A novel energy-efficient clustering protocol based on specific location

Wireless sensor network consists of hundreds or thousands of tiny sensor nodes, which can monitor remote environment and it´s useful in military and civilian applications. The limitation of the batteries of sensor nodes necessitates that the energy efficiency is a key issue in WSN. We proposed a novel protocol LEACH-L based on the geographical location of nodes, which improves the LEACH on its clustering method, cluster-head selecting and the relay transmitting. It takes care of both residual energy and position of sensor nodes in cluster when chooses a cluster-head. Mathematic analysis and simulation show that the LEACH-L has better performance in the network lifetime, node energy consumption and network throughput.