摘要
HWMP提供了两种路由模式,分别是以树状路由(TBR)为基础的先应路由模式和以AODV为基础的按需路由模式。然而这个协议存在着许多问题,如可扩展性较差、效率较低、根是网络故障点,当网络业务繁重时,数据包的碰撞和丢失增加。提出一种混合无线网状网协议的改进算法来解决以上问题。在Mesh网络内部,改进后的协议能够使源节点快速地计算出到任意目的节点的最优路径,同时也将先应路由模式和按需路由模式相结合以适用于所有传输环境。从仿真结果可看出,改进后的协议能在数据包到达率、平均端到端时延和吞吐量指标达到更好的性能。
HWMP provides two routing modes,proactive mode of tree-based routing protocol and on-demand mode of AODV routing protocol.There are a lot of problems in this protocol,such as low expansibility,efficiency and the root is the weak point.When the traffic is heavy,the collision and loss of data packets will increase.This paper proposed an improved algorithm based on hybrid wireless Mesh protocol to solve above problems.In the Mesh network,the source node could calculate the best-metric route to any destination quickly when used the proposed algorithm.The improved protocol combined proactive mode with on-demand mode to apply to all transmission environment.The simulation results reveal that the improved protocol gets better performance on packet delivery rate,average end-to-end delay and throughput.
出处
《计算机应用研究》
CSCD
北大核心
2011年第5期1846-1849,共4页
Application Research of Computers
基金
重庆市教委自然科学基金资助项目(KJ080507)
关键词
无线网状网
混合无线网状网协议
树状路由
先应模式
按需模式
wireless Mesh network
HWMP（hybrid wireless Mesh protocol）
tree-based routing
proactive mode
on-demand mode
