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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.
Aiming at the problem of maximizing the lifetime of wireless sensor networks, the first node failure in the network is the definition of the network lifetime which terminates the network lifetime, and the network lifetime when the network lifetime is maximized is studied. It is concluded that for nodes whose transmission power can be adjusted , And the maximization of lifetime is the network lifetime when the energy is limited in the communication range.According to this conclusion, this paper proposes a WSN lifetime maximization routing algorithm (LLTMR), which uses the geographic location information and the power control , The local information is used to maximize the lifetime of the network.Finally, the performance of LLTMR is simulated and the simulation results show that the network lifetime of LLTMR is superior to the network lifetime of routing algorithms such as MEC, LTMCR and OMM.