CN102158812B - Wireless Mesh network multicasting communication method of AC-AP (Access Controller-Access Point) framework - Google Patents
Wireless Mesh network multicasting communication method of AC-AP (Access Controller-Access Point) framework Download PDFInfo
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Abstract
The invention discloses a wireless Mesh network multicasting communication method of an AC-AP (Access Controller-Access Point) framework. On the basis of the self characteristics of a Mesh network of the AC-AP framework, two communication parties are expanded into simultaneous multisource single point to multiple-point communication from single point to single point communication so as to effectively improve the performance of network communication and improve network transmission efficiency. The method comprises the following steps: each AP added into the network is distributed with one unique overall-situation fixed ID in advance according to a distributed identification allocation algorithm; a multicasting group is maintained by an AC; the multicast carries out addressing on the basis of GID (Group Identification) instead of being based on the traditional multicasting IP address; multicasting between AC-AP and AP-AP is finished by AC cooperation; and in order to improve the multicasting throughput, a multicasting spanning tree is built on the basis of a minimum transmission spanning tree. The wireless Mesh network multicasting communication method is easy and simple, supports the multicasting of two modes of AC-AP and AP-AP, does not need to change the original network on a large scale, is easy to deploy and realize and can effectively improve the average multicasting transmission rate of the wireless Mesh system.
Description
Technical field
The present invention relates to wireless communication technology and field of network management, specifically a kind of method that realizes cast communication in the 802.11WLAN wireless Mesh netword, be used for AC ?AP framework wireless Mesh netword realize AC ?AP and AP ? multicast between the AP, and can improve the average throughput of multi-source multicast.
Background technology
At first abbreviation of the prior art and definition thereof are described:
IEEE(Institute of Electrical and Electronics Engineering): U.S. electric and Electronic Engineering Association;
WLAN(Wireless Local Area Network): WLAN (wireless local area network);
IEEE802.11s:WLAN Mesh draft agreement;
AP(Access Point): WAP (wireless access point) provides the access service of wireless network for wireless terminal;
WAP: WAP (wireless access point)
STA(Station) portable terminal, the terminal use among the WLAN inserts WLAN, accesses network by AP;
WMN(Wireless Mesh Network): wireless Mesh netword;
MP(Mesh Point): the Mesh node;
MAP(Mesh Access Point): the Mesh access point;
MPP(Mesh Point Portal): the Mesh gateway;
AC(Access Point): access controller;
Wireless Mesh netword is a kind of novel wireless access network, can provide pervasive Internet access service for the wireless terminal in the covering domain, as shown in Figure 1.Universal day by day along with WLAN terminal and application, the deployment of WAP is intensive day by day, and the overlay area distributes to the development that distributes of large-area hot-zone from focus.The change of this deployment way also makes the form of AP and networking model that great change has taken place, and changes the wireless AC centralized control of " thin " AP+ framework into by the distributed networking pattern of traditional " fat " AP+ cable convertor.
The centralized control framework of the wireless AC of " thin " AP+ is repartitioned the function of equipment, and wherein wireless AC is responsible for access control, forwarding and statistics, the configuration monitoring of AP, roaming management, the OAMAgent of AP, the security control of wireless network; Thin AP is responsible for the simple functions such as statistics of the encryption and decryption of 802.11 messages, 802.11 PHY function, the management of accepting wireless controller, RF interface.Added many important new functions simultaneously, guaranteed as power adaptive, wireless security management, radio frequency (RF) monitoring and management, seamless roam and QoS between AP centralized management, AP etc.
Centralized control type framework comprises the concentrated forwarding of business datum and two kinds of modes of local forwarding; Concentrated forwarding refers to that business datum by the concentrated forwarding of AC, then adopts tunneling technique transmit traffic data and management control data between Lightweight AP and the AC; The local forwarding refers to that business datum transmitted by Lightweight AP, has only management control data stream to focus on AC.Present equipment mainly adopts concentrated pass-through mode.
Summary of the invention
Purpose of the present invention: design a kind of based on AC ?the efficient multicast communication means of Wireless Mesh network in the thin AP environment of AP framework.The present invention make full use of AC ?on the basis of AP framework advantage, make Mesh network support AC ?AP and AP ?the multicast of two kinds of patterns of AP, solve multicast throughput that the multi-source multicast the causes problem that acutely descends simultaneously, reach the purpose that improves the multicast average throughput.Concrete technical scheme of the present invention is as follows:
A kind of AC ?AP framework wireless Mesh netword cast communication framework, by introducing node ID and multicast GID mechanism, realize the universality of cast communication framework;
Propose a kind of distributed sign allocation algorithm (DIAA, Distributed ID ?Assignment Algorithm), be network node reasonable distribution ID;
According to AC ?the design feature of AP framework self, proposing a kind of is the centralized coordination system at center with AC, and multicast pattern is sorted out, realize AC ?AP multicast and AP ?AP multicast dual mode, can not carry out big change simultaneously to legacy network;
A kind of load-balancing algorithm (MT3 ?LBA) that generates tree based on the minimum transfer time is proposed, by being the route criterion with the transmission time between neighbors, realization is to the improvement of multi-source multicast throughput overall performance, makes wireless Mesh netword can hold more not on the same group multicasts simultaneously.
Specifically comprise following content:
A kind of wireless Mesh netword method for multicast communication based on thin AP environment, step comprises:
(1) new AP adds network, distributes the unique fixing sign ID of the overall situation for each AP earlier;
(2) be that whole multicast group are distributed multicast identifier GID by AC, GID adds up successively since 1; A multicast group has the unique fixing GID of the overall situation;
The multicast source node is that destination address sends multicast packet with GID, himself need not to add multicast group, and therefore, a node both can also can be arranged in a plurality of different multicast group simultaneously simultaneously as source node and destination node;
(3) source address be the multicast of the sign ID of AC be AC ?the multicast of ap mode, source address be the multicast of the sign ID of AP be AP ?the multicast of ap mode; Judgement still is transmitted to AC with the direct delivery of data to intermediate node according to source address;
If source address is not the sign ID of AC, then forward the data to AC earlier, finish multicast by the AC agency, in this process, source node to the transmission means between the AC uses clean culture to carry out;
When data forwarding during to AC or data when originating in AC, AC generates the tree path with data according to multicast and carries out route transmission;
(4) multicast generates the load-balancing algorithm of the structure employing of tree based on minimum transfer time tree, and step comprises:
At first, source node uses BFS that each node is carried out layering;
Then, in breadth First ergodic algorithm BFS, the neighbors transmission time T that source node is surveyed according to broadcasting Probe
NCalculate self transmission time to each node;
Next, the node that the number of plies is the highest from multicast group begins, and selects a father node that is positioned at last layer, makes this node to the T between the father node of selecting
NMinimum;
At last, returning previous step, is the generation tree foundation of root up to one with the source node.
When GID increases in the network, promptly there is increasing multicast group in the network, the T of the Radio Link that load this moment is heavy
NCan become big, when the multicast that MT3 ?LBA continuation structure is new generates tree, will select more suitably Radio Link, thereby optimize average multicast throughput.
In the described step 1), adopt distributed sign allocation algorithm DIAA for each AP distributes the unique fixing sign ID of the overall situation, the step of this algorithm comprises:
At first, the new node AP of network to be added communicates by letter with neighbors by broadcasting Probe;
Then, if neighbor node has distributable sign ID, then the sign ID with 1/2 quantity all distributes to this node AP, reports the sign ID of AC simultaneously to AP;
If there are a plurality of neighbor nodes that sign ID is provided, AP gets the minimum sign ID that neighbors provided of single-hop time, and the sign ID of first ID among this sign ID as oneself, all the other keep makes to divide adapted;
At last, AP is to the ID of AC report oneself, treat that AC confirms after, AP adds network successfully.
Cast communication AC ?between the AP or AP ?carry out between the AP, the step of cast communication comprises:
At first, all multicast destination nodes add same multicast group, and this multicast group GID is safeguarded by AC; AC safeguards one simultaneously oneself to be the SPT multicast tree of root, is communicated with each multicast destination node;
Then, judge the cast communication pattern:
If AC ? multicast between the AP, promptly AC sends multicast packet to all multicast group AP, is that SPT multicast tree each destination node in multicast group sends data by the direct TongYuan of AC tree type multicast tree directly then;
If AP sends multicast packet to all AP of certain multicast group, then this AP sends to the AC that safeguards this multicast group GID with data, acts on behalf of multicast by AC, directly sends data by SPT multicast tree each destination node in multicast group by AC;
In the said process, AP sends data to AC and uses clean culture.
When certain multicast group did not contain any AP, AC reclaimed this multicast group GID, and method is to reclaim control information by AC to one of this multicast member multicast, and all multicast members after receiving and reclaiming control information empty this GID that oneself preserves.
Described load-balancing algorithm based on minimum transfer time tree (MT3 ?LBA, Minimum Transmission Time Tree ?based Load ?Balancing Algorithm), as shown in the table:
Advantage of the present invention: make multicast not rely on multicast ip address; Utilized AC ?the centralized control type framework of AP, take as the leading factor with AC, make network can support simultaneously AC ?AP with AP ?the multicast of AP two kinds of patterns; Efficiently support the multi-source multicast, improved the extensibility of multicast.
Description of drawings
Fig. 1 is a typical IEEE802.11 wireless Mesh netword topological diagram;
Fig. 2 be AC ?AP framework wireless Mesh netword structure chart;
Fig. 3 is a typical multi-source (2 a source) multicast schematic diagram;
Fig. 4 is the network topology schematic diagram of Wireless Mesh local area network (LAN), and wherein, dotted line is represented the IEEE802.11 Radio Link, and arrow is represented the data flow direction in the cast communication.
The C node is arranged in multicast tree 1 among Fig. 3, and the B node is arranged in multicast tree 2.The AC node is the multicast source node among Fig. 4, and the C node is the multicast destination node, and the D node is the forward node in the multicast tree.
Embodiment
A kind of wireless Mesh netword method for multicast communication based on thin AP environment, it comprises:
1) new AP adds network, and for each AP distributes the unique sign ID that fixes of the overall situation, this ID manages maintenance by AC, plays the access control effect by distributed sign allocation algorithm (DIAA, Distributed ID ?Assignment Algorithm).Make up a single-hop neighbor node table by ID between each adjacent AP, and safeguard by the Probe controlling packet.AC self also has the unique constant mark of the overall situation, and whole network is by ID but not IP carries out addressing, and this makes this method not rely on specific I P network;
2) multicast is that unit organizes and addressing with the multicast group.Multicast group has the unique fixing multicast identifier GID of the overall situation, is safeguarded and is distributed by AC.Any multicast purpose AP of multicast source node in multicast group sends data, all the other AP all can receive in the group, the multicast source node needs not to be the member of this multicast group, does not also need to know the concrete route that arrives this multicast member, only needs the GID that knows this multicast member can send multicast packet;
3) the present invention is divided into two kinds according to the type of communicating pair with multicast pattern, is respectively: AC ? multicast between the AP and AP ? multicast between the AP.Two types multicast all needs to coordinate to finish by AC.AC ?in the AP multicast, if AP not in multicast group, then adds multicast group by AC with AP, initiate multicast then; AP ?in the AP multicast, the multicast source node can be in multicast group, this moment, it sent multicast request to AC, was finished by the AC agency;
4) pass through Probe controlling packet interactive information between each adjacent AP, needn't pass through AC.When multicast group is on the increase in the network, for satisfying the extensibility of multi-source multicast, i.e. increasing along with GID quantity, each multicast performance can acutely not descend, the present invention carries out load balancing to the multi-source multicast, propose a load-balancing algorithm, improved multi-source multicast average throughput based on minimum transfer time generation tree.
Described distributed sign allocation algorithm is that AP initiatively applies for identifying ID, moves the application of the node response AP of DIAA, and a constant mark ID that the overall situation is unique is provided.Specifically, DIAA carries out according to following steps:
1) node AP newly adds network, communicates alternately by broadcasting Join_REQ control information and neighbors;
2) if neighbor node a has distributable sign ID, then the sign ID with 1/2 quantity is transferred to node AP, reports the sign ID of AC simultaneously.If have a plurality of neighbor nodes that sign ID is provided, then get the minimum sign ID that neighbors provided of single-hop time;
3) AP gets the sign ID of first sign ID as oneself, and all the other ID keep, and are used to initiate AP allocation identification ID;
4) after the time-delay of AP through one section random time, utilize the sign ID of AC, report own employed sign ID to AC by the Join_REP control information, AC writes down this sign ID, and the sign ID by this AP returns response Join_ACK, and AP receives Join_ACK, adds the network success.
Even there is available sign ID in whole network, if having sign ID, neighbor node not can be used for distributing, then this AP can not add network in this position, this access control has effectively guaranteed load balancing, can not make some place of network cause serious channel confliction and low excessively link bandwidth because of there being multinode.
Each AP is by the unified configuration of AC, control and management.Do not use IP to carry out addressing, non-IP network also can be used this method and carry out cast communication, has enlarged the scope of application of multicast.All multicast identifier GID in AC maintenance and the distribution network.An AP adds certain multicast group, only need preserve this multicast group GID, and same AP can add a plurality of different multicast group.AC safeguards that according to the multicast tree generating algorithm one is the SPT multicast tree of leaf with oneself as root, each multicast destination node.When certain multicast group did not contain any AP, AC reclaimed this multicast group GID, and this reclaims control information by AC to one of this multicast member multicast, and all multicast members after receiving and reclaiming control information empty this GID that oneself preserves.
Cast communication AC ?between the AP or AP ?carry out between the AP.This method of multicasting allows the multicast source node not add multicast group can transmit data to multicast group.Specifically, cast communication carries out according to following process:
1) all multicast destination nodes add same multicast group, and this multicast group GID is safeguarded by AC.AC safeguards one simultaneously oneself to be the SPT multicast tree of root, is communicated with each multicast destination node;
2) judge the cast communication pattern, if AC ? multicast between the AP, promptly AC sends multicast packet to all multicast group AP, then forwards step 4 to;
3) if AP sends multicast packet to all AP of certain multicast group, then this AP sends to the AC that safeguards this multicast group GID with data, acts on behalf of multicast by AC;
4) directly send data by AC by SPT multicast tree each destination node in multicast group.
Annotate: AP sends data to AC and uses clean culture but not multicast.
Below, the present invention will be further described with specific embodiment in conjunction with the accompanying drawings.Present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
The present invention in conjunction with the AC of legacy network ?AP centralized control type framework, proposing one is the wireless Mesh netword method for multicast communication at center with AC, application ID and GID replace original IP address in the method, use the support of new multicast tree generating algorithm realization, reduce to increase the load inequality extent that causes because of multicast group to the multi-source multicast.
Fig. 4 shows and uses an actual wireless Mesh network topological diagram of the present invention.Except that a node AC (marking), all the other nodes are AP among the figure.Each node all Probe of neighbor node broadcasting towards periphery detective is surveyed information such as single-hop time and neighbor node state.Because the Probe detection packet constantly is sent out and receives, therefore link-state information is the reasonable computation minimum transfer time to generate tree also in continuous variation, gets the interior at interval mean value of certain hour as the single-hop transmission time, in this enforcement, getting the time interval is 30 seconds.
In the present embodiment, node AC and node 18, respectively to node 49,58,61,64 and node 2,3,4,8,10 multicast packets.
A, before multicast, at first be that the logic of whole network is set up, promptly each node obtains own ID in network, inserts network that this AC has jurisdiction over.This process is based on distributed sign allocation algorithm DIAA, and concrete steps are as follows:
1) AC oneself adds network, and be minimal network this moment.The maximum ID that this test case adopts is 64.AC oneself distributes ID=0.The distributable ID set { 1 of AC ... 64};
2) each node is to neighbor node broadcasting Join_REQ control information, and request adds network.Only having can be for the node response Join_REQ that distributes ID.AC responds first request, and with { 1 ... 32} distributes to this node, informs self ID simultaneously.AC responds second request, and with { 33 ... 48} distributes to this node, informs self ID simultaneously.AC responds the 3rd request, and with { 49 ... 56} distributes to this node, informs self ID simultaneously.AC responds the 4th request, and with { 57 ... 60} distributes to this node, informs self ID simultaneously.AC responds the 5th request, and with { 61 ... 62} distributes to this node, informs self ID simultaneously.AC responds the 6th request, and with { 63} distributes to this node, informs self ID simultaneously.So far, AC has not had the Join_REQ response;
3) assign to each node of ID, get in the set ID reckling as own ID, all the other ID keep and make minute adapteds.As node among Fig. 41,33,49,57,61,63.These nodes are by the ID of Join_ACK to AC report oneself.After AC receives Join_ACK, in node listing of oneself safeguarding and ID corresponding relation, carry out record, and return Join_REP.When node is received the Join_REP that AC returns, add the network success;
Delay when 4) node that does not add network is waited for one section, continue to send out Join_REQ to neighbor node, the existing node of network this moment AC, and 1,33,49,57,61,63}, wherein any have and can all can respond Join_REQ for the node that distributes ID, and its process is with above step.Set up up to network, or ID exhausts and do not allow new node to add.
B, set up when network and to finish, node AC and node 18 at first obtain multicast group GID separately before initiating multicast.Because GID is safeguarded that by AC AC can directly obtain, and record GID and each multicast group member's corresponding relation.Node 18 reports to AC with multicast group member and self by Multicast_ACK, returns GID by AC by Multicast_REP, and AC writes down the corresponding relation of each member in this GID and the multicast group simultaneously.Next, AC and node 18 are root with AC jointly, set up multicast tree, connect AC to each multicast destination node, for carrying out load balancing control, the process of setting up of multicast tree adopt based on the minimum transfer time generate tree load-balancing algorithm MT3 ?LBA, its step is (is example with AC):
1) AC utilizes breadth First ergodic algorithm BFS, with from as ground floor, to from the close-by examples to those far off layering of each node in the network.In this test case, ground floor: AC; The second layer: 1,33,49,57,61; The 3rd layer: 2,18,50,58,62,63,64; The 4th layer: 3,19,26,59; Layer 5: 4,8,10,20; Layer 6: 5,9,21;
2) each node was sought frame with 1 second time interval to neighbor node broadcasting Probe, surveyed the time delay of channel between itself and the neighbor node.With mean value in 30 seconds as transmission time T
NValue.In this test case, T
NValue is labeled in by the dotted line among Fig. 4;
3) from node 58, select a father node 57 that is positioned at last layer, and 58 T to this father node
NBe minimum; For node 64, also select 57; Node 57 and 49,61 all selects AC, and then algorithm finishes, and MT3 successfully constructs.
It is similar to be the source node process that makes up multicast tree with AC with node 18, and different is, after building the MT3 that AC is a root, node 18 is set up a path to AC, and all multicast packets are through AC forwarding.
At last, { 49,58,61,64} sends data to AC to the multicast destination node by MT3; { 2,3,4,8,10} sends data to the MT3 that node 18 is set up by AC to the multicast destination node.By the AC in the centralized control type framework, realized AC ?AP and AP ?the multicast of AP two kinds of patterns.
Claims (4)
1. wireless Mesh netword method for multicast communication based on thin AP environment is characterized in that step comprises:
(1) new AP adds network, distributes the unique fixing sign ID of the overall situation for each AP earlier;
(2) be that whole multicast group are distributed multicast identifier GID by AC, GID adds up successively since 1; A multicast group has the unique fixing GID of the overall situation;
The multicast source node is that destination address sends multicast packet with GID, himself need not to add multicast group, and therefore, a node both can also can be arranged in a plurality of different multicast group simultaneously simultaneously as source node and destination node;
(3) source address be the multicast of the sign ID of AC be AC ?the multicast of ap mode, source address be the multicast of the sign ID of AP be AP ?the multicast of ap mode; Judgement still is transmitted to AC with the direct delivery of data to intermediate node according to source address;
If source address is not the sign ID of AC, then forward the data to AC earlier, finish multicast by the AC agency, in this process, source node to the transmission means between the AC uses clean culture to carry out;
When data forwarding during to AC or data when originating in AC, AC generates the tree path with data according to multicast and carries out route transmission;
(4) multicast generates the load-balancing algorithm of the structure employing of tree based on minimum transfer time tree, and step comprises:
At first, source node uses BFS that each node is carried out layering;
Then, in breadth First ergodic algorithm BFS, the neighbors transmission time T that source node is surveyed according to broadcasting Probe
NCalculate self transmission time to each node;
Next, the node that the number of plies is the highest from multicast group begins, and selects a father node that is positioned at last layer, makes this node to the T between the father node of selecting
NMinimum;
At last, returning previous step, is the generation tree foundation of root up to one with the source node.
2. the wireless Mesh netword method for multicast communication based on thin AP environment according to claim 1, it is characterized in that: in the described step 1), adopt distributed sign allocation algorithm DIAA for each AP distributes the unique fixing sign ID of the overall situation, the step of this algorithm comprises:
At first, the new node AP of network to be added communicates by letter with neighbors by broadcasting Probe;
Then, if neighbor node has distributable sign ID, then the sign ID with 1/2 quantity all distributes to this node AP, reports the sign ID of AC simultaneously to AP;
If there are a plurality of neighbor nodes that sign ID is provided, AP gets the minimum sign ID that neighbors provided of single-hop time, and the sign ID of first ID among this sign ID as oneself, all the other keep makes to divide adapted;
At last, AP is to the ID of AC report oneself, treat that AC confirms after, AP adds network successfully.
3. the wireless Mesh netword method for multicast communication based on thin AP environment according to claim 1 is characterized in that: cast communication AC ?between the AP or AP ?carry out between the AP, the step of cast communication comprises:
At first, all multicast destination nodes add same multicast group, and this multicast group GID is safeguarded by AC; AC safeguards one simultaneously oneself to be the SPT multicast tree of root, is communicated with each multicast destination node;
Then, judge the cast communication pattern:
If AC ? multicast between the AP, promptly AC sends multicast packet to all multicast group AP, is that SPT multicast tree each destination node in multicast group sends data by the direct TongYuan of AC tree type multicast tree directly then;
If AP sends multicast packet to all AP of certain multicast group, then this AP sends to the AC that safeguards this multicast group GID with data, acts on behalf of multicast by AC, directly sends data by SPT multicast tree each destination node in multicast group by AC;
In the said process, AP sends data to AC and uses clean culture.
4. the wireless Mesh netword method for multicast communication based on thin AP environment according to claim 1, it is characterized in that: when certain multicast group does not contain any AP, AC reclaims this multicast group GID, method is to reclaim control information by AC to one of this multicast member multicast, all multicast members after receiving and reclaiming control information empty this GID that oneself preserves.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395144B (en) * | 2011-11-11 | 2014-07-02 | 福建星网锐捷网络有限公司 | Wireless access point upgrade method, system thereof and device thereof |
| JP5875699B2 (en) * | 2013-01-07 | 2016-03-02 | 三菱電機株式会社 | Data distribution system, root radio and radio |
| CN103167631B (en) * | 2013-03-27 | 2016-04-27 | 杭州华三通信技术有限公司 | A kind of mesh aggregation link method for building up and equipment |
| CN104540240A (en) * | 2014-12-31 | 2015-04-22 | 上海交通大学 | Access method for vehicle-mounted client supported by wireless network |
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| CN109039910B (en) * | 2018-07-26 | 2020-11-20 | 新华三技术有限公司 | Message forwarding method and device |
| TWI684380B (en) | 2018-09-26 | 2020-02-01 | 啟碁科技股份有限公司 | Wireless mesh network topology map management method based on positioning technique |
| CN110087333B (en) * | 2019-04-26 | 2020-12-04 | 新华三技术有限公司 | Method, device, equipment and storage medium for preventing service interruption |
| CN111770493B (en) * | 2020-05-11 | 2022-06-17 | 烽火通信科技股份有限公司 | Method and system for adding AP into Mesh network |
| CN113055827B (en) * | 2021-03-12 | 2022-06-17 | 云知声智能科技股份有限公司 | Method, device and system for realizing nearby awakening of distributed equipment based on AC + AP network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364873A (en) * | 2008-09-27 | 2009-02-11 | 中国移动通信集团福建有限公司 | Thin AP wireless access apparatus based on multiple SSID technique |
| CN101420354A (en) * | 2008-11-26 | 2009-04-29 | 北京航空航天大学 | Multicast spreading method oriented to wide area network remote virtual environment |
| CN101568069A (en) * | 2008-04-25 | 2009-10-28 | 上海贝尔阿尔卡特股份有限公司 | Method and device for providing multicast service for external mobile terminal |
| CN101969396A (en) * | 2010-09-02 | 2011-02-09 | 北京邮电大学 | Time delay and bandwidth resource-based relay selection method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7606178B2 (en) * | 2005-05-31 | 2009-10-20 | Cisco Technology, Inc. | Multiple wireless spanning tree protocol for use in a wireless mesh network |
| US8422497B2 (en) * | 2008-10-16 | 2013-04-16 | Soongsil University Research Consortium Techno-Park | Method for configuring and managing multicast data delivery path in mobile ad-hoc network and multicast data delivery system using the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568069A (en) * | 2008-04-25 | 2009-10-28 | 上海贝尔阿尔卡特股份有限公司 | Method and device for providing multicast service for external mobile terminal |
| CN101364873A (en) * | 2008-09-27 | 2009-02-11 | 中国移动通信集团福建有限公司 | Thin AP wireless access apparatus based on multiple SSID technique |
| CN101420354A (en) * | 2008-11-26 | 2009-04-29 | 北京航空航天大学 | Multicast spreading method oriented to wide area network remote virtual environment |
| CN101969396A (en) * | 2010-09-02 | 2011-02-09 | 北京邮电大学 | Time delay and bandwidth resource-based relay selection method |
Non-Patent Citations (8)
| Title |
|---|
| .2004,全文. * |
| ETSI TR 102 328 v1.1.1(2004-07)> * |
| ETSI."Fixed Radio Systems |
| Multipoint equipment * |
| Report on Fixed Wireless Access systems which apply Mesh topology and operate in applicable Fixed Service bands within the 3 GHz to 11 GHz range".<ETSI TR 102 328 v1.1.1(2004-07)>.2004,全文. |
| Report on Fixed Wireless Access systems which apply Mesh topology and operate in applicable Fixed Service bands within the 3 GHz to 11 GHz range".< * |
| 无线Mesh网络中的组播机会路由研究;樊秀梅 等;《电子学报》;20100131;全文 * |
| 樊秀梅 等.无线Mesh网络中的组播机会路由研究.《电子学报》.2010,全文. |
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