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Interference-Aware Channel Assignment in Wireless Mesh Networks

机译：无线网状网络中的干扰感知信道分配

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摘要

The emerging IEEE 802.11-based Wireless Mesh Networks (WMNs) suffer of poor performance in terms of throughput. The use of multi-hop paths to relay the traffic raises the problems of intra-flow and inter-flow interference in the wireless backbone. A possible solution to this problem is exploiting a multi-channel framework. In this context, we develop an innovative interfere-ence model that permits to take into account the actual signal power received from each interference source, the interference produced by sources external to the WMN, the link utilization factor and directive antennas. Starting from this new model, we propose a channel assignment algorithm for multi-radio WMNs which is based on graph theory. Its performance is evaluated through simulations, which show a great improvement over existing channel assignment algorithms.
机译：新兴的基于IEEE 802.11的无线网状网络（WMN）的吞吐量方面表现不佳。使用多跳路径中继流量会引起无线主干网中流内和流间干扰的问题。解决此问题的可能方法是利用多渠道框架。在这种情况下，我们开发了一种创新的干扰模型，该模型可以考虑从每个干扰源接收到的实际信号功率，WMN外部源产生的干扰，链路利用率和定向天线。从这个新模型开始，我们提出了一种基于图论的多无线WMN信道分配算法。通过仿真评估了其性能，与现有的信道分配算法相比，它显示出很大的改进。

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