Abstract: Routing protocol is an important part of wireless sensor networks, the routing algorithm plays a crucial role in routing protocols. In order to reduce energy consumption and prolong the network lifetime, LEACH algorithm based on node self-scheduling is proposed. The algorithm considers the network connectivity and coverage, determines the connected cover set to realize node self-scheduling. The NS2 simulation includes time-energy consumption and time-numbers of living nodes. The results show that the algorithm can reduce energy costs and prolong the network lifetime.

Key words: wireless sensor network, LEACH routing protocol, self-scheduling, network performance