无线Mesh网络一种基于拓扑的多射频多信道分配  

A Topology-based Multi-radio Multi-channel Assignment for Wireless Mesh Nerwork

作　　者：申冬冬[1] 邓飞其[1] 

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510640

出　　处：《贵州大学学报（自然科学版）》2009年第3期64-66,76,共4页Journal of Guizhou University:Natural Sciences

摘　　要：随着无线Mesh网络的发展,在网络中配置节点多射频多信道,提高信道资源的利用率,成为扩大网络容量的有效手段。提出了一种基于网络拓扑信息的集中式的多射频多信道分配算法,实现时将其分为信道分配计算和信道分配切换两个阶段。在信道分配计算阶段按优先级确保瓶颈链路的带宽需求,实现网络信道干扰最小;在信道分配切换阶段逐层实现切换,确保网络的连通。仿真结果显示,该信道分配算法可以有效地提升网络性能。With the development of the wireless mesh network （ WMN）, it is an effective way to improve the network capacity using the Multi-radio Multi-channel to increase the spatial reuse of the available wireless channels. In this paper, a centralized topology-based Multi-radio Multi-channel assignment was proposed, which was divided into the channel calculation phase and the channel switch phase. In the channel calculation phase, the bottleneck links＇bandwidth was ensured by its higher priority so as to minimize interference among nodes. In the channel switch phase, channel switch was done layer by layer to maximize connectivity among nodes. The simulation shows that the proposed algorithm can provide a large improvement of the WMN.

关 键 词：无线MESH网络 信道分配 多射频多信道 瓶颈链路 逐层分配和切换 

分 类 号：TN91[电子电信—通信与信息系统]