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DELIC:一种高效节能的与节点位置无关的传感器网络覆盖协议
引用本文:毛莺池,刘明,陈力军,陈道蓄,谢立.DELIC:一种高效节能的与节点位置无关的传感器网络覆盖协议[J].计算机研究与发展,2006,43(2):187-195.
作者姓名:毛莺池  刘明  陈力军  陈道蓄  谢立
作者单位:1. 南京大学计算机软件新技术国家重点实验室,南京,210093;南京大学计算机科学与技术系,南京,210093;河海大学计算机及信息工程学院,南京,210098
2. 南京大学计算机软件新技术国家重点实验室,南京,210093;南京大学计算机科学与技术系,南京,210093
基金项目:国家科技攻关项目;科技部科研项目;中国科学院资助项目;国家自然科学基金
摘    要:现有的覆盖协议大多数都依赖于GPS、有向天线等基础设施或者定位机制,使节点获得其物理位置,这不仅成本高、能耗大,而且存在准确定位的问题.提出了一个分布的、高效节能、与节点位置无关的传感器网络覆盖协议(DELIC)+在DELIC协议中,节点与邻居交换信息并通过能量大小竞选工作节点,其他未竞选成功的节点关闭通信设备+模拟实验结果表明,DELIC协议不仅可以提供高质量的覆盖性能,而且具有良好的节能性能.DELIC协议性能超过OGDC,PEAS,GAF-like,SponsorArea协议.

关 键 词:无线传感器网络  覆盖  节能  状态调度
收稿时间:10 19 2004 12:00AM
修稿时间:2004-10-192005-01-27

A Distributed Energy-Efficient Location-Independent Coverage Protocol in Wireless Sensor Networks
Mao Yingchi,Liu Ming,Chen Lijun,Chen Daoxu,Xie Li.A Distributed Energy-Efficient Location-Independent Coverage Protocol in Wireless Sensor Networks[J].Journal of Computer Research and Development,2006,43(2):187-195.
Authors:Mao Yingchi  Liu Ming  Chen Lijun  Chen Daoxu  Xie Li
Affiliation:State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093; 2Department of Computer Science and Technology, Nanjing University, Nanjing 210093; 3 School of Computer and Information Engineering, Hehai University, Nanjing 210098
Abstract:One of the major challenges in constructing WSNs is to maintain long network lifetime as well as sufficient sensing area. In this paper, the broad problems of coverage in WSNs are discussed, and coverage protocols dependent on infrastructures (e.g., GPS, directional antennas, etc) or some localization schemes in the existing solutions are identified. To eliminate the reliance on infrastructure, a distributed energy-efficient location-independent coverage protocol (DELIC) is proposed, which aims to preserve coverage based on the local neighborhood information. Comparing its residual energy with its neighborhood, one node can independently make its decision to compete for becoming a working node. The simulation and analysis study demonstrate that the DELIC not only provides the high quality of area coverage and good scalability, but also provides better performance in the energy efficiency. The DELIC outperforms the PEAS, the GAF-like, the sponsor area and OGDC algorithm with respect to the quality of area coverage, total energy-consumption and energy-consumption balance.
Keywords:wireless sensor network  coverage  energy-efficiency  node state scheduling
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