycast group membership P2, step 204 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 203；
Step 204：Anycast group membership P2 returns to a data response message to multicast members C3, data response message
Source address is the unicast address of Anycast group membership P2, and destination address is the unicast address of multicast members C3, is loaded for Anycast
The kth partial data of location A1 marks；
Step 205：If the node for receiving data response message is the multicast members in multicast address M1, and this is more
Broadcast the kth partial data that group membership also wants to obtain simultaneously anycast address A1 marks, then the multicast members directly preserve data
The kth partial data of anycast address A1 marks in response message, final data response message reach multicast members C3；
Step 206：Terminate.
By the above process, data consumption node can provide node from closest data and obtain number in local network
According to so as to which the cost of data acquisition and delay be greatly lowered.
Data flow diagram is obtained in subnet when Fig. 8 provides node failure for optimal data of the present invention.It is more
It broadcasts the multicast members that address is M1 and has permission the data for obtaining anycast address A1 marks, multicast members C3 is located at subnet N1
Interior, the couple in router in subnet N1 is AR1, and the network prefix of anycast address A1 is under the jurisdiction of N1, and multicast address is the multicast of M1
Group membership C3 obtains the kth partial data of anycast address A1 marks from Anycast group membership P2, and multicast members C3 is sent to Anycast
After the data request information of group membership P2 reaches the previous hop node E1 of Anycast group membership P2, if previous hop node E1 is detected
Anycast group membership P2 is unreachable, then multicast members C3 obtains the kth part number of anycast address A1 marks from excessively following processes
According to：
Step 301：Start；
Step 302：Node ID in the destination address of the data request information received is revised as by previous hop node E1
The node ID of couple in router AR1, then transmission data request message；
Step 303：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is to receive the node oneself of data request information
Unicast address, destination address be multicast members C3 unicast address, load the kth part number identified for anycast address A1
According to progress step 307；
Situation 2：If the node for receiving data request information is couple in router AR1, step 304 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 303；
Step 304：Couple in router AR1 chosen distances oneself are nearest and can provide the anycast address A1 kth parts of mark
The node ID of the destination address of the data request information received is updated to Anycast group membership P3 by the Anycast group membership P3 of data
Node ID, then send the data request information；
Step 305：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A1 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is the list for the node for receiving data request information
Address is broadcast, destination address is the unicast address of multicast members C3, loads the kth partial data identified for anycast address A1, into
Row step 307；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 306 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 305；
Step 306：Anycast group membership P3 returns to a data response message to multicast members C3, data response message
Source address is its unicast address, and destination address is the unicast address of multicast members C3, loads what is identified for anycast address A1
Kth partial data；
Step 307：If receive the node of data response message as the multicast members in multicast address M1 while
Want to obtain the kth partial data that anycast address A1 is identified, then the node for receiving data response message directly preserves data sound
The kth partial data that the anycast address A1 in message is answered to identify, final data response message reach multicast members C3；
Step 308：Terminate.
If data consumption node can not obtain data from node is provided apart from newest data, then it can be from local
Other data of network provide node and obtain data, so as to increase considerably the success rate for obtaining data.
Fig. 9 obtains data flow diagram between subnet of the present invention.Multicast address is that the multicast members of M1 have
The data of authority acquiring anycast address A1 marks, if multicast members C3 is located in subnet N1, the couple in router of subnet N1
For AR1, the network prefix of anycast address A2 is under the jurisdiction of N2, if multicast address be M1 multicast members C3 with obtaining Anycast
The kth partial data of location A2 marks, then multicast members C3 first looks at data routing table, if there is Anycast ID for A2 and
Part thresholding is the list item of k, then multicast members C3 obtains anycast address A1 marks by performing in step 201 to step 205
The mode of the kth partial data of knowledge obtains the kth partial data of anycast address A2 marks, under otherwise multicast members C3 is performed
It states process and obtains data：
Step 401：Start；
Step 402：Multicast members C3 sends teledata request message, and the destination address of teledata request message is
Anycast address A2, source address are the unicast address of multicast members C3, are loaded as k；
Step 403：The node for receiving data request information is divided into the teledata request that three kinds of situation processing receive
Message：
Situation 1：If the node for receiving teledata request message is the multicast members of multicast address M1 and has
The kth partial data of anycast address A2 marks, then the node for receiving teledata request message returns to a teledata
Response message simultaneously stops forwarding the teledata request message received, and the source address of teledata response message is its unicast
Address, destination address are the unicast address of multicast members C3, load the kth partial data identified for anycast address A2, are carried out
Step 410；
Situation 2：If the node for receiving teledata request message is couple in router AR1, step 404 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, receiving the node of teledata request message will remotely count
Next-hop is forwarded to according to request message, carries out step 403；
Step 404：The teledata request message received is sent to internet by couple in router AR1, finally, remotely
Data request information reaches couple in router AR2；
Step 405：Couple in router AR2 checks the data routing table of oneself, and chosen distance oneself recently and can provide times
Broadcasting the Anycast group membership P3 of the kth partial data of address A2 marks, couple in router AR2 builds a data address, data
The node ID of location is the node ID of Anycast group membership P3, and Anycast ID is the Anycast ID of anycast address A2, and partial set value is k, is connect
Enter router AR2 to Anycast group membership's P3 transmission data request messages, the destination address of data request information is data address, source
Address is the unicast address of couple in router AR2；
Step 406：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A2 marks, then the node for receiving data request information returns to a data response message and stops
The data request information that rotation stop hair receives, the source address of data response message is its unicast address, and destination address is access
The unicast address of router AR2 loads the kth partial data identified for anycast address A2, carries out step 408；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 407 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information disappears request of data
Breath is forwarded to next-hop, carries out step 406；
Step 407：Anycast group membership P3 returns to a data response message, data response message to couple in router AR2
Source address for its unicast address, destination address is the unicast address of couple in router AR2, loads and is identified for anycast address A2
Kth partial data；
Step 408：If the node for receiving data response message is the multicast members in multicast address M1, the multicast
Group membership also wants to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve data sound
The kth partial data that the anycast address A2 in message is answered to identify, final data response message reach couple in router AR2；
Step 409：Couple in router AR2 returns to a teledata response message, the purpose of teledata response message
Address is the unicast address of multicast members C3, loads the kth partial data identified for anycast address A2；
Step 410：If the node for receiving teledata response message is the multicast members in multicast address M1, should
Multicast members also want to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve number
According to the kth partial data that the anycast address A2 in response message is identified, final teledata response message reaches multicast members
C3；
Step 411：Terminate.
If data consumption node can not obtain data from local network, then it can be carried by the data of other networks
Data are remotely obtained for node, so as to increase considerably the success rate for obtaining data.
Each Anycast group membership periodically sends new information, the source address of new information to the couple in router of place network
For the unicast address of Anycast group membership, the anycast address for place anycast group and the data portion score value k that can be provided are loaded；
If in the given time, such as 10 minutes, couple in router does not receive the new information of Anycast group membership, then
The corresponding list item of Anycast group membership is deleted from data routing table, then couple in router is to having the right with obtaining the Anycast
The multicast members of data defined in location send a deletion message, with deleting the multicast of the destination address of message for multicast group
Location loads the unicast address for Anycast group membership；After multicast members receive deletion message, the data routing of oneself is checked
Table deletes unicast address thresholding and is equal to the route table items for deleting the unicast address in message；
The anycast address of Anycast group membership is A1, after Anycast group membership is moved to a new subnet, to new subnet
Couple in router sends new information, and receive the couple in router of new information increases this in the data routing table of oneself
The list item of group membership is broadcast, while an increase is sent to the multicast members for having the right to obtain data defined in anycast address A1
Message, the destination address for increasing message is the multicast address of the multicast group, loads the unicast address for Anycast group membership, Anycast
Address and the data portion score value k that can be provided；Multicast members are received after increasing message, increase this in data routing table
Broadcast the route table items of group membership.
The above process ensures the correctness of data routing table, even if data provide node from a Network Mobility in addition
One network, data consumption node is appointed can so search closest data offer node by data routing table, thus from
Closest data provide node and obtain data, so as to increase considerably the success rate for obtaining data, also reduce acquisition
The cost of data and delay.
Embodiment 1
Based on the simulation parameter of table 1, the present embodiment simulates the wireless network implementation method in the present invention, and performance evaluation is such as
Under：When data provide node increase, the cost and delay that obtain data decrease, and are 10 when data provide number of nodes
When, the cost for obtaining data is 12, is postponed as 100ms.When the average distance that data provide node and data consumption node increases
Added-time, the cost and delay for obtaining data increase therewith, when the average distance that data provide node and data consumption node is 3
It jumps, the cost for obtaining data is 12, is postponed as 80ms.
1 simulation parameter of table
The present invention provides a kind of thinking of the implementation method of wireless communication, the method for implementing the technical solution
Many with approach, the above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.The available prior art of each component part being not known in the present embodiment is realized.
Claims (6)
1. a kind of implementation method of wireless communication, which is characterized in that the wireless network is divided into more than two subnets,
Each subnet includes a couple in router and more than two mobile nodes, and subnet passes through couple in router and internet phase
Even；
Three classes node is included in the subnet：Data provide node, data consumption node and ordinary node, and wherein data provide
Node is to have permission to provide a kind of mobile node of specific type of data, and data consumption node is has permission a kind of certain kinds of consumption
The mobile node of type data, ordinary node is, neither data provide node nor the mobile node of data consumption node, uses
In execution route forwarding function；
The wireless network includes a kind of anycast address of certain types of data of unique mark, and all have permission provides this kind of spy
The data for determining categorical data provide node one anycast group of composition, which should by anycast address unique mark, as mark
The anycast address of kind specific type of data；Node in anycast group is known as Anycast group membership；
All to have permission data consumption node one multicast group of composition for consuming a kind of specific type of data, the multicast group is by one
Multicast address unique mark；Node in multicast group is known as multicast members；
The unicast address of one mobile node route for global, is made of two parts：First part is network prefix, and length is
128-i bits, one subnet of network prefix unique mark, before the network of the unicast address of all mobile nodes in a subnet
Sew it is all identical, value be equal to identical subnet in couple in router network prefix；Second part is node ID, and length is i ratios
Spy, the node ID have uniqueness, one mobile node of unique mark in subnet；The allocation space of node ID is [1,2j], j
<i；
One anycast address is made of two parts：Network prefix and Anycast ID, the length of network prefix are 128-i bits, Anycast
The length of ID is i bits, and anycast address has network uniqueness；The allocation space of Anycast ID is [2j+1,2i-1]；
A kind of certain types of data divide K part, the label of k-th of partial content be：Anycast address k；K belongs to 1~K；
One data address is for obtaining a kind of certain types of data, including three parts：First part is in unicast address
Node ID, second part is the Anycast ID in anycast address, and Part III is partial set, and value is the portion of requested data
The value divided；
One multicast members preserves a data routing table, for recording the anycast members information for providing the multicast group data；
One data route table items records the information of an Anycast group membership, and a data route table items are divided into four domains：Unicast address
The unicast address of domain, anycast address domain, part domain and distance domain, wherein unicast address domain for Anycast group membership, anycast address domain
Be worth for multicast group have the right obtain data type corresponding to anycast address, the corresponding part number of part thresholding mark data, away from
Delocalization represents hop count of the multicast members apart from Anycast group membership；One subnet includes more than one multicast group, which connects
Enter router and be defaulted as be each multicast group in the subnet group membership.
2. the implementation method of a kind of wireless communication according to claim 1, which is characterized in that in Anycast group membership P1
Anycast address for A1, multicast address is that the multicast members of M1 have permission the situation of data that multicast address A1 is defined that obtains
Under；Anycast group membership P1 is proceeded as follows after producing k-th of partial data that anycast address A1 is defined：
Step 101：Start；
Step 102：Anycast group membership P1 sends a data sharing message, and the destination address of data sharing message is multicast address
M1, source address are the unicast address of Anycast group membership P1, and the load of data sharing message is k and anycast address A1；
Step 103：Multicast address is after the multicast members of M1 receive data sharing message, to increase in the data routing table of oneself
Add a list item, the unicast address domain of list item is the unicast address of Anycast group membership P1, and anycast address domain is A1, and part thresholding is
K, distance of the distance domain for the multicast members and Anycast group membership P1；
Step 104：Terminate.
3. a kind of implementation method of wireless communication according to claim 1, which is characterized in that multicast address be M1
Multicast members have permission the data for obtaining anycast address A1 mark in the case of, if multicast members C3 is located at subnet N1
It is interior, and the network prefix of anycast address A1 is under the jurisdiction of N1, multicast address is that the multicast members C3 of M1 will obtain anycast address A1
The kth partial data of mark, then perform following processes：
Step 201：Start；
Step 202：Multicast members C3 checks the data routing table of oneself, and chosen distance oneself is nearest and can provide anycast address
The Anycast group membership P2 of the kth partial data of A1 marks, builds a data address, and the node ID of data address is formed for Anycast
The node ID of member P2, Anycast ID are the corresponding Anycast ID of anycast address A1, and partial set value is k；Multicast members C3 is to Anycast
Group membership's P2 transmission data request messages, the destination address of data request information are data address, the source of data request information
Location is the unicast address of multicast members C3；
Step 203：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with anycast address
The kth partial data of A1 marks, then the node for receiving data request information returns to a data response message and stops turning
The data request information received is sent out, the source address of data response message is the list for the node oneself for receiving data request information
Address is broadcast, destination address is the unicast address of multicast members C3, and the load of data response message is anycast address A1 marks
Kth partial data carries out step 205；
Situation 2：If the node for receiving data request information is Anycast group membership P2, step 204 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information turns data request information
Next-hop is dealt into, carries out step 203；
Step 204：Anycast group membership P2 returns to data response message, the source of data response message to multicast members C3
Location is the unicast address of Anycast group membership P2, and destination address is the unicast address of multicast members C3, is loaded as anycast address A1
The kth partial data of mark；
Step 205：If the node for receiving data response message is the multicast members in multicast address M1, and the multicast group
Member also wants to obtain simultaneously the kth partial data of anycast address A1 marks, then the multicast members directly preserve data response
The kth partial data of anycast address A1 marks in message, final data response message reach multicast members C3；
Step 206：Terminate.
4. the implementation method of a kind of wireless communication according to claim 3, which is characterized in that multicast address is M1's
Multicast members have permission the data for obtaining anycast address A1 marks, and multicast members C3 is located in subnet N1, in subnet N1
Couple in router is AR1, and the network prefix of anycast address A1 is under the jurisdiction of N1, and the multicast members C3 that multicast address is M1 is from Anycast
Group membership P2 obtains the kth partial data of anycast address A1 marks, and multicast members C3 is sent to the data of Anycast group membership P2
After request message reaches the previous hop node E1 of Anycast group membership P2, if previous hop node E1 detects Anycast group membership P2 not
It is reachable, then multicast members C3 obtains the kth partial data of anycast address A1 marks from excessively following processes：
Step 301：Start；
Step 302：Node ID in the destination address of the data request information received is revised as accessing by previous hop node E1
The node ID of router AR1, then transmission data request message；
Step 303：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with anycast address
The kth partial data of A1 marks, then the node for receiving data request information returns to a data response message and stops turning
The data request information received is sent out, the source address of data response message is the list for the node oneself for receiving data request information
Address is broadcast, destination address is the unicast address of multicast members C3, loads the kth partial data identified for anycast address A1, into
Row step 307；
Situation 2：If the node for receiving data request information is couple in router AR1, step 304 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information turns data request information
Next-hop is dealt into, carries out step 303；
Step 304：Couple in router AR1 chosen distances oneself are nearest and can provide the anycast address A1 kth partial datas of mark
Anycast group membership P3, the node ID of the destination address of the data request information received is updated to the section of Anycast group membership P3
Point ID, then sends the data request information；
Step 305：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with anycast address
The kth partial data of A1 marks, then the node for receiving data request information returns to a data response message and stops turning
Send out the data request information that receives, the source address of data response message is the unicast for the node for receiving data request information
Location, destination address are the unicast address of multicast members C3, load the kth partial data identified for anycast address A1, are walked
Rapid 307；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 306 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information turns data request information
Next-hop is dealt into, carries out step 305；
Step 306：Anycast group membership P3 returns to data response message, the source of data response message to multicast members C3
Location is its unicast address, and destination address is the unicast address of multicast members C3, loads the kth portion identified for anycast address A1
Divided data；
Step 307：If the node for receiving data response message also wants to obtain simultaneously for the multicast members in multicast address M1
Take anycast address A1 identify kth partial data, then receive data response message node directly preserve data response disappear
The kth partial data of anycast address A1 marks in breath, final data response message reach multicast members C3；
Step 308：Terminate.
5. the implementation method of a kind of wireless communication according to claim 3, which is characterized in that multicast address is M1's
Multicast members have permission the data for obtaining anycast address A1 marks, if multicast members C3 is located in subnet N1, subnet N1
Couple in router for AR1, the network prefix of anycast address A2 is under the jurisdiction of N2, if multicast address is the multicast members C3 of M1
Obtaining the kth partial data of anycast address A2 marks, then multicast members C3 first looks at data routing table, if there is
The list item that Anycast ID is A2 and part thresholding is k, then multicast members C3 is obtained by performing in step 201 to step 205
The mode of the kth partial data of anycast address A1 marks obtains the kth partial data of anycast address A2 marks, otherwise multicast group
Member C3 performs following processes and obtains data：
Step 401：Start；
Step 402：Multicast members C3 sends teledata request message, and the destination address of teledata request message is Anycast
Address A2, source address are the unicast address of multicast members C3, are loaded as k；
Step 403：The node for receiving data request information is divided into the teledata request message that three kinds of situation processing receive：
Situation 1：If the node for receiving teledata request message is the multicast members of multicast address M1 and with Anycast
The kth partial data of address A2 marks, then the node for receiving teledata request message returns to a teledata response
Message simultaneously stops forwarding the teledata request message received, and the source address of teledata response message is for its unicast
Location, destination address are the unicast address of multicast members C3, load the kth partial data identified for anycast address A2, are walked
Rapid 410；
Situation 2：If the node for receiving teledata request message is couple in router AR1, step 404 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving teledata request message please by teledata
Message is asked to be forwarded to next-hop, carries out step 403；
Step 404：The teledata request message received is sent to internet, finally, teledata by couple in router AR1
Request message reaches couple in router AR2；
Step 405：Couple in router AR2 checks the data routing table of oneself, and chosen distance oneself is recently and with can providing Anycast
Anycast the group membership P3, couple in router AR2 of the kth partial data of location A2 marks build a data address, data address
Node ID is the node ID of Anycast group membership P3, and Anycast ID is the Anycast ID of anycast address A2, and partial set value is k, accesses road
From device AR2 to Anycast group membership's P3 transmission data request messages, the destination address of data request information is data address, source address
Unicast address for couple in router AR2；
Step 406：The node for receiving data request information is divided into the data request information that three kinds of situation processing receive：
Situation 1：If the node for receiving data request information is the multicast members of multicast address M1 and with anycast address
The kth partial data of A2 marks, then the node for receiving data request information returns to a data response message and stops turning
The data request information received is sent out, the source address of data response message is its unicast address, and destination address is route for access
The unicast address of device AR2 loads the kth partial data identified for anycast address A2, carries out step 408；
Situation 2：If the node for receiving data request information is Anycast group membership P3, step 407 is carried out；
Situation 3：If situation 1 and situation 2 do not comply with, the node for receiving data request information turns data request information
Next-hop is dealt into, carries out step:406；
Step 407：Anycast group membership P3 returns to a data response message, the source of data response message to couple in router AR2
Address is its unicast address, and destination address is the unicast address of couple in router AR2, loads the identified for anycast address A2
K partial datas；
Step 408：If the node for receiving data response message is the multicast members in multicast address M1, multicast composition
Member also wants to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve data response and disappear
The kth partial data of anycast address A2 marks in breath, final data response message reach couple in router AR2；
Step 409：Couple in router AR2 returns to a teledata response message, the destination address of teledata response message
For the unicast address of multicast members C3, the kth partial data identified for anycast address A2 is loaded；
Step 410：If the node for receiving teledata response message is the multicast members in multicast address M1, the multicast
Group membership also wants to obtain simultaneously the kth partial data of anycast address A2 marks, then the multicast members directly preserve data sound
The kth partial data that the anycast address A2 in message is answered to identify, final teledata response message reach multicast members C3；
Step 411：Terminate.
A kind of 6. implementation method of wireless communication according to claim 5, which is characterized in that each Anycast group membership
Periodically new information is sent to the couple in router of place network, the unicast of the source address of new information for Anycast group membership
Location loads the anycast address for place anycast group and the data portion score value k that can be provided；
If in the given time, couple in router does not receive the new information of Anycast group membership, then by Anycast group membership
Corresponding list item is deleted from data routing table, and then couple in router obtains data defined in the anycast address to having the right
Multicast members send one deletion message, delete message destination address be multicast group multicast address, load as this
Broadcast the unicast address of group membership；After multicast members receive deletion message, the data routing table of oneself is checked, delete unicast address
Thresholding is equal to the route table items for deleting the unicast address in message；
The anycast address of Anycast group membership is A1, after Anycast group membership is moved to a new subnet, the access to new subnet
Router sends new information, and receive the couple in router of new information increases the anycast group in the data routing table of oneself
The list item of member, while disappear to multicast members' one increase of transmission for having the right to obtain data defined in anycast address A1
Breath, the destination address for increasing message is the multicast address of the multicast group, loads the unicast address for Anycast group membership, Anycast
Location and the data portion score value k that can be provided；Multicast members are received after increasing message, increase the Anycast in data routing table
The route table items of group membership.
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| CN106506368B (en) * | 2016-10-19 | 2019-01-11 | 常熟理工学院 | A kind of data communication implementation method Internet-based |
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