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A realization method of multi-gateway wmn load balancing based on dynamic clustering under ieee802.11s

A IEEE802.11s, load balancing technology, applied in network traffic/resource management, wireless communication, electrical components, etc., can solve the problems of traffic difference, waste of channel resources, large network overhead, etc., to reduce overhead and transmission. Delay and reduce the effect of network overhead

Active Publication Date: 2020-09-15
CHINA WATERBORNE TRANSPORT RES INST +1
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Problems solved by technology

[0003] At present, most WMNs based on the IEEE802.11s protocol have only one gateway node, and the gateway node is a key node connecting the WMN and the external network. The bottleneck node of external network communication
In the traditional multi-gateway WMN, all network nodes are in one subnet, each node needs to exchange information with a large number of other nodes, and the network overhead is very large; The transmitted traffic will also vary greatly, resulting in waste of channel resources

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  • A realization method of multi-gateway wmn load balancing based on dynamic clustering under ieee802.11s
  • A realization method of multi-gateway wmn load balancing based on dynamic clustering under ieee802.11s
  • A realization method of multi-gateway wmn load balancing based on dynamic clustering under ieee802.11s

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0028] Such as figure 1 Shown is a multi-gateway wireless Mesh network based on dynamic clustering under the IEEE802.11s protocol, including multiple gateway nodes MPP and several ordinary nodes (MP). The entire Mesh network is divided into multiple clusters, and the gateway nodes are used as clusters Head, nodes in the same cluster can communicate directly, nodes in different clusters must communicate through gateway nodes, and MP nodes can decide whether to change clusters to achieve dynamic clustering according to the path metrics from themselves to the gateway and the load of the gateway.

[0029] Such as figure 1 As shown, the gateway node MPP mainly implements the acquisition and dissemination of cluster identification and load index:

[0030] 1. acquisition of cluster identification and load index: cluster identification must have uniquene...

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Abstract

The invention discloses a dynamic clustering based multi-gateway WMN load balancing realization method in presence of IEEE802.11s. The dynamic clustering based multi-gateway WMN load balancing realization method in presence of IEEE802.11s comprises the steps of regarding a gateway node as a cluster head and a gateway MAC address as a cluster identifier; adding the cluster head and the cluster identifier in an RANN frame and a PREQ frame to realize cluster selection and cluster segmentation of a common node; modifying the processing process of the PREP frame and the PERR frame to maintain a transcendental tree routing and realize smooth transition of a routing list and a gateway load when the cluster of the node is changed; and giving comprehensive consideration to the path Metric from the node to the gateway and the load condition of the gateway per se when the common node selects the cluster, and selecting an optimal gateway to realize the purpose of balancing the gateway load, wherein the load volume is the proportion of the length of a transmission queue buffering region of a wired network card of a gateway node to the total length of the queue, and is added in the RANN frame for broadcasting. According to the dynamic clustering based multi-gateway WMN load balancing realization method in presence of IEEE802.11s, the dynamic clustering based multi-gateway wireless Mesh network and gateway load balancing is realized, the network overhead is reduced, the gateway load is balanced and the performance of the whole network is accordingly improved.

Description

technical field [0001] The invention relates to a dynamic clustering-based multi-gateway WMN load balancing realization method under IEEE802.11s, which belongs to the wireless Mesh network communication technology. Background technique [0002] Wireless Mesh Network (WMN) is more and more widely used in the world, and better network performance is an important condition for large-scale application. [0003] At present, most WMNs based on the IEEE802.11s protocol have only one gateway node, and the gateway node is a key node connecting the WMN and the external network. The bottleneck node of external network communication. In the traditional multi-gateway WMN, all network nodes are in one subnet, each node needs to exchange information with a large number of other nodes, and the network overhead is very large; The transmitted traffic will also vary greatly, resulting in waste of channel resources. Therefore, the realization of dynamic clustering of multiple gateways and ga...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08
CPCH04W28/08
Inventor 耿雄飞吴俊文王霄峻文捷
Owner CHINA WATERBORNE TRANSPORT RES INST
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