基于均匀分簇的无线传感器网络寿命最大化理论分析

无线传感器网络路由协议的一个重要目标是均衡节点能量消耗并延长网络寿命.基于均匀分簇的无线传感器网络模型,对网络寿命最大化进行了理论分析.在此基础上,提出了一种改进的数据传输方式,有效地均衡了节点的能量消耗,并显著地延长了网络寿命.模拟实验表明,在网络半径一定时,通过合理地选取最优的簇半径,可以最大化网络寿命.改进数据传输方式后的最大网络寿命比改进前的提高了13%.最后,结合该领域当前研究现状,指出了基于分簇路由协议的最大网络寿命未来的研究重点.

Theoretical Analysis of Maximum Lifetime for Uniform Cluster-based Wireless Sensor Networks

A significant goal of routing protocol for wireless sensor networks is to balance energy consumption of sensor nodes and thus to prolong network lifetime. This paper conducts a theoretical analysis of maximum lifetime for wireless sensor networks based on uniform clustering. On this basis, an improved data transmission mode is proposed, which equalizes energy consumption of sensor nodes effectively and thus extends network lifetime significantly. Simulations show that reasonable selection of the optimal cluster radius, when network radius is determined, can maximize network lifetime. The maximum network lifetime after the improvement of data transmission mode is increased by 13% compared with the one before improvement. Finally, the future research focus in this area is pointed out.