WMSNs中目标覆盖算法与通信策略研究  

Study of target coverage algorithm and communication strategy in WMSNs

作　　者：王晓晨[1] 冯秀芳[1] 辛英[1] 

机构地区：[1]太原理工大学计算机科学与技术学院,山西太原030024

出　　处：《传感器与微系统》2013年第8期32-34,38,共4页Transducer and Microsystem Technologies

基　　金：山西省回国留学人员科研资助项目(2011-029);山西省科技基础条件平台建设项目(20110910003-0103)

摘　　要：在无线多媒体传感器网络(WMSNs)中,覆盖控制是一个基本问题,反映了无线传感器网络(WSNs)对外部世界的感知能力。基于WMSNs的有向感知模型,对基于优先级的目标覆盖算法研究。针对贪婪算法和改进的贪婪算法具有局部最优性且没有考虑网络中目标的覆盖度的问题进行改进,尽量照顾覆盖边缘的关键节点,提出了基于优先级的方向优化算法。针对WMSNs通信的高宽带需求,模拟生物的动态平衡特性,为WMSNs提出了动态平衡自主通信算法,使传感器节点能自主合作、有效地进行的事件信号通信。一系列仿真实验证明了算法在应用中的有效性。In wireless multimedia sensor networks（WMSNs）,coverage control is a basic problem,which reflects sensing ability of WMSNs on outside world.Directions optimization algorithm based on priority in view of directional sensing model of WMSNs is studied.Aiming at problem that greedy algorithms（GA）and enhance greedy algorithms（EGA）have local optimization and without considering target coverage,improve the algorithm,try to consider key nodes that cover edges,put forward directions optimization algorithm based on priority.Aiming at high bandwidth requirements for communication in WMSNs,simulate biologic homeostasis property,propose homeostasis autonomous communication algorithm for WMSNs,sensor nodes can auto cooperation,take event signal communication effectively.A series of simulation experiments prove the effectiveness of algorithms in application.

关 键 词：无线多媒体传感器网络 覆盖增强 方向优化 自主通信 动态平衡 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]