无线Mesh网络中基于信道状态的动态信道分配算法研究

Channel-state-based dynamic channel assignment algorithm in multichannel wireless mesh networks

对多信道无线Mesh网络中的信道分配算法进行了分析,提出了一种基于信道状态的动态信道分配策略(channel-state-based dynamic channel assignment,CSDCA)。该算法利用控制信道交互的信息,通过Hello消息的交换、发送请求(request-to-send,RTS)和允许发送(clear-to-send,CTS)的信道协商、数据传输3个阶段实现信道的动态分配,并通过仿真分析验证了该算法对多信道无线Mesh网络(multichannel wireless mesh networks,MWMN)性能的提高。

Wireless mesh networks （WMNs） have emerged as a key technology for next-generation wireless networking. To improve the capacity of wireless mesh networks by exploiting multiple available channels, we propose a distributed channel assignment algorithm that is based on channel states. By the information of channel states and dealing with the information, the proposed channel assignment algorithm can increase throughput and reduce delay in wireless mesh networks.. In addition, through a performance study and the result of simulation, we show that the proposed algorithm can increase throughput and reduce delay in multichannel wireless mesh networks.