计算机系统应用
計算機繫統應用
계산궤계통응용
APPLICATIONS OF THE COMPUTER SYSTEMS
2014年
9期
158-161
,共4页
无线传感器网络%定位算法%网络分簇%协作规划
無線傳感器網絡%定位算法%網絡分簇%協作規劃
무선전감기망락%정위산법%망락분족%협작규화
wireless sensor networks%positioning algorithm%network clustering%collaborative planning
为了提升无线传感器网络的定位精度，减少网络在进行定位运算时节点能量消耗过大等问题，提出一种基于分簇的多节点协作规划的无线传感器网络定位算法，该算法先通过将网络形成多个分簇，计算簇内节点间的相对距离，再通过协作规划的方法来提升节点坐标定位的准确度。得到簇内节点相对簇头的位置坐标后，再求出簇头相对于汇聚节点的位置坐标，从而实现在网络中对任意节点的精确定位。实验仿真结果表明，与基于加权质心和参考节点序列的定位算法相比，基于分簇的多节点协作规划的定位算法可以得到更好的定位精度。
為瞭提升無線傳感器網絡的定位精度，減少網絡在進行定位運算時節點能量消耗過大等問題，提齣一種基于分簇的多節點協作規劃的無線傳感器網絡定位算法，該算法先通過將網絡形成多箇分簇，計算簇內節點間的相對距離，再通過協作規劃的方法來提升節點坐標定位的準確度。得到簇內節點相對簇頭的位置坐標後，再求齣簇頭相對于彙聚節點的位置坐標，從而實現在網絡中對任意節點的精確定位。實驗倣真結果錶明，與基于加權質心和參攷節點序列的定位算法相比，基于分簇的多節點協作規劃的定位算法可以得到更好的定位精度。
위료제승무선전감기망락적정위정도，감소망락재진행정위운산시절점능량소모과대등문제，제출일충기우분족적다절점협작규화적무선전감기망락정위산법，해산법선통과장망락형성다개분족，계산족내절점간적상대거리，재통과협작규화적방법래제승절점좌표정위적준학도。득도족내절점상대족두적위치좌표후，재구출족두상대우회취절점적위치좌표，종이실현재망락중대임의절점적정학정위。실험방진결과표명，여기우가권질심화삼고절점서렬적정위산법상비，기우분족적다절점협작규화적정위산법가이득도경호적정위정도。
In order to improve the positioning accuracy of wireless sensor networks, reducing network node energy consumption during positioning operation, a clustering-based wireless sensor network localization algorithm of multi-node Collaborative planning is proposed. The algorithm first made the network to be multiple clusters, then it calculated the relative distance between cluster nodes, to improve the accuracy of the positioning coordinates of nodes through collaborative planning approach. After getting the position coordinates of the node relative cluster head within the cluster, then it calculated position coordinates of the cluster head relative to the sink node, in order to achieve precise positioning of any node in the network. Simulation results show that the positioning algorithm of the weighted centroid-based and the reference node sequence, a clustering-based localization algorithm of multi-node Collaborative planning can get better positioning accuracy.
