Channel switching mode generating and allocating method for multi-channel wireless radio multi-hop network

Abstract

The invention relates to a channel switching mode generation and distribution method for a multi-channel wireless multi-hop network, which comprises the steps of setting up a channel switching mode generation method to stipulate how to generate a channel switching mode; and distributing a channel switching mode for each node in the network by using a channel switching mode distribution method based on the generation method. The channel switching mode distribution method is carried out on the nodes in a distributive concurrent execution manner, and the nodes in the network are equally distributed into all available channels in each time slot together with the potential competitive nodes thereof by following the distributed channel switching mode. In the synchronous channel switching-based media access control method, the method can be used to ensure that in each time slot, the nodes in the network are equally distributed into all available channels together with the 2-hop neighbor nodes thereof, so that the network can obtain better collision domain division effect and higher degree of concurrent transmission, thereby effectively reducing the channel access time of nodes and message conflict.

Description

technical field [0001] The invention relates to wireless network communication technology, and specifically describes a method for generating and distributing channel switching modes for multi-channel wireless multi-hop networks. Background technique [0002] In recent years, wireless communication technology has developed rapidly. As a rapidly developing technology in the field of communication in recent years, wireless multi-hop networks have received more and more attention. The wireless multi-hop network uses distributed and self-organizing ideas to build the network, making the network more flexible and robust. [0003] In wireless multi-hop networks, there is channel competition between adjacent nodes working in the same frequency band. The competition of nodes for channels and the conflicts generated during competition seriously restrict the improvement of network performance. With the development of communication and electronic technology, many radio frequency har...

AI Technical Summary

Problems solved by technology

However, the method in which each node randomly generates its own channel switching pattern divides the collision domain in a completely probability-based manner, which is prone to underutilization of channels, that is, in some time slots, a large number of nodes are allocated to a few channels, making the competition intensity of these channels high, but at the same time, there are a large number of channels that are not used

Obviously, there is room for further improvement in the above method

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