AN IMPROVED LOCALIZATION ALGORITHM BASED ON THE HOP-DISTANCE RELATIONSHIP IN A SHADOW FADING ENVIRONMENT

摘要：

This article analyzes the hop-distance relationship in a shadow fading environment. Assuming the sensor nodes are randomly deployed in a circular region according to a planar Poisson process, we present the close relationship between the hop counts and their geographic distance. An improved localization algorithm based on the hop-distance relationship, called ILA_HDR, has been proposed. The ILA_HDR uses the distance-vector flooding technique and determines the distance information from hop counts. Based on the relationship for hop counts and geographic distance, the weight for each distance measurement has been designed. The performance evaluation of ILA_HDR is given in term of average localization error by several simulations, and the results show that ILA_HDR performs better than least square (LS) method in a shadow fading environment.

关键词： wireless sensor network range-free localization hop-distance relationship the shadow fading environment

作者: Yanchao Niu Deyun Gao Hongke Zhang Ping Chen

作者单位: National Engineering Laboratory for Next Generation Internet Interconnection Devices,Beijing Jiaoton TEDA College, Nankai University, Tianjin, 300457, China

会议类型: 国际会议

会议名称: 2010 3rd IEEE International Conference on Broadband Network & Multimedia Technology(2010年第三届IEEE宽带网络与多媒体国际会议 IC-BNMT 2010)

会议地点: 北京

会议语种:英文

页码: 1094-1098

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）