计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
22期
95-99
,共5页
吴曦德%方杰%杨世杰%周庆标
吳晞德%方傑%楊世傑%週慶標
오희덕%방걸%양세걸%주경표
无线传感器网络%DV-Hop算法%分群粒子群优化算法%定位精度
無線傳感器網絡%DV-Hop算法%分群粒子群優化算法%定位精度
무선전감기망락%DV-Hop산법%분군입자군우화산법%정위정도
wireless sensor network%DV-Hop algorithm%grouping particle swarm optimization algorithm%localization precision
为了减少无线传感器网络节点的定位误差，提出一种分群粒子群优化（GPSO）算法修正DV-Hop误差的传感器节点定位方法（GPSO-DVHop）。提出一种节点距离修正值策略，减少未知节点与锚节点间距离的估计误差，采用GPSO算法修正DV-Hop的节点定位误差，最后在Matlab 2012平台上对算法性能仿真分析。相对于对比传感器定位方法，GPSO-DVHop提高了传感器节点定位精度，仿真结果验证了GPSO-DVHop的有效性。
為瞭減少無線傳感器網絡節點的定位誤差，提齣一種分群粒子群優化（GPSO）算法脩正DV-Hop誤差的傳感器節點定位方法（GPSO-DVHop）。提齣一種節點距離脩正值策略，減少未知節點與錨節點間距離的估計誤差，採用GPSO算法脩正DV-Hop的節點定位誤差，最後在Matlab 2012平檯上對算法性能倣真分析。相對于對比傳感器定位方法，GPSO-DVHop提高瞭傳感器節點定位精度，倣真結果驗證瞭GPSO-DVHop的有效性。
위료감소무선전감기망락절점적정위오차，제출일충분군입자군우화（GPSO）산법수정DV-Hop오차적전감기절점정위방법（GPSO-DVHop）。제출일충절점거리수정치책략，감소미지절점여묘절점간거리적고계오차，채용GPSO산법수정DV-Hop적절점정위오차，최후재Matlab 2012평태상대산법성능방진분석。상대우대비전감기정위방법，GPSO-DVHop제고료전감기절점정위정도，방진결과험증료GPSO-DVHop적유효성。
In order to reduce localization error of the wireless sensor network node, a novel localization method of the wireless sensor network node is proposed based on improved DV-Hop(GPSO-DVHop)which localization error is corrected by grouping particle swarm optimization(GPSO). A node distance correction strategy is introduced to reduce estimation error of the distance between unknown node and anchor node, and then the node localization error of DV-Hop algorithm is corrected by GPSO algo-rithm. The performance of the method is analyzed on Matlab 2012. Compared with other localization methods, the proposed method has improved localization accuracy of the sensor node, and the results show the effectiveness of the proposed method.
