摘要
针对无线传感器网络寿命最大化问题,基于网络中第一个节点失效即为网络寿命终止的网络寿命定义,研究了网络寿命最大化时的网络寿命.从而得到结论:对于节点发送功率可以调整的网络,寿命最大化是受限通信范围能量均衡时的网络寿命.根据此结论,提出一种WSN寿命最大化路由算法——本地化寿命最大化路由(LLTMR).LLTMR利用地理位置信息,结合功率控制,利用本地信息达到网络寿命的最大化.最后,对LLTMR的性能进行了仿真分析,仿真结果表明,LLTMR的网络寿命优于MEC,LTMCR和OMM等路由算法的网络寿命.
Aimed at the lifetime maximizing in wireless sensor network(WSN), the lifetime of lifetime maximizing (LTM) routing was researched according to the definition that the network is disabled if its any node is invalid. It is concluded that the energy balancing of limiting communication range can maximize the network lifetime for the power-adjustable network. Based on this conclusion, lifetime maximizing routing algorithm localized lifetime maximizing routing(LLTMR)is proposed. LLTMR gets to network lifetime maximizing with geographic location information and power control, and LLTMR only utilizes local information. The simulation results show that the network lifetime of LLTMR is better than MEC (minimum energy consuming routing), LTMCR and OMM (online power-aware routing with max-min zPmin).
出处
《华中科技大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2009年第12期25-28,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(60472064)
CNGI示范工程资助项目(CNGI-04-10-1D)
关键词
无线传感器网络
能量有效路由
能量均衡
网络寿命
地理路由
寿命最大化路由
wireless sensor network
energy efficient routing
energy balancing
network lifetime
geographical routing
lifetime maximizing routing