一种异构传感器网络的能量有效路由算法

无线传感器网络设计能量有效的路由算法是至关重要的.对于不同类型的传感器节点传输不同大小数据包信息以及拥有不同初始能量的异构传感器网络,本文提出了一种适合此传感器网络的D-REECR路由算法,此算法是在之前提出的REECR算法上改进而来.基于REECR没有考虑簇头在选择时的分布不均匀性,D-REECR将簇头闻的距离作为选择簇头的因素之一,与节点的剩余能量及能量消耗率一起作为选择簇头的依据.这样使各个簇大小基本一致,从而平衡各个节点的能量消耗,达到延长网络生命的目的.仿真结果显示,改进后的D-REECR算法比REECR算法在能量效率上大约提高5%～10%.

An Energy Efficient Routing Scheme for Heterogeneous Sensor Networks

To design.energy efficient routing scheme is very important in wireless sensor networks.This paper investi- gates a heterogeneous sensor network with two different types of nodes sending different length data packet to base sta- tion as well as possessing different initial energy,the D-REECR routing algorithm is proposed.D-REECR protocol im- proves REECR protocol proposed previously,which is an energy efficient routing protocol based on residual energy and energy consumption rate in heterogeneous sensor net...