Routing model based on service degree and residual energy in WSN

Abstract

Energy constraint of sensor nodes is a key problem in WSN. Energy-based routing mechanism can significantly prolong the lifetime of sensor networks, but the current researches do not consider the number of service objects of a senor node. In this paper, we propose a routing model based on service degree and residual energy, named SERM. We put forward the node service degree to represent the service scale of some node, and the path service efficiency to show the path’s service capability. Then, a multi-path transmission system of wireless sensor networks is designed based on the 2-dimension: the service degree and the residual energy of nodes. Finally, the simulation experiments using OPNET prove that SERM can prolong the network lifetime and collect more sensor data.