An Improvement on Maximum Residual Energy Routing of Sensor Networks

Abstract

When Maximum Residual Energy Routing is adopted in actual battery-powered sensor networks, how to further improve the energy consumption in this protocol and prolong the system lifetime becomes a critical problem. In sensor networks where energy use maps directly affect the lifetime and overall performance, energy utilization is an important metric. In this study, we examine the Maximum Residual Energy Routing Protocol (MREP) and propose a new model for energy utilization in wireless network by considering the relationship between successful packet sending probability and node-distance. Based on this model, we develop a new method for improving MREP. Compared with previous model, the network energy usage is more uniform in the new model and the result is an increase of 20%~30% in system lifetime.