Presentation 2017-11-08
Accuracy enhancement method for AoA based 3D positioning with two base stations
Xiao Peng, Naoto Ishii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In future cellular networks, large array antennas will be deployed in base stations (BSs) in order to increase the capacity and energy efficiency. This will make it possible to estimate the angle of arrival (AoA) more accurately in AoA based positioning. Because of limitations on BS deployment, there exist situations that only two BSs are available. When mobile station (MS) stays near the line between the two BSs, large estimation errors are caused by the so-called dilution of precision (DoP) effect. In this paper we propose an accuracy enhancement method that utilizes received signal strength (RSS) ratio in position estimation calibration for DoP effect. Through simulation, we find that calibration is needed when AoA is less than 8 degrees. Within this range, our proposal can reduce the 90-percentile position estimation error to about 1/6 of that in our previous calibration method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 3D positioningAoAarray antennasRSS ratiodilution of precision
Paper # RCS2017-216
Date of Issue 2017-11-01 (RCS)

Conference Information
Committee AP / RCS
Conference Date 2017/11/8(3days)
Place (in Japanese) (See Japanese page)
Place (in English) Fukuoka University
Topics (in Japanese) (See Japanese page)
Topics (in English) Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc.
Chair Jiro Hirokawa(Tokyo Tech.) / Hidekazu Murata(Kyoto Univ.)
Vice Chair Ryo Yamaguchi(SoftBank) / Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo)
Secretary Ryo Yamaguchi(NTT DoCoMo) / Yukitoshi Sanada(Saitama Univ.) / Eisuke Fukuda(Toshiba) / Satoshi Suyama(Hokkaido Univ.)
Assistant Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Accuracy enhancement method for AoA based 3D positioning with two base stations
Sub Title (in English)
Keyword(1) 3D positioningAoAarray antennasRSS ratiodilution of precision
1st Author's Name Xiao Peng
1st Author's Affiliation NEC Corporation(NEC)
2nd Author's Name Naoto Ishii
2nd Author's Affiliation NEC Corporation(NEC)
Date 2017-11-08
Paper # RCS2017-216
Volume (vol) vol.117
Number (no) RCS-284
Page pp.pp.63-68(RCS),
#Pages 6
Date of Issue 2017-11-01 (RCS)