多信道无线Mesh网络的路由协议  

Routing protocol in multi-channel wireless mesh networks

作　　者：彭易[1] 朱磊[1] 刘玲[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007

出　　处：《计算机应用》2011年第7期1928-1930,共3页journal of Computer Applications

基　　金：国家863计划项目(2009AA01Z243)

摘　　要：针对单径路由协议不能充分利用多信道无线Mesh网络的信道资源的问题,提出了一种基于拥塞控制的并行多径路由协议PMRP。该协议将一个数据流分配到多条路径同时传输,当所有路径都发生中断时,才重新寻找路由;并采取相应的拥塞感知技术,避免拥塞节点再转发新的数据流。仿真结果证明:与无线自组网按需平面距离矢量路由协议(AODV)协议相比,PMRP在网络负载较大时,能有效地减小端到端延迟,提高数据包的成功投递率,增加网络的整体吞吐量。In order to solve the problem that channel resource cannot be fully utilized by single-path routing protocol in multi-channel wireless mesh networks,a Parallel Multi-path Routing Protocol（PMRP） based on congestion control was proposed.This protocol spread a data flow over multiple paths and only re-found new route after all routes have broken.It prevented the congested node to transmit new data flow by utilizing congestion control mechanism.The simulation results demonstrate that,compared with Ad hoc On-demand Distance Vector Routing（AODV） routing protocol,PMRP can reduce the average end to end delay,and improve the data packet delivery ratio and the network throughput effectively.

关 键 词：多径路由 拥塞控制 信道接入 多信道 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]