一种基于移动无线传感器网的节能算法

An Energy-efficient Algorithm Based on Mobile Wireless Sensor Network

在传统的无线传感器网络(WSN)研究中假设传感器节点位置是固定的假设,忽略了节点位置变化对网络性能带来的影响。本文分析了节点位置变化所带来的问题,并针对这些问题提出了几点研究思路。再此基础上,提出了基于全网同步的节能算法EBSA算法:通过过去全网时间信息,避免节点位置变化对休眠调度机制的影响,减少了网络的能耗,延长了网络寿命。性能仿真表明,在节点位置变化的情况下,EBSA仍然可以保持较好的性能。

In traditional WSN protocol research,it is generally assumed that node is static,.Based on the analysis of mobility in wireless sensor networks,this paper researches the affect that mobility has to current WSN MAC protocols.A further research is conducted and several considerations are brought forward.On the basis of above analysis,EBSA algorithm is given.EBSA,with the help of global WSN time information,avoids the influence that the mobility has to activation/sleep schedule mechanism in WSN protocol.Analysis and simulation show that,EBSA algorithm display better performance in the mobile environment.