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

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Pages (from-to)1267-1270
Number of pages4
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Issue number5
Publication statusPublished - 2017 May
Externally publishedYes

Bibliographical note

Funding Information:
This work was, in part, supported by the core technology R&D project of the Agency for Defense Development, Korea (UD140076ED) and in part by Kwangwoon University in 2016.

Publisher Copyright:
© 2017 The Institute of Electronics, Information and Communication Engineers.


  • Channel identification
  • Line-of-sight (LOS)
  • Range measurement
  • Recalibration interval

ASJC Scopus subject areas

  • Signal Processing
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering
  • Applied Mathematics


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