Energy Consumption Evaluation of Low Energy Adaptive Clustering Hierarchy Routing Protocol for Wireless Sensor Network

Wireless sensor network (WSN) is widely studied to be applied on the monitoring and control systems in various fields such as industrial, security, medical, and environmental monitoring. Constraints on the use of WSN is the limited power of every sensor node, so energy consumption efficiency become important issue in WSN. Routing is a function in WSN which consume enough energy. Routing protocols with the aim of achieving high Quality of Service (QoS) is generally not suitable for WSN. Without specific routing protocols with low energy consumption, WSN connectivity will be degraded. In this research, the energy consumption of Low-Energy Adaptive Clustering Hierarchy (LEACH) routing protocols for WSN system has evaluated by performing simulations using the software Network Simulator 2 (NS-2). Simulation results show that the number of clusters affect the level of energy consumption. Appropriate cluster number should be determined for achieving minimum energy consumption.