无线mesh网络的拓扑控制算法研究  

Research of topology control algorithm in wireless mesh networks

作　　者：李佳[1] 周杰[1] 

机构地区：[1]华南理工大学计算机科学与工程学院,广州510006

出　　处：《计算机应用》2009年第12期3235-3237,3248,共4页journal of Computer Applications

基　　金：国家973计划项目(2003CB314805);国家CNGI项目(CNGI-04-13-2T);2005年粤港关键领域重点突破项目

摘　　要：针对无线mesh网络(WMN)中由于无线信号干扰造成的端到端吞吐量并不是很理想的问题,提出了一种通过以最小化最大冲突负载为策略构造无线mesh网络拓扑的拓扑控制算法。在形成网络拓扑之后,算法通过调整节点的传输功率到一个合理水平来降低干扰,从而提高信道的空间复用度以优化网络的吞吐量。最后以最大冲突域负载作为性能指标的仿真结果表明:通过拓扑控制能够提升无线mesh网络的吞吐量。In order to solve poor end-to-end throughput resulted from wireless signal interference in Wireless Mesh Networks （WMN）, a topology control algorithm was proposed. The algorithm was carried out by minimizing the maximum collision domain load to construct a network topology. The proposed algorithm reduced the interference to improve the spatial reuse of the channel by adjusting the transmission power of each node, which would give rise to the improved network throughput. Finally, the simulation results which used load of maximum collision domain as metric show that the performances of wireless mesh networks can be substantially improved by topology control.

关 键 词：无线MESH网络 拓扑控制 功率控制 负载 最大冲突域 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]