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基于功率控制的带状无线传感网连通性
引用本文:孙艳,陈健,陈惠民,金彦亮. 基于功率控制的带状无线传感网连通性[J]. 上海大学学报(自然科学版), 2008, 14(1): 15-18
作者姓名:孙艳  陈健  陈惠民  金彦亮
作者单位:上海大学 通信与信息工程学院,上海 200072
基金项目:上海市科委资助项目 , 上海市重点学科建设项目
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.

关 键 词:单向链路  功率控制  无线传感网  
文章编号:1007-2861(2008)01-0015-04
收稿时间:2006-11-08
修稿时间:2006-11-08

Connectivity of Power-Controlled Wireless Sensor Network with Linear Topology
SUN Yan,CHEN Jian,CHEN Hui-min,JIN Yan-liang. Connectivity of Power-Controlled Wireless Sensor Network with Linear Topology[J]. Journal of Shanghai University(Natural Science), 2008, 14(1): 15-18
Authors:SUN Yan  CHEN Jian  CHEN Hui-min  JIN Yan-liang
Affiliation:School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
Abstract: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.
Keywords:wireless sensor network   power control   wireless link unidirectivity
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