摘要
提出了基于弹簧系数和接收信号强度指示的DV-Hop的改进算法(SCRDH)。将节点与锚节点间最短路径抽象成弹簧模型,利用弹簧模型改进DV-Hop全网平均跳距和节点之间最小跳数的取值方法,并通过增加全网弹簧系数来提高定位精度。仿真结果表明:SCRDH算法的定位误差在一定条件下可以达到12%明显优于DV-Hop算法。
Distance vector hop(DV-Hop)improved algorithm,spring coefficient and RSSI DV-Hop(SCRDH)localization algorithm based on spring coefficient and received signal strength indication is proposed.The algorithm abstracts the shortest path between nodes and anchor nodes into spring model,and uses the spring model to improve dereferencing method of DV-Hop whole network average hop distance and minimum number of hops between nodes,and also improve the positioning precision by increasing coefficient of spring of whole network.Simulation results show the localization error of SCRDH algorithm can reach 12%under certain conditions,which is prior to DV-Hop algorithm.
作者
朱慧勇
单志龙
ZHU Huiyong;SHAN Zhilong(Traction Power Department,Xi’an Railway Vocational&Techical Iinstitute,Xi’an 710026,China;School of Computer,South China Normal University,Guangzhou 510631,China)
出处
《传感器与微系统》
CSCD
2019年第6期126-128,132,共4页
Transducer and Microsystem Technologies
