A Distributed Probabilistic-Coverage Node Scheduling Scheme for Large Wireless Sensor Networks

摘要：

In wireless sensor networks, coverage configuration is an important issue which can prolong the system lifetime significantly. Most of current literatures are based on physical coverage, i.e. deterministic detection model, which is inconsistent with the realistic application of wireless sensor networks. A distributed probabilistic coverage configuration protocol (DPCCP) is proposed in this paper. It adopts Neyman-Peason probabilistic detection model to decide whether nodes can be off or not. Our DPCCP guarantees that the system detection probability is maintained after turning off lots of unnecessary nodes. We extend LEACH by embedding DPCCP into LEACH (namely LEACHE) seamlessly without any modification of the original workflow. Simulation results show that DPCCP can effectively reduce the number of active sensor nodes, and LEACHE outperforms LEACH in terms of system lifetime and energy efficiency.

关键词： distributed probabilistic coverage wireless sonser networks

作者: Ying Tian Ying Wang Shu-Fang Zhang

作者单位: College of Information and Electric Engineering Dalian Maritime University Dalian 116026 China

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）