传感技术学报
傳感技術學報
전감기술학보
Journal of Transduction Technology
2015年
1期
107-114
,共8页
陈常超%孙力娟%韩崇%郭剑
陳常超%孫力娟%韓崇%郭劍
진상초%손력연%한숭%곽검
有向传感网络%节点调度%区域划分%p-覆盖
有嚮傳感網絡%節點調度%區域劃分%p-覆蓋
유향전감망락%절점조도%구역화분%p-복개
directional sensor networks%sensor schedule algorithm%area divided%p-percent coverage
本文研究了分块区域p-覆盖的有向传感网节点调度问题,并提出了一种有效延长网络生存时间的节点调度方案。将区域划分为拥有不同监测需求的子区域,从有向传感器节点感知模型出发,设计了基于网格划分的节点感知范围度量方法,并在此基础上提出了分布式分区域节点调度算法DSSA( Distributed Subarea Sensor-schedule Algorithm),该算法是一个选取最少数量的节点去对每一个子区域进行p-覆盖的分布式贪心算法。算法同时还考虑了整体网络的连通。通过仿真深入评估了DSSA算法的性能。对比实验结果表明,DSSA算法可以显著延长网络生存时间。
本文研究瞭分塊區域p-覆蓋的有嚮傳感網節點調度問題,併提齣瞭一種有效延長網絡生存時間的節點調度方案。將區域劃分為擁有不同鑑測需求的子區域,從有嚮傳感器節點感知模型齣髮,設計瞭基于網格劃分的節點感知範圍度量方法,併在此基礎上提齣瞭分佈式分區域節點調度算法DSSA( Distributed Subarea Sensor-schedule Algorithm),該算法是一箇選取最少數量的節點去對每一箇子區域進行p-覆蓋的分佈式貪心算法。算法同時還攷慮瞭整體網絡的連通。通過倣真深入評估瞭DSSA算法的性能。對比實驗結果錶明,DSSA算法可以顯著延長網絡生存時間。
본문연구료분괴구역p-복개적유향전감망절점조도문제,병제출료일충유효연장망락생존시간적절점조도방안。장구역화분위옹유불동감측수구적자구역,종유향전감기절점감지모형출발,설계료기우망격화분적절점감지범위도량방법,병재차기출상제출료분포식분구역절점조도산법DSSA( Distributed Subarea Sensor-schedule Algorithm),해산법시일개선취최소수량적절점거대매일개자구역진행p-복개적분포식탐심산법。산법동시환고필료정체망락적련통。통과방진심입평고료DSSA산법적성능。대비실험결과표명,DSSA산법가이현저연장망락생존시간。
In this paper,we study sensor scheduling problems for p-percent coverage area which is divided into different subareas. We propose a schedule to prolong the network lifetime. Based on different coverage requirement,we divide the initial whole area into different small subareas. Each subarea has its’ own coverage requirement p. Starting from the sen-sor model of directional sensor nodes,we propose an algorithm to describe node’s sensor area based on grid partition. Then we propose the Distributed Greed Subarea Scheduling Algorithm DSSA( Distributed Subarea Sensor-schedule Algo-rithm),which promises p-precent coverage for every subarea and use least number of nodes. This algorithm also consider network connectivity. The simulation results show that DSSA can prolong network lifetime significantly.