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Paper Abstract and Keywords
Presentation 2014-01-23 14:40
A HypothesisTesting Framework For Elevation Beamforming
Oussama Souihli, Yasuyuki Hatakawa, Satoshi Konishi (KDDI R&D Labs) SIP2013-96 RCS2013-266
Abstract (in Japanese) (See Japanese page) 
(in English) 3D Beamforming (3D BF) is a new feature of 3GPP LTE-A standard that is likely to increase spectral efficiency by exploiting the vertical dimension. If two co-located receivers are sufficiently spaced in elevation, 3D BF allows a base station (BS) to simultaneously serve them by focusing dedicated narrow beams on each receiver's vertical position. By deriving a closed-form expression of the signal-to-interference ratio which we show to be proportional to the vertical spacing between two such receivers, the accuracy of vertical spacing estimation is shown to be of paramount importance to the performance of 3D BF. A question is then how can a BS tell, with reasonable confidence, whether 2 receivers are sufficiently spaced in elevation for the beams not to significantly overlap. Thus, we provide a hypothesis testing framework under which a BS estimates such vertical spacing from the uplink signals received from the receivers, as well as a decision rule based upon which a BS decides whether or not to apply 3D BF in a given scenario.
Keyword (in Japanese) (See Japanese page) 
(in English) 3GPP / 3D MIMO Channel / Elevation Beamforming / Hypothesis Testing / Statistical Data Science / FD MIMO / LTE-Advanced / Massive MIMO  
Reference Info. IEICE Tech. Rep., vol. 113, no. 386, RCS2013-266, pp. 65-70, Jan. 2014.
Paper # RCS2013-266 
Date of Issue 2014-01-16 (SIP, RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF SIP2013-96 RCS2013-266

Conference Information
Committee RCS SIP  
Conference Date 2014-01-23 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Signal Processing for Wireless Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2014-01-RCS-SIP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A HypothesisTesting Framework For Elevation Beamforming 
Sub Title (in English)  
Keyword(1) 3GPP  
Keyword(2) 3D MIMO Channel  
Keyword(3) Elevation Beamforming  
Keyword(4) Hypothesis Testing  
Keyword(5) Statistical Data Science  
Keyword(6) FD MIMO  
Keyword(7) LTE-Advanced  
Keyword(8) Massive MIMO  
1st Author's Name Oussama Souihli  
1st Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI R&D Labs)
2nd Author's Name Yasuyuki Hatakawa  
2nd Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI R&D Labs)
3rd Author's Name Satoshi Konishi  
3rd Author's Affiliation KDDI R&D Laboratories, Inc. (KDDI R&D Labs)
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Speaker Author-1 
Date Time 2014-01-23 14:40:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # SIP2013-96, RCS2013-266 
Volume (vol) vol.113 
Number (no) no.385(SIP), no.386(RCS) 
Page pp.65-70 
#Pages 6 
Date of Issue 2014-01-16 (SIP, RCS) 

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