计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
32期
72-74,103
,共4页
无线传感器网络%定位精度%粒子群优化算法%节点定位
無線傳感器網絡%定位精度%粒子群優化算法%節點定位
무선전감기망락%정위정도%입자군우화산법%절점정위
wireless sensor network%positioning accuracy%Particle Swarm Optimization(PSO )%node-positioning
已提出的无线传感器网络节点的定位算法中大部分是针对二维网络,为了提高无线传感器网络节点的定位精度,提出应用粒子群优化实现无线传感器网络定位.该算法依据信标节点相对于未知节点的几何位置并利用粒子群优化算法估算未知节点的几何位置.通过仿真,并与最小二乘法比较,结果表明该算法能在不增加体积、成本、通信功耗的情况下,有效的提高节点的定位精度.
已提齣的無線傳感器網絡節點的定位算法中大部分是針對二維網絡,為瞭提高無線傳感器網絡節點的定位精度,提齣應用粒子群優化實現無線傳感器網絡定位.該算法依據信標節點相對于未知節點的幾何位置併利用粒子群優化算法估算未知節點的幾何位置.通過倣真,併與最小二乘法比較,結果錶明該算法能在不增加體積、成本、通信功耗的情況下,有效的提高節點的定位精度.
이제출적무선전감기망락절점적정위산법중대부분시침대이유망락,위료제고무선전감기망락절점적정위정도,제출응용입자군우화실현무선전감기망락정위.해산법의거신표절점상대우미지절점적궤하위치병이용입자군우화산법고산미지절점적궤하위치.통과방진,병여최소이승법비교,결과표명해산법능재불증가체적、성본、통신공모적정황하,유효적제고절점적정위정도.
Most previously proposed algorithms assume that nodes are deployed in planar area,however,these algorithms are unable to locate nodes of three-dimensional nets.For improving the positioning accuracy,this paper uses the Particle Swarm Optimization algorithm to achieve the positioning for wireless sensor networks.It computes the positions of unknown nodes using the Particle Swarm Optimization algorithms according to the positions of anchor nodes and unknown nodes.Through simulation and the least-squares method for the simulation results of the comparison,the results show that the algorithm can improve the node positioning accuracy effectively without increasing cubage,cost and power consumption.
