Device-free passive localization from signal subspace eigenvectors

Jihoon Hong, Tomoaki Ohtsuki

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Device-free passive (DFP) localization systems are a key solution for location-based services because they do not require any wireless device on a human body. Most of the existing DFP localization systems are based on the received signal strength (RSS) measurement only. However, the localization accuracy of RSS only-based systems is easily affected by the spatial and temporal variances of RSS due to multipath fading and noise, even in a static environment. In this paper, we propose a novel localization system for DFP using signal subspace eigenvectors from an antenna array. We present a fingerprinting technique using multiclass support vector machines (SVMs) based on a combination of array signal features with spatial and temporal averaging. We then evaluate the localization accuracy of our proposed system in different propagation environments: line-of-sight (LOS) and non-line-of-sight (NLOS). In addition, we analyze two types of receive antenna placement: centralized and distributed antennas. The experimental results show that the localization accuracy can be improved by the proposed system, particularly in the centralized antenna case. Moreover, they show that the proposed system can improve localization accuracy compared to the conventional RSS-only based system.

本文言語English
ホスト出版物のタイトル2014 IEEE Global Communications Conference, GLOBECOM 2014
出版社Institute of Electrical and Electronics Engineers Inc.
ページ430-435
ページ数6
ISBN(電子版)9781479935116
DOI
出版ステータスPublished - 2014 2 9
イベント2014 IEEE Global Communications Conference, GLOBECOM 2014 - Austin, United States
継続期間: 2014 12 82014 12 12

Other

Other2014 IEEE Global Communications Conference, GLOBECOM 2014
国/地域United States
CityAustin
Period14/12/814/12/12

ASJC Scopus subject areas

  • 電子工学および電気工学
  • コンピュータ ネットワークおよび通信
  • 通信

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