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Paper Abstract and Keywords
Presentation 2017-11-08 15:55
Accuracy enhancement method for AoA based 3D positioning with two base stations
Xiao Peng, Naoto Ishii (NEC) RCS2017-216
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) 3D positioning / AoA / array antennas / RSS ratio / dilution of precision / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 284, RCS2017-216, pp. 63-68, Nov. 2017.
Paper # RCS2017-216 
Date of Issue 2017-11-01 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee AP RCS  
Conference Date 2017-11-08 - 2017-11-10 
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. 
Paper Information
Registration To RCS 
Conference Code 2017-11-AP-RCS 
Language English 
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 positioning  
Keyword(2) AoA  
Keyword(3) array antennas  
Keyword(4) RSS ratio  
Keyword(5) dilution 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)
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Date Time 2017-11-08 15:55:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2017-216 
Volume (vol) IEICE-117 
Number (no) no.284 
Page pp.63-68 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-11-01 

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