基于功率控制的带状无线传感网连通性  

Connectivity of Power-Controlled Wireless Sensor Network with Linear Topology

作　　者：孙艳[1] 陈健[1] 陈惠民[1] 金彦亮[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2008年第1期15-18,共4页Journal of Shanghai University:Natural Science Edition

基　　金：上海市科委重大项目子课题(05dz15004);上海市重点学科建设资助项目(T0102)

摘　　要：无线传感器网络节点能量有限,网络生存周期受限,这使得功率控制成为研究的热点.在带状拓扑情况下,离汇聚节点近的节点数据转发量大,能量消耗也快,成为网络的瓶颈.该文主要研究一种改进的功率控制算法,在增加瓶颈节点的生存时间的同时,保证上行数据传输的连通性和扩展下行数据传输功能,优化整个网络的性能.Due to energy limitation, wireless sensor networks are limited in lifespan, Therefore power consumption control has been a hot topic. In belt-shaped topology, relay nodes close to the sink must forward more data than those far from the sink. They inevitably consume more energy, therefore are exhausted quickly and become a bottleneck of the network. This paper aims to improve a radio range adjustment algorithm to increase lifespan of the bottlenecked nodes by ensuring network connectivity for uplink traffic and acceptance for downlink traffic.

关 键 词：无线传感网 功率控制 单向链路 

分 类 号：TN915[电子电信—通信与信息系统]