基于无线传感器网络的传输距离控制方法  

Transmission Distance Controlling Method of Wireless Sensor Networks

作　　者：殷贞玲[1] 王汝传[1] 黄海平[1] 孙力娟[1] 

机构地区：[1]南京邮电大学计算机学院,南京210003

出　　处：《计算机科学》2010年第6期97-101,共5页Computer Science

基　　金：国家自然科学基金(60973139;60773041);江苏省自然科学基金(BK2008451);国家高科技863项目(2007AA01Z404;2007AA01Z478);2006江苏省软件专项;现代通信国家重点实验室基金(9140C1105040805);国家和江苏省博士后基金(0801019C;20090451240);江苏高校科技创新计划项目(CX08B-086Z);江苏省六大高峰人才项目(2008118)资助

摘　　要：在传感器节点受到能量严重制约的情况下,如何合理地选择自适应拓扑变化的路由协议,有效地控制节点传输半径来提高系统的整体性能,成为当前无线传感器网络研究领域的热点问题之一。在基于RSSI测距技术的基础上,引入了3种传输距离控制策略,同时结合时延和能耗这两个指标,对3种传输策略进行了比较。仿真结果表明,动态选择传输半径可显著提高网络的整体性能,延长网络的生命周期,并减少节点能耗和传输时延。In the case of the restrictions of energy on wireless sensor nodes, how to choose a reasonable routing protocol of adaptive topology change and control transmission radius effectively to improve the whole performance of the sensor networks becomes the issue on current research fields. Based on RSSI ranging technology, this novel introduced and compared three transmission distance control strategies, which utilizes time-delay and energy-comsumption as the reference index Simulation results show that, choosing transmission radius dynamically can obviously improve the whole performance of the system,prolong the lifetime of the network and decrease the energy consumption and time delay of the sensor nodes.

关 键 词：无线传感器网络 路由 传输距离控制 传输半径 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]