计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
23期
52-55
,共4页
无线传感网络%节点定位%多子群粒子群优化算法%DV-Hop算法
無線傳感網絡%節點定位%多子群粒子群優化算法%DV-Hop算法
무선전감망락%절점정위%다자군입자군우화산법%DV-Hop산법
wireless sensor network%node localization%Multi-subpopulation Particle Swarm Optimization(MPSO)algorithm%DV-Hop algorithm
节点定位技术是无线传感器网络的关键技术,为减小DV-Hop算法的节点定位误差,提出一种多子群粒子群(MPSO)算法优化DV-Hop的节点定位算法(MPSO-DV-Hop)。通过设置门限值修正节点间的跳数,提高了跳段距离估算精度,DV-Hop的第3阶段引入MPSO算法,对节点定位误差进行校正,通过引入多子群加快算法收敛速度,提高DV-Hop算法的节点定位精度,在MATLAB2008平台上对算法仿真分析。结果表明,MPSO-DV-Hop算法在不增加成本情况下,提高了传感器的节点定位精度,具有较高的应用价值。
節點定位技術是無線傳感器網絡的關鍵技術,為減小DV-Hop算法的節點定位誤差,提齣一種多子群粒子群(MPSO)算法優化DV-Hop的節點定位算法(MPSO-DV-Hop)。通過設置門限值脩正節點間的跳數,提高瞭跳段距離估算精度,DV-Hop的第3階段引入MPSO算法,對節點定位誤差進行校正,通過引入多子群加快算法收斂速度,提高DV-Hop算法的節點定位精度,在MATLAB2008平檯上對算法倣真分析。結果錶明,MPSO-DV-Hop算法在不增加成本情況下,提高瞭傳感器的節點定位精度,具有較高的應用價值。
절점정위기술시무선전감기망락적관건기술,위감소DV-Hop산법적절점정위오차,제출일충다자군입자군(MPSO)산법우화DV-Hop적절점정위산법(MPSO-DV-Hop)。통과설치문한치수정절점간적도수,제고료도단거리고산정도,DV-Hop적제3계단인입MPSO산법,대절점정위오차진행교정,통과인입다자군가쾌산법수렴속도,제고DV-Hop산법적절점정위정도,재MATLAB2008평태상대산법방진분석。결과표명,MPSO-DV-Hop산법재불증가성본정황하,제고료전감기적절점정위정도,구유교고적응용개치。
Localization is one of most important technolony of wireless sensor network, in order to reduce the error of node localization for DV-Hop algorithm in wireless sensor networks, a node localization algorithm based on Multi-population Particle Swarm Optimization(MPSO)algorithm and DV-Hop algorithm is proposed. The hops between nodes are modified by threshold value to improve the estimating accuracy of the hop distance, and then in the third stage of DV-Hop algorithm which MPSO algorithm is used to correct the localization error, the simulation analysis of MPSO-DV-Hop algorithm is carried out on MATLAB2008. The results show that the algorithm can improve the localization accuracy of the sensor without increasing cost situation. It has a high pratical value.