认知无线Mesh网络中基于干扰模型的信道分配策略  

Channel assignment strategy based on interference model in cognitive wireless Mesh networks

作　　者：章国安[1,2] 顾金媛[1] 曹磊[1] 

机构地区：[1]南通大学电子信息学院,江苏南通226019 [2]东南大学移动通信国家重点实验室,南京210096

出　　处：《计算机应用研究》2010年第5期1914-1917,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(60872002);江苏省高校自然科学重大基础研究资助项目(07KJA51007);江苏省教育厅"青蓝工程"资助项目;东南大学移动通信国家重点实验室开放研究基金资助项目(W200912);江苏省普通高校研究生科研创新计划资助项目(CX09S_021Z);南通大学研究生科技创新计划资助项目(YKC09046)

摘　　要：从信道干扰的角度为认知无线Mesh网络提出一种新的信道分配策略。首先对网络进行分层并按层对节点设置不同的层数权值,以此来选择最佳路径,再利用信道干扰模型来选择最佳信道。新策略有效整合了路由和信道分配过程,通过路由的实现来协助节点的信道分配以获得整个网络的最优化性能。仿真结果表明,新算法相比于无线多信道网络中基于链接的信道分配算法,在时延、吞吐量上有明显的优势。This paper proposed a new channel assignment strategy based on channel interference model for the cognitive wireless Mesh networks （CogWMN）. In order to choose the best path, the strategy first stratified CogWMN and set the value of weights according to layers, and then chose the best channel based on channel interference model. The new strategy effectively combined routing and channel assignment methods. By the route to assist in the realization of channel allocation of nodes, the entire network obtained the optimum performance. Simulation results show that compared to the link-based channel allocation algorithm in wireless multi-channel network, the new algorithm has an obvious advantage in the performance of delay and throughput.

关 键 词：认知无线Mesh网 信道分配 路由 

分 类 号：TN92[电子电信—通信与信息系统]