中文摘要：

本文针对目前无线传感器网络分簇路由协议存在的节点生存时间不长,能耗不均衡等问题,提出了一种基于圆环划分的无线传感器网络分簇路由协议（CRRP）。在网络中以Sink节点为圆心划分大小不等的圆环,建立不同环状区域的簇头节点的分布,改善整体能耗。针对LEACH协议的实现机制,论文提出的选取簇头节点的方法使得节点能耗更均衡。仿真结果表明,该路由协议可以有效地延长网络的生存周期。

英文摘要：

At present, cluster-based routing protocols of wireless sensor network aim at extending node survival time and balancing energy consumption among nodes. This paper proposes a ring-based clustering routing protocol （CRRP） for wireless sensor network. Sink node is assumed to be at the center of the network area, then the network area is divided into distinct rings around the center of sink node such that the distribution of cluster head nodes can help improve overall energy consumption. As for the principle of LEACH protocol, this paper suggests an efficient strategy to select cluster head nodes to balance energy consumption among nodes. The simulation result shows that the improved routing protocol can effectively extend the network life cycle.