基于链路质量的无线传感器网络任播路由协议  

Anycast Routing Protocol in Wireless Sensor Networks Based on Link Quality

作　　者：徐昕[1,2] 顾云丽[1,2] 钱焕延[1] 

机构地区：[1]南京理工大学计算机科学与技术学院,南京210094 [2]南京信息工程大学计算机与软件学院,南京210044

出　　处：《计算机科学》2010年第4期99-102,116,共5页Computer Science

基　　金：国防科工委应用基础资金(JI300D004)资助

摘　　要：无线传感器网络(WSN)中,由于无线链路的链路质量问题,经常有传递失败导致重传耗费能量的现象出现。传统任播路由协议只以路由距离作为路由判据,而没有讨论链路质量问题,将其应用在WSN中会造成路由权重设置不合理。提出了基于链路质量的WSN任播路由协议,该协议在讨论链路质量的计算之上,以能耗均衡和系统能耗最小这两个因素决定任播路径的路由权重,并以参数α来权衡两者之间的关系。实验证明,在WSN中,相比传统任播路由协议,该协议能更有效地均衡能耗,减少系统能耗,从而优化网络生存期。In Wireless Sensor Networks（WSN）, there is the probability of transmission failure and energy waste for retransmission because of link quality problem. Routing criteria of conventional anycast routing protocols are based only on routing distance but not in consideration of link quality problem, it will lead to unreasonable routing weight setting if we apply those protocols in WSN. A WSN anycast routing protocol based on link quality was proposed. Calculation of link quality was discussed. The routing criterion of our protocol is based on the hybrid of load balancing and minimum total energy cost, and we balanced the two factors by parameter a. In contrast to conventional anycat routing protocols, experiment results show that performances in WSN are improved in terms of energy balancing and network energy consuming hence network lifetime is optimized.

关 键 词：无线传感器网络 任播 路由协议 链路质量 碰撞 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]