A Routing Switching Method Based on Wireless Local Area Network

Abstract

The present invention relates to the technical field of wireless communication, especially a routing switching method based on a wireless local area network, comprising: step S1, interacting with all MESH nodes in the wireless local area network to obtain neighbor information; step S2, interacting with all MESH nodes in the wireless local area network Nodes interact to obtain service node information; step S3, according to neighbor information and service node information, to form a two-way authority graph; step S4, regularly calculate the weight of the routes of all MESH nodes in the two-way authority graph, and It is judged in real time whether the weight value of the route conforms to a preset switching rule, and when the preset switching rule is met, the wireless local area network automatically switches the route. The beneficial effect of the technical solution of the present invention lies in: the bandwidth change of the wireless local area network is sensed in advance through the management frame, and the route is calculated in advance, so that the MESH node can realize the seamless switching of the route and the seamless roaming of the service terminal at a moving speed above 100km / h , and further, the stability of the wireless local area network is improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a routing switching method based on a wireless local area network. Background technique [0002] Wireless MESH technology is a new type of wireless network technology that is completely different from traditional wireless networks. In a traditional WLAN, each client accesses the network through a wireless link connected to an access point (AP). If users want to communicate with each other, they must first visit a fixed AP. This network structure is called a single Jump network. In a wireless Mesh network, any wireless device node can act as a router at the same time, each node in the network can send and receive signals, and each node can communicate directly with one or more peer nodes. The armed fire police and naval and army combat teams need a decentralized network with a certain capacity and invulnerability, multi-hop extension, and adaptable to fast movemen...

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Problems solved by technology

[0003] Most of the existing MESH network protocols are based on a fixed networking environment, where the bandwidth of each hop changes slowly. In this scenario, the MESH routing protocol will only be sent when a packet needs to be sent or when a link is abnormal. frame, for link detection. This method is slow in route selection, and cannot predict changes in the network, and cannot achieve seamless switching. It is more of a network redundancy backup. When a network device fails, It is necessary to restore communication from other links within a certain period of time, and the network will be interrupted during the recovery of communication on the link

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