基于链路分组优先分配的多信道集中信道分配方法

针对无线Mesh网很容易受到干扰影响出现性能恶化的问题,提出了一种基于链路分组后根据所在组流量多少的情况优先分配的多信道分配方法。该方法首先对网络中所有的信道进行分组,将链路与组绑定,然后利用最大流最小割定理计算网络的关键链路,优先对关键链路所在的组进行分配信道。仿真结果表明,与一般的集中信道分配方法相比,该方法可以有效的增加网络的吞吐量和降低丢包率。

A central Channel Assignment Method based on the Priority of Link Groups

Aiming at the problem of interference from wireless communication, which leads to a large amount of packet loss rate and communication delay in wireless Mesh networks, we propose a channel assignment method based on the priority of link group. All links in wireless Mesh networks is divided into different groups and bound to different groups firstly in this method. Then critical links are computed by the max-flow and min- cut. In the end, we assign different channels to groups containing critical links with preference. The simulation experiment results show that the performance of wireless networks is improved efficiently, especially for network throughput and packet loss rate.