TOA Based Recalibration Systems for Improving LOS/NLOS Identification

Yu Min HWANG  Yuchan SONG  Kwang Yul KIM  Yong Sin KIM  Jae Seang LEE  Yoan SHIN  Jin Young KIM  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E100-A   No.5   pp.1267-1270
Publication Date: 2017/05/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E100.A.1267
Type of Manuscript: LETTER
Category: Communication Theory and Signals
line-of-sight (LOS),  channel identification,  range measurement,  recalibration interval,  

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In this paper, we propose a non-cooperative line-of-sight (LOS)/non-LOS channel identification algorithm with single node channel measurements based on time-of-arrival statistics. In order to improve the accuracy of channel identification, we adopt a recalibration interval in terms of measured distance to the proposed algorithm. Experimental results are presented in terms of identification probability and recalibration interval. The proposed algorithm involves a trade-off between the channel identification quality and the recalibration rate. However, depending on the recalibration interval, it is possible to greatly improve the sensitivity of the channel identification system.