LANDMARC Localization Algorithm Based on Weight Optimization

被引:0
作者
HU Bing [1 ]
PENG Huijun [1 ]
SUN Zhixin [1 ]
机构
[1] Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education,Nanjing University of Posts and Telecommunications
基金
中国国家自然科学基金;
关键词
Location identification based on dynamic active RFID calibration(LANDMARC) system; Radio frequency identification(RFID); Indoor localization; Weight optimization;
D O I
暂无
中图分类号
TN92 [无线通信];
学科分类号
080402 ; 080904 ; 0810 ; 081001 ;
摘要
In order to solve the problem that the difference of Received signal strength(RSS) between tags will become large when tags are close to the reader, which exists in LANDMARC system, a LANDMARC localization algorithm based on weight optimization is proposed in the paper. We optimize the weight by redefining the formulas of in-weight and ex-weight. In-weight formula is discussed under the free space propagation model. The definition of ex-weight is obtained by analyzing the relationship between RSS and distance under the log-distance path loss model. We evaluate the performance of the proposed algorithm and compare it with the algorithm based on normalized weight. The simulation results show the superior performance of the proposed algorithm in terms of location accuracy.
引用
收藏
页码:1291 / 1296
页数:6
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