The improvement of routing protocols in wireless sensor networks

The wireless sensor network is a type of the wireless ad-hoc networks. It is composed of nodes with limited battery power. Energy saving, energy efficiency, energy balance are important technologies to prolong service life of wireless sensor networks. This paper entirely analyzes LEACH routing protocol, and presents the advantages of multi-hop transmission, then combines them, finally suggests a novel routing protocol improvement NEW with a table which records sector IDs for nodes. It lets energy transmit among nodes more orderly. Simulation results show that the scheme can gain longer lifetime of wireless sensor network (WSN) than the LEACH protocol.