一种基于能量受限的移动sink数据收集策略  

A data collection strategy based on energy-constrained mobile sink in WSNs

作　　者：廖翊丞[1] 唐秋玲[1] 岳岫峪[1] 李贤[1] 郑莉莉[1] 

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2013年第5期1092-1099,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(60974120;61004123);广西教育厅科研基金资助项目(200911LX19)

摘　　要：针对无线传感器网络中基于移动sink的节能数据收集问题,综合考虑传感器节点和移动sink的能耗,提出一种基于能量受限的移动sink数据收集策略(DC-ECMS)。DC-ECMS包括3个阶段:①采用图论中最小支配集思想构建sink的驻留点;②采用蚁群算法规划sink访问驻留点的巡游路径;③sink沿规划路径周期性进行数据收集。仿真实验结果表明,DC-ECMS可有效延长网络寿命和提高网络的能量利用率,并且可扩展为多个sink进行数据收集,进一步延长网络寿命。The issue of energy-efficient data collection based on mobile sink in wireless sensor net- works is studied. Considering synthetically the energy consumption of sensor nodes and mobile sink, a data collection strategy based on energy-constrained mobile sink （DC-ECMS） is proposed. DC-EC- MS consists of three phases ： ① a number of sojourn points are selected through minimum dominating set in graph theory; ② a cruise path for mobile sink is planned through ant colony algorithm （ACA） ; ③ the sink will travel along the planned path periodically and collect data at each sojourn point. The simulation results show that DC-ECMS can effectively prolong the network lifetime and im- prove the energy efficiency; moreover, it can be extended to multiple sinks for data collection, pro- longing the network lifetime further.

关 键 词：无线传感器网络 数据收集 移动SINK 能量受限 网络寿命 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]