Channel allocation method in multi-radio frequency multi-channel wireless Mesh network

Abstract

The invention discloses a channel allocation method in a multi-radio frequency multi-channel wireless Mesh network. The channel allocation method comprises steps that a wireless Mesh network topological structure comprising orthogonal channels used for network allocation and a neighbor node set of various nodes are established; the channel allocation of the radio frequencies of the network nodes is carried out, and one node of the network is selected, and is set to be a current node, and by considering the current node and the channel allocation condition of the radio frequency of every node in the neighbor node set of the current node, different processing ways are selected according to the possible scene states of the two nodes, and therefore the channel allocation corresponding to different radio frequencies of all of the nodes is determined sequentially. The new channel allocation method in the multi-radio frequency multi-channel wireless Mesh network is advantageous in that objects of better inhibiting inter-channel interferences and improving the integral performance of the wireless Mesh network are realized.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a channel allocation method in a multi-radio multi-channel wireless Mesh network. Background technique [0002] The wireless Mesh network is a multi-hop, self-organizing, self-configuring network. The MP (Mesh Point routing node), MAP (Mesh Access Point access point) and MPP (Mesh Portal Point gateway node) in the Mesh network pass through multi-hop connection and data transfer. The multi-radio multi-channel wireless mesh network is an advanced technical form of the wireless mesh network. The channel allocation technology in the network can use a certain channel allocation scheme to reduce the interference between channels, significantly improve the throughput of the wireless mesh network, and reduce the transmission rate. Latency to meet people's increasing demand for bandwidth. How to allocate channels reasonably in a multi-radio multi-channel wireless mesh network has ...

AI Technical Summary

Problems solved by technology

The computational overhead of BFCA is exponentially related to the number of network nodes, and the amount of calculation increases rapidly with the increase of the number of nodes, so it is more suitable for small networks; The performance of the delay and packet loss rate is not outstanding; the CCA method is specially designed for the grid wireless Mesh network, which allocates channels based on the conflict graph and TID (total interference), but the main problem is that it cannot control the channel in use can lead to overuse of a channel

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