CN102572016B - Method for realizing cluster-based distributed mobile self-organizing network IPv6 (Internet Protocol version 6) address configuration - Google Patents

Method for realizing cluster-based distributed mobile self-organizing network IPv6 (Internet Protocol version 6) address configuration Download PDF

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CN102572016B
CN102572016B CN201210059297.XA CN201210059297A CN102572016B CN 102572016 B CN102572016 B CN 102572016B CN 201210059297 A CN201210059297 A CN 201210059297A CN 102572016 B CN102572016 B CN 102572016B
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node
bunch
cluster head
tree
network
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CN102572016A (en
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王晓喃
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JIANGSU TRIGIANT TECHNOLOGY Co.,Ltd.
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Changshu Institute of Technology
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Abstract

The invention provides a method for realizing cluster-based distributed mobile self-organizing network IPv6 (Internet Protocol version 6) address configuration. A mobile self-organizing network comprises a root node, a cluster head node, an intra-cluster node, a cluster gateway node and a new node; the mobile self-organizing network is partitioned into a plurality of clusters, each cluster comprises a cluster head node, and all cluster head nodes constitute more than one treelike structure; nodes which are started firstly in the mobile self-organizing network are identified as a cluster head anode and a root node simultaneously, and the root node is used for assigning IPv6 addresses to other cluster head nodes in the treelike structure; the cluster head node is used for assigning an IPv6 address to the intra-cluster node of the node, and the intra-cluster node does not have a route forwarding function; the new node is a node for which an IPv6 address is not configured; and the cluster gateway node is an intra-cluster node in a communication range where two cluster head nodes cannot be communicated directly and has a route forwarding function, and the two cluster head nodes cannot be communicated directly are communicated with each other through the cluster gateway node.

Description

Based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method
Technical field
The present invention relates to a kind of implementation method of address configuration, in particular based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method.
Background technology
Between node in mobile self-grouping network, communication realizes by forwarding and the route of intermediate node, therefore, each node must be furnished with the address with uniqueness and realize communication, and therefore, realizing one of key technology that automatic ad-hoc network need to solve is exactly the automatic allocation problem in address.
Current address configuration is divided into state address configuration and two kinds of forms of stateless address configuration, there is state address allocation plan to adopt the communication mode of server/customer end to distribute address, being that node is filed an application the request of address to server, is then the node distribution address in network by server unification.Because mobile ad hoc network is without any infrastructure, for example server, therefore, has state address allocation plan to be applied in mobile ad hoc network.In stateless address configuration scheme, duplicate address detection need to be carried out to guarantee its uniqueness in each address being assigned with in whole network, caused a large amount of control to unwrap pin, consumed a large amount of Internet resources, be not therefore also suitable for mobile ad hoc network and use.
Therefore for mobile self-grouping network, need to set up a kind of automatic allocation plan in address of low expense.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is for the deficiencies in the prior art, provide based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method.
Technical scheme: the invention discloses based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, described mobile self-grouping network comprises five kinds of nodes: root node, cluster head node, bunch interior nodes, bunch gateway node and new node;
Described mobile self-grouping network is divided into a plurality of bunches, each bunch comprises a cluster head node, all cluster head nodes form more than one tree: the node first starting in mobile self-grouping network is designated to cluster head node and root node simultaneously, and root node is other cluster head nodes distributing IP v6 address in the tree of place;
Described cluster head node is this bunch bunch interior nodes distributing IP v6 address, and bunch interior nodes does not have route forwarding function;
Described new node is the node of configuration of IP v6 address not;
Described bunch of gateway node is bunch interior nodes that is positioned at the communication range of two cluster head nodes that can not direct communication, has route forwarding function, two can not direct communication cluster head node by a bunch gateway node, communicate by letter;
The IPv6 address of described root node, bunch gateway node, cluster head node and bunch interior nodes comprises four parts: first is network ID, by root node, adopt random function to generate, length is 128-i-j-n bit, and in a mobile self-grouping network, the network ID of all nodes is identical; Second portion is tree ID, and length is i bit, and the root node of being set by place adopts random function to generate, tree of unique identification, and in a tree, the tree ID of all nodes is identical; Third part is a bunch ID, and length is j bit, by root node, distributes to the cluster head node in this tree, one bunch of unique identification, and bunch ID of the cluster head node of bunch is identical with bunch ID of all bunches of interior nodes in this bunch; The 4th part is node ID, and length is n bit, by cluster head node, distributes to a bunch interior nodes; Described i, j and n are less than 128 positive integer and i, and j, n three's sum are less than or equal to 128, and bunch ID of root node and node ID are 0, and the node ID of cluster head node is 0;
During initial condition, between network ID setting area, be [1,2 128-i-j-n-1] between tree ID setting area, be, [1,2 i-1], root node is that cluster head address of node allocation space is [1,2 j-1], cluster head node is that the address assignment space of bunch interior nodes is [1,2 n-1];
Described root node and cluster head node are preserved a node ID distribution state table, the situation of distribution node ID for recording, and they are regular broadcast within the scope of a jumping, and message load is network ID, tree ID and bunch ID;
Described root node is preserved a bunch of ID distribution state table, the situation of distributing bunch ID for recording;
Described new node adds after mobile self-grouping network, if do not receive the message of root node or cluster head node broadcasts, and broadcast request message within the scope of a jumping; A bunch interior nodes within the scope of one jumping is received after request message, to new node, returns to response message;
If new node is not received any response message, oneself is designated to root node, and adopts random function produce network ID and set the IPv6 address that ID forms oneself, wherein bunch ID and node ID are 0, then broadcast within the scope of a jumping, message load is network ID, tree ID and bunch ID;
If have two above new nodes to be designated root node and to have set up tree in mobile self-grouping network, carry out union operation between plural tree and make the network ID of all nodes in mobile self-grouping network all identical simultaneously.
In the method for the invention, if new node is received the broadcast of root node or cluster head node at the appointed time, it obtains IPv6 address according to following step:
Step 301: start;
Step 302: new node is to root node or cluster head node sending node ID request message;
Step 303: root node or cluster head node are received after node ID request message, the node ID of minimum unassigned is encapsulated in node ID response message, the state that upgrades respective nodes ID in node ID distribution state table, then returns to new node by node ID response message;
Step 304: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and a bunch ID in broadcast, and will oneself be labeled as a bunch interior nodes;
Step 305: finish;
If new node is not received the broadcast of root node or cluster head node, but received response message from a bunch interior nodes, selected bunch interior nodes of signal strength signal intensity maximum and obtain IPv6 address according to following step:
Step 401: start;
Step 402: new node is to a bunch interior nodes sending node ID request message;
Step 403: a bunch interior nodes is received after node ID request message, sends bunch ID request message to root node;
Step 404: root node is received after bunch ID request message, is encapsulated into a bunch ID for minimum unassigned in bunch ID response message, upgrades the state of respective cluster ID in bunch ID distribution state table simultaneously, and a bunch ID response message is returned to a bunch interior nodes;
Step 405: a bunch interior nodes is received after bunch ID response message, will oneself be labeled as cluster head node, is combined original network ID, tree ID and forms new IPv6 address simultaneously with bunch ID of distribution, wherein, node ID is 0, and abandons original IPv6 address;
Step 406: new cluster head node is set up node ID distribution state table, the node ID of minimum unassigned is encapsulated in node ID response message, upgrade the state of respective nodes ID in node ID distribution state table simultaneously, and node ID response message is returned to new node;
Step 407: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and bunch ID of new cluster head node, and will oneself be labeled as a bunch interior nodes;
Step 408: finish.
In said process, bunch process of establishing and the address configuration process of cluster head node and bunch interior nodes carry out simultaneously, meanwhile, the transmission of message is controlled within the scope of a jumping, has reduced address configuration cost, has shortened address configuration delay, has strengthened extension of network.
In the method for the invention, cluster head node regularly sends updating message to represent in normal operating conditions to root node; Root node is received after the updating message of cluster head node, to cluster head node, returns to response message to represent in normal operating conditions; If root node is not received the updating message of cluster head node at the appointed time, think cluster head node failure or depart from mobile self-grouping network, and a bunch ID corresponding to cluster head node is set to not configuration status;
If cluster head node is not received the response message of root node at the appointed time, it thinks that root node lost efficacy or departed from mobile self-grouping network, and elects new root node according to following step:
Step 501: start;
Step 502: cluster head node is the new root node message of middle broadcast in mobile ad hoc network;
Step 503: the neighbours' cluster head node with cluster head node in same tree receives after new root node message, relatively whether its cluster head node ID is greater than bunch ID of cluster head node, if be greater than, carry out step 505, otherwise carry out step 504;
Step 504: neighbours' cluster head node continues the new root node message that broadcast is received, carry out step 506;
Step 505: the new root node message that neighbours' cluster head node is abandoned receiving regenerates simultaneously and broadcast another new root node message;
Step 506: repeating step 503～step 505, until all cluster head nodes in same tree are all received the new root node message that the cluster head node of maximum bunch ID sends with cluster head node;
Step 507: the cluster head node of bunch ID maximum is elected as new root node;
Step 508: finish;
After new root node is elected successfully, a bunch ID for IPv6 address is set to 0, notifies its a bunch of interior nodes bunch ID to be set to 0, the message of going on the air simultaneously, set up bunch ID distribution state table simultaneously, and safeguard a bunch ID resource allocation status by receiving a bunch updating message for cluster head node transmission.
Said process not only for bunch and the topological structure of tree, also guaranteed the uniqueness of address simultaneously.
In the method for the invention, bunch interior nodes regularly to this bunch of cluster head node sending node updating message to show that it is in normal operating conditions, cluster head node receives after the updating message of bunch interior nodes, to it, returns and upgrades response message to show that it is in normal operating conditions; If cluster head node is not received the updating message of bunch interior nodes at the appointed time, it thinks that bunch interior nodes lost efficacy or departed from mobile ad hoc network, and node ID corresponding to bunch interior nodes is set to not configuration status;
If bunch interior nodes is not received the response message that this bunch of cluster head node sends at the appointed time, it thinks cluster head node failure or depart from mobile ad hoc network, and elects new cluster head node according to following step:
Step 601: start;
Step 602: bunch interior nodes is the new cluster head node messages of middle broadcast in mobile ad hoc network;
Step 603: in this bunch, other bunch of interior nodes received after new cluster head node messages, relatively whether its node ID is greater than the node ID of bunch interior nodes, if so, carry out step 605, otherwise, carry out step 604;
Step 604: other bunch of interior nodes continues the new cluster head node messages that broadcast is received, carry out step 606;
Step 605: the new cluster head node messages that other bunch of interior nodes abandoned receiving regenerates simultaneously and broadcast a new cluster head node messages;
Step 606: repeating step 603 steps 605, until all bunches of interior nodes are all received the new cluster head node messages in this bunch with bunch interior nodes transmission of maximum node ID in this bunch;
Step 607: bunch interior nodes of node ID maximum is elected as new cluster head node;
Step 608: finish.
Said process for bunch topological structure, guaranteed the uniqueness of address simultaneously.
In the method for the invention, if node A detects it, there is different network IDs from Node B, carry out union operation, if node A detects it, there is identical IPv6 address with Node B, carry out union operation.
In the method for the invention, if the node A in mobile self-grouping network 1 detects the network ID that network ID that it has different network IDs and a node A from Node B in mobile self-grouping network 2 is greater than Node B, node A carries out union operation to guarantee the uniqueness of address according to following step:
Step 701: start;
Step 702: node A broadcast merges message, message load is the network ID of mobile self-grouping network 1 and the tree ID of node A place tree;
Step 703: whether the node of receiving merging message is a bunch interior nodes, if so, carry out step 704, otherwise carry out step 705;
Step 704: abandon merging message, carry out step 715;
Step 705: whether the node of receiving merging message is that root node and network ID are different from the network ID merging in message, if so, carries out 708, otherwise carry out step 706;
Step 706: receive in the node judgement for the previous period that merges message whether received the merging message from node A, if so, carry out step 704, otherwise carry out step 707;
Step 707: continue broadcast and merge message, carry out step 703;
Step 708: root node is broadcasted its tree ID in network;
Step 709: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 710, otherwise carry out step 712;
Step 710: other root nodes return to tree ID collision message to root node;
Step 711: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, carry out step 708;
Step 712: root node is by network ID and set the tree ID that ID is updated to the network ID of mobile self-grouping network 1 and has uniqueness;
Step 713: root node sends address updating message to all cluster head nodes in this tree, notifies them the network ID of IPv6 and tree ID to be updated to network ID and the tree ID of root node;
Step 714: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade network ID and tree ID;
Step 715: finish.
In the method for the invention, if the node A in mobile ad hoc network 1 detects it, have identical IPv6 address with the Node B in mobile ad hoc network 2, node A carries out union operation according to following step:
Step 801: start;
Step 802: node A sends address repetition message to root node, the network ID of root node is identical with tree ID with the network ID of node A with tree ID;
Step 803: root node is received after the repetition message of address, utilizes random function to regenerate a tree ID root node and broadcast its tree ID in network;
Step 804: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 805, otherwise carry out step 807;
Step 805: other root nodes return to tree ID collision message to root node;
Step 806: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, carry out step 803;
Step 807: root node is updated to the tree ID with uniqueness by tree ID;
Step 808: root node sends address updating message to all cluster head nodes in this tree, notifies them tree ID to be updated to the tree ID of root node;
Step 809: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade tree ID;
Step 810: finish;
In above-mentioned steps, transport layer adopts Transmission Control Protocol, with the mutual correctness of guarantee information, for example, when root node sends address repetition message to cluster head node, two cluster head nodes with identical address all can be received address repetition message simultaneously so, in this case, root node only establishes a connection with one of them cluster head node, only have the IPv6 address of a cluster head node to upgrade, another one remains unchanged, and so just can guarantee that the address in the mobile self-grouping network after merging has uniqueness.
In the method for the invention, if a part bunch splits off from mobile ad hoc network road, they are new root node by the cluster head node election of bunch ID maximum, upgrade the IPv6 address of new root node place bunch bunch interior nodes simultaneously;
If the part of several bunches bunch interior nodes splits off from mobile ad hoc network road, they are new cluster head node by a bunch interior nodes election for node ID maximum in separately bunch, and then be new root node by the cluster head node election of bunch ID maximum, upgrade the IPv6 address of new root node place bunch bunch interior nodes simultaneously.
By said process, the node splitting off forms new mobile self-grouping network, has completed address configuration process and has guaranteed address uniqueness simultaneously.
Beneficial effect: the invention provides based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, because nodes in MANET has main frame and two identity of router simultaneously, therefore cause mobile ad hoc network architecture different with conventional network architecture, so the IPv6 address configuration scheme in legacy network cannot be applied in mobile self-grouping network at present, the address configuration scheme of using in the urgent need to a kind of applicable mobile self-grouping network.In the present invention, in the process of bunch foundation, realized the address configuration process of cluster head node and bunch interior nodes simultaneously, and the transmission of address configuration message is controlled within the scope of a jumping, without carrying out address duplicate detection, can guarantee the uniqueness of address, improve address configuration efficiency, strengthened extension of network.Because cluster head node is distributed in whole mobile self-grouping network, therefore realized load balancing.Node in described mobile self-grouping network, by the implementation method of IPv6 address configuration provided by the present invention, can have the IPv6 address with network uniqueness, thereby realizes correct communication.The present invention can be applicable to the numerous areas such as traffic prosecution and agriculture project, is with a wide range of applications.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is done further and illustrated, above-mentioned and/or otherwise advantage of the present invention will become apparent.
Fig. 1 is mobile self-grouping network topological structure schematic diagram of the present invention.
Fig. 2 is IPv6 address structure schematic diagram of the present invention.
Fig. 3 is node ID distribution state list item structural representation of the present invention.
Fig. 4 is of the present invention bunch of ID distribution state list item structural representation.
Fig. 5 is that new node of the present invention obtains IPv6 address schematic flow sheet from root node or cluster head node.
Fig. 6 is that new node of the present invention obtains IPv6 address schematic flow sheet from a bunch interior nodes.
Fig. 7 is the new root node schematic flow sheet of election of the present invention.
Fig. 8 is the new cluster head node schematic flow sheet of election of the present invention.
Fig. 9 is the schematic flow sheet of combination situation 1 of the present invention.
Figure 10 is the schematic flow sheet of combination situation 2 of the present invention.
Embodiment:
The invention provides based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, in described method, each node in mobile self-grouping network can obtain the IPv6 address with network uniqueness, realizes correct communication.
Fig. 1 is mobile self-grouping network topological structure schematic diagram of the present invention.Described mobile self-grouping network 1 comprises five kinds of nodes: root node 2, cluster head node 3, bunch interior nodes 4, bunch gateway node 5 and new node 6; Described mobile self-grouping network 1 is divided into a plurality of bunches 7, each bunch 7 comprises a cluster head node 3, all cluster head nodes 3 form more than one tree 8: the node first starting in mobile self-grouping network 1 is designated to cluster head node 3 and root node 2 simultaneously, and root node 2 is other cluster head node 3 distributing IP v6 addresses in place tree 8; Described cluster head node 3 is 7 bunches of interior nodes of this bunch, 4 distributing IP v6 addresses, and bunch interior nodes 4 does not have route forwarding function; Described new node 6 is the node of configuration of IP v6 address not; Described bunch of gateway node 5, for being positioned at bunch interior nodes 4 of the communication range of two cluster head nodes 3 that can not direct communication, has route forwarding function, two can not direct communication cluster head node 3 by 5 communications of bunch gateway node;
Described new node 6 adds after mobile self-grouping network 1, if receive the message of root node 2 or 3 broadcast of cluster head node, broadcast request message within the scope of a jumping; Bunch interior nodes 4 within the scope of one jumping is received after request message, to new node 6, returns to response message;
If new node 6 is not received any response message, oneself is designated to root node 2, and adopt random function to produce network ID and set the IPv6 address that ID forms oneself, wherein bunch ID and node ID are 0, then broadcast within the scope of a jumping, message load is network ID, tree ID and bunch ID;
Fig. 2 is IPv6 address structure schematic diagram of the present invention.The IPv6 address of described root node, bunch gateway node, cluster head node and bunch interior nodes comprises four parts: first is network ID, by root node, adopt random function to generate, length is 128-i-j-n bit, and in a mobile self-grouping network, the network ID of all nodes is identical; Second portion is tree ID, and length is i bit, and the root node of being set by place adopts random function to generate, tree of unique identification, and in a tree, the tree ID of all nodes is identical; Third part is a bunch ID, and length is j bit, by root node, distributes to the cluster head node in this tree, one bunch of unique identification, and bunch ID of the cluster head node of bunch is identical with bunch ID of all bunches of interior nodes in this bunch; The 4th part is node ID, and length is n bit, by cluster head node, distributes to a bunch interior nodes; Described i, j and n are less than 128 positive integer and i, and j, n three's sum are less than or equal to 128, and bunch ID of root node and node ID are 0, and the node ID of cluster head node is 0;
During initial condition, between network ID setting area, be [1,2 128-i-j-n-1] between tree ID setting area, be, [1,2 i-1], root node is that cluster head address of node allocation space is [1,2 j-1], cluster head node is that the address assignment space of bunch interior nodes is [1,2 n-1].
Fig. 3 is node ID distribution state list item structural representation of the present invention.Described root node and cluster head node are preserved a node ID distribution state table, the situation of distribution node ID for recording, and node ID distribution state list item comprises two territories: node ID and distribution state, wherein distribution state comprises and distributing with unallocated.
Fig. 4 is of the present invention bunch of ID distribution state list item structural representation.Described root node is preserved a bunch of ID distribution state table, the situation of distributing bunch ID for recording, and a bunch ID distribution state list item comprises two territories: bunch ID and distribution state, wherein distribution state comprises and distributing with unallocated.
Fig. 5 is that new node of the present invention obtains IPv6 address schematic flow sheet from root node or cluster head node.
If new node is received the broadcast of root node or cluster head node at the appointed time, it obtains IPv6 address according to following step:
Step 301: start;
Step 302: new node is to root node or cluster head node sending node ID request message;
Step 303: root node or cluster head node are received after node ID request message, the node ID of minimum unassigned is encapsulated in node ID response message, the state that upgrades respective nodes ID in node ID distribution state table, then returns to new node by node ID response message;
Step 304: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and a bunch ID in broadcast, and will oneself be labeled as a bunch interior nodes;
Step 305: finish;
Fig. 6 is that new node of the present invention obtains IPv6 address schematic flow sheet from a bunch interior nodes.If new node is not received the broadcast of root node or cluster head node, but received response message from a bunch interior nodes, selected bunch interior nodes of signal strength signal intensity maximum and obtain IPv6 address according to following step:
Step 401: start;
Step 402: new node is to a bunch interior nodes sending node ID request message;
Step 403: a bunch interior nodes is received after node ID request message, sends bunch ID request message to root node;
Step 404: root node is received after bunch ID request message, is encapsulated into a bunch ID for minimum unassigned in bunch ID response message, upgrades the state of respective cluster ID in bunch ID distribution state table simultaneously, and a bunch ID response message is returned to a bunch interior nodes;
Step 405: a bunch interior nodes is received after bunch ID response message, will oneself be labeled as cluster head node, is combined original network ID, tree ID and forms new IPv6 address simultaneously with bunch ID of distribution, wherein, node ID is 0, and abandons original IPv6 address;
Step 406: new cluster head node is set up node ID distribution state table, the node ID of minimum unassigned is encapsulated in node ID response message, upgrade the state of respective nodes ID in node ID distribution state table simultaneously, and node ID response message is returned to new node;
Step 407: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and bunch ID of new cluster head node, and will oneself be labeled as a bunch interior nodes;
Step 408: finish.
In said process, bunch process of establishing and the address configuration process of cluster head node and bunch interior nodes carry out simultaneously, meanwhile, the transmission of message is controlled within the scope of a jumping, has reduced address configuration cost, has shortened address configuration delay, has strengthened extension of network.
Fig. 7 is the new root node schematic flow sheet of election of the present invention.Cluster head node regularly sends updating message to represent in normal operating conditions to root node; Root node is received after the updating message of cluster head node, to cluster head node, returns to response message to represent in normal operating conditions; If root node is not received the updating message of cluster head node at the appointed time, think cluster head node failure or depart from mobile self-grouping network, and a bunch ID corresponding to cluster head node is set to not configuration status;
If cluster head node is not received the response message of root node at the appointed time, it thinks that root node lost efficacy or departed from mobile self-grouping network, and elects new root node according to following step:
Step 501: start;
Step 502: cluster head node is the new root node message of middle broadcast in mobile ad hoc network;
Step 503: the neighbours' cluster head node with cluster head node in same tree receives after new root node message, relatively whether its cluster head node ID is greater than bunch ID of cluster head node, if be greater than, carry out step 505, otherwise carry out step 504;
Step 504: neighbours' cluster head node continues the new root node message that broadcast is received, carry out step 506;
Step 505: the new root node message that neighbours' cluster head node is abandoned receiving regenerates simultaneously and broadcast another new root node message;
Step 506: repeating step 503～step 505, until all cluster head nodes in same tree are all received the new root node message that the cluster head node of maximum bunch ID sends with cluster head node;
Step 507: the cluster head node of bunch ID maximum is elected as new root node;
Step 508: finish;
After new root node is elected successfully, a bunch ID for IPv6 address is set to 0, notifies its a bunch of interior nodes bunch ID to be set to 0, the message of going on the air simultaneously, set up bunch ID distribution state table simultaneously, and safeguard a bunch ID resource allocation status by receiving a bunch updating message for cluster head node transmission.
Said process not only for bunch and the topological structure of tree, also guaranteed the uniqueness of address simultaneously.
Fig. 8 is the new cluster head node schematic flow sheet of election of the present invention.Bunch interior nodes regularly to this bunch of cluster head node sending node updating message to show that it is in normal operating conditions, cluster head node is received after the updating message of bunch interior nodes, to it, returns and upgrades response message to show that it is in normal operating conditions; If cluster head node is not received the updating message of bunch interior nodes at the appointed time, it thinks that bunch interior nodes lost efficacy or departed from mobile ad hoc network, and node ID corresponding to bunch interior nodes is set to not configuration status;
If bunch interior nodes is not received the response message that this bunch of cluster head node sends at the appointed time, it thinks cluster head node failure or depart from mobile ad hoc network, and elects new cluster head node according to following step:
Step 601: start;
Step 602: bunch interior nodes is the new cluster head node messages of middle broadcast in mobile ad hoc network;
Step 603: in this bunch, other bunch of interior nodes received after new cluster head node messages, relatively whether its node ID is greater than the node ID of bunch interior nodes, if so, carry out step 605, otherwise, carry out step 604;
Step 604: other bunch of interior nodes continues the new cluster head node messages that broadcast is received, carry out step 606;
Step 605: the new cluster head node messages that other bunch of interior nodes abandoned receiving regenerates simultaneously and broadcast a new cluster head node messages;
Step 606: repeating step 603 steps 605, until all bunches of interior nodes are all received the new cluster head node messages in this bunch with bunch interior nodes transmission of maximum node ID in this bunch;
Step 607: bunch interior nodes of node ID maximum is elected as new cluster head node;
Step 608: finish.
Said process for bunch topological structure, guaranteed the uniqueness of address simultaneously.
Fig. 9 is the schematic flow sheet of combination situation 1 of the present invention.If the node A in mobile self-grouping network 1 detects the network ID that network ID that it has different network IDs and a node A from Node B in mobile self-grouping network 2 is greater than Node B, node A carries out union operation to guarantee the uniqueness of address according to following step:
Step 701: start;
Step 702: node A broadcast merges message, message load is the network ID of mobile self-grouping network 1 and the tree ID of node A place tree;
Step 703: whether the node of receiving merging message is a bunch interior nodes, if so, carry out step 704, otherwise carry out step 705;
Step 704: abandon merging message, carry out step 715;
Step 705: whether the node of receiving merging message is that root node and network ID are different from the network ID merging in message, if so, carries out 708, otherwise carry out step 706;
Step 706: receive in the node judgement for the previous period that merges message whether received the merging message from node A, if so, carry out step 704, otherwise carry out step 707;
Step 707: continue broadcast and merge message, carry out step 703;
Step 708: root node is broadcasted its tree ID in network;
Step 709: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 710, otherwise carry out step 712;
Step 710: other root nodes return to tree ID collision message to root node;
Step 711: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, carry out step 708;
Step 712: root node is by network ID and set the tree ID that ID is updated to the network ID of mobile self-grouping network 1 and has uniqueness;
Step 713: root node sends address updating message to all cluster head nodes in this tree, notifies them the network ID of IPv6 and tree ID to be updated to network ID and the tree ID of root node;
Step 714: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade network ID and tree ID;
Step 715: finish.
Figure 10 is the schematic flow sheet of combination situation 2 of the present invention.If the node A in mobile ad hoc network 1 detects it, have identical IPv6 address with the Node B in mobile ad hoc network 2, node A carries out union operation according to following step:
Step 801: start;
Step 802: node A sends address repetition message to root node, the network ID of root node is identical with tree ID with the network ID of node A with tree ID;
Step 803: root node is received after the repetition message of address, utilizes random function to regenerate a tree ID root node and broadcast its tree ID in network;
Step 804: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 805, otherwise carry out step 807;
Step 805: other root nodes return to tree ID collision message to root node;
Step 806: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, carry out step 803;
Step 807: root node is updated to the tree ID with uniqueness by tree ID;
Step 808: root node sends address updating message to all cluster head nodes in this tree, notifies them tree ID to be updated to the tree ID of root node;
Step 809: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade tree ID;
Step 810: finish;
In above-mentioned steps, transport layer adopts Transmission Control Protocol, with the mutual correctness of guarantee information, for example, when root node sends address repetition message to cluster head node, two cluster head nodes with identical address all can be received address repetition message simultaneously so, in this case, root node only establishes a connection with one of them cluster head node, only have the IPv6 address of a cluster head node to upgrade, another one remains unchanged, and so just can guarantee that the address in the mobile self-grouping network after merging has uniqueness.
In sum, the invention provides based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, technique can be applied to vehicle-mounted monitoring, medical treatment & health, the numerous areas such as military and national defense, for example, in vehicle-mounted monitoring field, can by based on bunch the implementation method technology of distributed mobile self-grouping network IPv6 address configuration be applied to road blocking monitor, in every vehicle, a plurality of nodes can be installed, they form one bunch, after configuration address, can carry out information communication, transmission road traffic condition, effectively to avoid road congested, keep the traffic moving, therefore, this technology has very high promotional value.
The invention provides based on bunch the thinking of distributed mobile self-grouping network IPv6 address configuration implementation method; method and the approach of this technical scheme of specific implementation are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each component part all available prior art realized.

Claims (8)

  1. Based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, described mobile self-grouping network comprises five kinds of nodes: root node, cluster head node, bunch interior nodes, bunch gateway node and new node;
    Described mobile self-grouping network is divided into a plurality of bunches, each bunch comprises a cluster head node, all cluster head nodes form more than one tree: the node first starting in mobile self-grouping network is designated to cluster head node and root node simultaneously, and root node is other cluster head nodes distributing IP v6 address in the tree of place;
    Described cluster head node is this bunch bunch interior nodes distributing IP v6 address, and bunch interior nodes does not have route forwarding function;
    Described new node is the node of configuration of IP v6 address not;
    Described bunch of gateway node is bunch interior nodes that is positioned at the communication range of two cluster head nodes that can not direct communication, has route forwarding function, two can not direct communication cluster head node by a bunch gateway node, communicate by letter;
    The IPv6 address of described root node, bunch gateway node, cluster head node and bunch interior nodes comprises four parts: first is network ID, by root node, adopt random function to generate, length is 128-i-j-n bit, and in a mobile self-grouping network, the network ID of all nodes is identical; Second portion is tree ID, and length is i bit, and the root node of being set by place adopts random function to generate, tree of unique identification, and in a tree, the tree ID of all nodes is identical; Third part is a bunch ID, and length is j bit, by root node, distributes to the cluster head node in this tree, one bunch of unique identification, and bunch ID of the cluster head node of bunch is identical with bunch ID of all bunches of interior nodes in this bunch; The 4th part is node ID, and length is n bit, by cluster head node, distributes to a bunch interior nodes; Described i, j and n be less than 128 positive integer and i, j, n three's sum is less than or equal to 128, bunch ID of root node and node ID are 0, the node ID of cluster head node is 0;
    During initial condition, between network ID setting area, be [1,2 128-i-j-n-1] between tree ID setting area, be, [1,2 i-1], root node is that cluster head address of node allocation space is [1,2 j-1], cluster head node is that the address assignment space of bunch interior nodes is [1,2 n-1];
    Described root node and cluster head node are preserved a node ID distribution state table, the situation of distribution node ID for recording, and root node and cluster head node be regular broadcast within the scope of a jumping, and message load is network ID, tree ID and bunch ID;
    Described root node is preserved a bunch of ID distribution state table, the situation of distributing bunch ID for recording;
    Described new node adds after mobile self-grouping network, if do not receive the message of root node or cluster head node broadcasts, and broadcast request message within the scope of a jumping; A bunch interior nodes within the scope of one jumping is received after request message, to new node, returns to response message;
    If new node is not received any response message, oneself is designated to root node, and adopts random function produce network ID and set the IPv6 address that ID forms oneself, wherein bunch ID and node ID are 0, then broadcast within the scope of a jumping, message load is network ID, tree ID and bunch ID;
    If have two above new nodes to be designated root node and to have set up tree in mobile self-grouping network, carry out union operation between plural tree and make the network ID of all nodes in mobile self-grouping network all identical simultaneously.
  2. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, if new node is received the broadcast of root node or cluster head node at the appointed time, it obtains IPv6 address according to following step:
    Step 301: start;
    Step 302: new node is to root node or cluster head node sending node ID request message;
    Step 303: root node or cluster head node are received after node ID request message, the node ID of minimum unassigned is encapsulated in node ID response message, the state that upgrades respective nodes ID in node ID distribution state table, then returns to new node by node ID response message;
    Step 304: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and a bunch ID in broadcast, and will oneself be labeled as a bunch interior nodes;
    Step 305: finish;
    If new node is not received the broadcast of root node or cluster head node, but received response message from a bunch interior nodes, selected bunch interior nodes of signal strength signal intensity maximum and obtain IPv6 address according to following step:
    Step 401: start;
    Step 402: new node is to a bunch interior nodes sending node ID request message;
    Step 403: a bunch interior nodes is received after node ID request message, sends bunch ID request message to root node;
    Step 404: root node is received after bunch ID request message, is encapsulated into a bunch ID for minimum unassigned in bunch ID response message, upgrades the state of respective cluster ID in bunch ID distribution state table simultaneously, and a bunch ID response message is returned to a bunch interior nodes;
    Step 405: a bunch interior nodes is received after bunch ID response message, will oneself be labeled as cluster head node, is combined original network ID, tree ID and forms new IPv6 address simultaneously with bunch ID of distribution, wherein, node ID is 0, and abandons original IPv6 address;
    Step 406: new cluster head node is set up node ID distribution state table, the node ID of minimum unassigned is encapsulated in node ID response message, upgrade the state of respective nodes ID in node ID distribution state table simultaneously, and node ID response message is returned to new node;
    Step 407: new node receives after node ID response message, combines the node ID of distribution to form IPv6 address with network ID, tree ID and bunch ID of new cluster head node, and will oneself be labeled as a bunch interior nodes;
    Step 408: finish.
  3. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, cluster head node regularly sends updating message to represent in normal operating conditions to root node; Root node is received after the updating message of cluster head node, to cluster head node, returns to response message to represent in normal operating conditions; If root node is not received the updating message of cluster head node at the appointed time, think cluster head node failure or depart from mobile self-grouping network, and a bunch ID corresponding to cluster head node is set to not configuration status;
    If cluster head node is not received the response message of root node at the appointed time, it thinks that root node lost efficacy or departed from mobile self-grouping network, and elects new root node according to following step:
    Step 501: start;
    Step 502: cluster head node is the new root node message of middle broadcast in mobile ad hoc network;
    Step 503: the neighbours' cluster head node with the source cluster head node of new root node message in same tree is received after new root node message, relatively whether its bunch ID is greater than bunch ID of the source cluster head node of the new root node message of receiving, if be greater than, carry out step 505, otherwise carry out step 504;
    Step 504: neighbours' cluster head node continues the new root node message that broadcast is received, carry out step 506;
    Step 505: the new root node message that neighbours' cluster head node is abandoned receiving regenerates simultaneously and broadcast another new root node message;
    Step 506: repeating step 503～step 505, until all cluster head nodes in same tree are all received the new root node message that the cluster head node of maximum bunch ID sends with cluster head node;
    Step 507: the cluster head node of bunch ID maximum is elected as new root node;
    Step 508: finish;
    After new root node is elected successfully, a bunch ID for IPv6 address is set to 0, notifies its a bunch of interior nodes bunch ID to be set to 0, the message of going on the air simultaneously, set up bunch ID distribution state table simultaneously, and safeguard a bunch ID resource allocation status by receiving a bunch updating message for cluster head node transmission.
  4. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, bunch interior nodes regularly to this bunch of cluster head node sending node updating message to show that it is in normal operating conditions, cluster head node is received after the updating message of bunch interior nodes, to it, returns and upgrades response message to show that it is in normal operating conditions; If cluster head node is not received the updating message of bunch interior nodes at the appointed time, it thinks that bunch interior nodes lost efficacy or departed from mobile ad hoc network, and node ID corresponding to bunch interior nodes is set to not configuration status;
    If bunch interior nodes is not received the response message that this bunch of cluster head node sends at the appointed time, it thinks cluster head node failure or depart from mobile ad hoc network, and elects new cluster head node according to following step:
    Step 601: start;
    Step 602: bunch interior nodes is the new cluster head node messages of middle broadcast in mobile ad hoc network;
    Step 603: in this bunch, other bunch of interior nodes received after new cluster head node messages, relatively whether its node ID is greater than the node ID of the source bunch interior nodes of the new cluster head node messages of receiving, if so, carry out step 605, otherwise, carry out step 604;
    Step 604: other bunch of interior nodes continues the new cluster head node messages that broadcast is received, carry out step 606;
    Step 605: the new cluster head node messages that other bunch of interior nodes abandoned receiving regenerates simultaneously and broadcast a new cluster head node messages;
    Step 606: repeating step 603～step 605, until all bunches of interior nodes are all received the new cluster head node messages in this bunch with bunch interior nodes transmission of maximum node ID in this bunch;
    Step 607: bunch interior nodes of node ID maximum is elected as new cluster head node;
    Step 608: finish.
  5. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, if detecting it, node A there is different network IDs from Node B, carry out union operation, if node A detects it, there is identical IPv6 address with Node B, carry out union operation.
  6. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, if the node A in mobile self-grouping network 1 detects the network ID that network ID that it has different network IDs and a node A from Node B in mobile self-grouping network 2 is greater than Node B, node A carries out union operation to guarantee the uniqueness of address according to following step:
    Step 701: start;
    Step 702: node A broadcast merges message, message load is the network ID of mobile self-grouping network 1 and the tree ID of node A place tree;
    Step 703: judgement receives whether the node of merging message is a bunch interior nodes, if so, carry out step 704, otherwise carry out step 705;
    Step 704: abandon merging message, carry out step 715;
    Step 705: judgement receives whether the node of merging message is that root node and network ID are different from the network ID merging in message, if so, carries out 708, otherwise carry out step 706;
    Step 706: receive in the node judgement for the previous period that merges message whether received the merging message from node A, if so, carry out step 704, otherwise carry out step 707;
    Step 707: continue broadcast and merge message, carry out step 703;
    Step 708: root node is broadcasted its tree ID in network;
    Step 709: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 710, otherwise carry out step 712;
    Step 710: other root nodes return to tree ID collision message to root node;
    Step 711: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, carry out step 708;
    Step 712: root node is by network ID and set the tree ID that ID is updated to the network ID of mobile self-grouping network 1 and has uniqueness;
    Step 713: root node sends address updating message to all cluster head nodes in this tree, notifies them the network ID of IPv6 and tree ID to be updated to network ID and the tree ID of root node;
    Step 714: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade network ID and tree ID;
    Step 715: finish.
  7. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, if the node A in mobile ad hoc network 1 detects it, have identical IPv6 address with the Node B in mobile ad hoc network 2, node A carries out union operation according to following step:
    Step 801: start;
    Step 802: node A sends address repetition message to root node, the network ID of root node is identical with tree ID with the network ID of node A with tree ID;
    Step 803: root node is received address repetition message, utilize random function to regenerate a tree ID, and root node is broadcasted its tree ID in network;
    Step 804: whether the tree ID of other root node judgements oneself is consistent with the tree ID of broadcast, if so, carry out step 805, otherwise carry out step 807;
    Step 805: other root nodes return to tree ID collision message to root node;
    Step 806: root node is received after tree ID collision message, utilizes random function to regenerate a tree ID, and root node broadcasts its tree ID in network, carry out step 804;
    Step 807: root node is updated to the tree ID with uniqueness by tree ID;
    Step 808: root node sends address updating message to all cluster head nodes in this tree, notifies them tree ID to be updated to the tree ID of root node;
    Step 809: cluster head node sends address updating message to all bunches of interior nodes in this bunch, notifies their to upgrade tree ID;
    Step 810: finish;
    In above-mentioned steps, transport layer adopts Transmission Control Protocol.
  8. According to claim 1 based on bunch distributed mobile self-grouping network IPv6 address configuration implementation method, it is characterized in that, if a part bunch splits off from mobile self-grouping network, they are new root node by the cluster head node election of bunch ID maximum, upgrade the IPv6 address of new root node place bunch bunch interior nodes simultaneously;
    If the part of a several bunches bunch interior nodes splits off from mobile self-grouping network, they are new cluster head node by a bunch interior nodes election for node ID maximum in separately bunch, and then be new root node by the cluster head node election of bunch ID maximum, upgrade the IPv6 address of new root node place bunch bunch interior nodes simultaneously.
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