无线网状网技术与应用

无线网状网(WMNs)由网状路由器节点和客户机节点组成,其中的网状路由器节点组成了无线网状网的网络骨干,其移动性很小。他们一起为无线网状网和其他常规无线网络的客户机节点提供网络的无线接入。WMNs技术结合了中心式控制的蜂窝网与分布式控制的无线自组织网的优点,可有效克服这两种技术的缺陷并显著提高无线网络的性能,已经成为下一代无线通信网络的研究热点之一。WMNs可为无线个域网、局域网、校园网、城域网的一系列应用提供高速无线宽带接入服务。虽然目前WMNs技术发展很快,但其协议栈各层仍存在许多有待研究的课题。首先简要介绍了无线网状网的结构与特点;随后重点分析了其主要的几个应用领域;最后探讨了WMNs各协议层的研究现状与关键技术,并分析了该技术存在的问题及未来的研究方向。

Techniques and Applications in Wireless Mesh Networks

Wireless Mesh Networks(WMN) consist of mesh routers and mesh clients,where mesh routers have minimal mobility and form the backbone of WMNs.They provide network access for both mesh and conventional clients.WMNs are anticipated to resolve the limitations and to significantly improve the performance of wireless Ad Hoc networks and mobile cellular networks.They are undergoing rapid progress and inspiring numerous deployments.WMNs will deliver wireless broadband services access for a large variety of applications in personal,local,campus,and metropolitan areas.Despite recent advances in WMNs,many research challenges remain in all protocol layers.This paper presents a detailed study on recent advances and application scenarios in WMNs,followed by discussing the system architectures and characteristics briefly.Finally,recent research and advanced techniques of each protocol layer are described,and some open issues are analyzed.