WSN中一种最优的汇聚节点移动方案  

An Optimal Sink Node Movement Scheme in Wireless Sensor Network

作　　者：曲文虎[1,2] 谷雨[1] 屈玉贵[1] 管彬[3] 

机构地区：[1]中国科学技术大学电子工程与信息科学系 [2]炮兵学院计算中心 [3]中国人民解放军77608部队

出　　处：《通信技术》2010年第8期9-11,共3页Communications Technology

基　　金：国家863计划项目(编号:2007AA01Z428;2009AA01Z148)

摘　　要：研究了无线传感器网络中,如何在不同的候选位置放置数据汇聚节点来最大化网络生命周期。通过定义"放置模式"这一概念,对数据流通模式进行分类,从而从量级上降低了需要调度的因素的数目。基于这样的理念,对问题建立了线性优化模型,来构建一种最佳的放置策略。最后,通过具体的试验验证了提出方法的有效性,说明了即使使用一个移动位置受限的汇聚节点,也会极大地提升网络生命周期。This paper addresses the problem of scheduling mobile sink nodes among different candidate locations, thus to maximize network lifetime in wireless sensor network. A novel concept named placement pattern （PP） is proposed to bound the traffic patterns with candidate locations, which could significantly decrease the number of elements to be scheduled. Then this sink node placement problem is formulated by using linear programming techniques based on PP concept. Finally, an optimal placement schedule is constructed in the light of LP solution. Experiment results indicate that the proposed scheme is effective, and even sink node with limited mobility would greatly enhance the lifetime of wireless sensor network.

关 键 词：无线传感器网络 放置模式 汇聚节点 网络生命周期 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]