Research on Local Energy Multi-Path Topology Control Mechanism

In wireless sensor networks, energy efficiency is crucial to achieve satisfactory network lifetime. Compared with other nodes, the bottleneck nodes in WSN have much more impact on network lifetime. In this paper, firstly a heuristic relative neighborhood graph-quasi bottleneck (HRNG-QB) model is presented. In HRNG-QB, the concept of quasi- bottleneck nodes and how to determine them in UDG is introduced, then a heuristic mechanism is proposed to save single node consumption. Based on this topology, a local energy multi- path (LEMP) topology control algorithm is given, which uses local energy multi-path to coordinate nodes and leverage energy consumption of different nodes. Simulation result under NS2 show that LEMP can extend WSN lifetime effectively.