关键词: 无线传感器网络, 分簇路由协议, 链

Abstract: This paper proposes a new routing protocol for wireless sensor networks called Energy-efficient Chain-cluster Routing protocol（ECR） and introduce the main idea of the protocol architecture.This protocol uses the hybrid way to manage the networks，and it takes the advantages of both central control and distributed algorithm and forms a topology with two-hierarchical chains’ formation.ECR includes a simple but efficient cluster-head-leader selection criterion，which prolongs the time of the first node dying in the network and improves the energy efficiency.The advantage of ECR is demonstrated by the simulation of comparing with both Low-Energy Adaptive Clustering Hierarchy（LEACH） and Power-Efficient Gathering in Sensor Information System（PEGASIS）.

Key words: wireless sensor network, cluster routing protocol, chain