A method for allocating partially intersecting channels in a multi-radio multi-channel wireless mesh network

Abstract

The invention discloses a method for allocating intersecting channels in a multi-radio multi-channel wireless mesh network, comprising the following steps: S1. Calculate the number of neighbor nodes of each node and the distance between each node and a gateway node, and each node calculates the number of its own neighbor nodes and The distance from the gateway node is sent to the nodes within the range of two hops; S2. Calculate the channel allocation priority of all nodes, determine the order in which each node allocates channels, arrange the priority of each node in ascending order, and the channel allocation priority The smaller the value, the higher the priority of the corresponding node; S3. Each node allocates channels according to the priority of channel allocation; S4. Each node selects a channel; and connectivity strength are sent to the nodes within two hops. The present invention is applicable to the scene of intersecting channels of multiple radio frequency parts, can be applied to the scene of intersecting channels of two radio frequency parts, does not need a common channel, and reduces the radio frequency cost.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for allocating partially intersecting channels of a multi-radio multi-channel wireless mesh network. Background technique [0002] In the wireless Mesh network, the interference model is divided into two different interference models: physical interference model and protocol interference model. In previous articles, for a multi-radio multi-channel network using orthogonal channels, the interference model generally adopts the traditional link-oriented thinking, that is, link interference model, link conflict diagram, and so on. This makes sense, because in a network using orthogonal channels, there is no interference between different channels. For example, in an IEEE802.11b / g network, the available orthogonal channels are only 1, 6, and 11. Therefore, in a multi-radio multi-channel network that generally uses orthogonal channels, the number of radio frequ...

AI Technical Summary

Problems solved by technology

In the past, it has been proved that using partially intersecting channels can obtain higher network capacity than orthogonal channels, so partially intersecting channels are used for allocation, but the advantages of using partially intersecting channels are not considered in essence.

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