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Paper Abstract and Keywords
Presentation 2013-02-28 10:00
Investigations on Power Allocation Among Beams in Non-orthogonal Access with Random Beamforming and Intra-beam SIC for Cellular MIMO Downlink
Yuta Hayashi (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2012-326
Abstract (in Japanese) (See Japanese page) 
(in English) We investigate the power allocation among multiple beams in our previously reported non-orthogonal access with random beamforming and intra-beam successive interference canceller (SIC) for cellular multiple-input multiple-output (MIMO) downlink. By equally allocating transmission power among multiple beams, the average of user throughput within a cell can be enhanced due to the effective use of spatial multiplexing. Meanwhile, the throughput of users at the cell edge may be improved by non-equal transmission power allocation among beams since the inter-beam interference is decreased and received signal power is increased from the viewpoint of the main beam to which most of the transmission power is allocated. The tradeoff between the average and cell-edge user throughput by using the control of transmission power allocation among multiple beams which is frequency block dependent in addition to the inter-cell interference coordination by the fractional frequency reuse (FFR) which utilizes the different transmission power allocation among frequency blocks is quantitatively evaluated.
Keyword (in Japanese) (See Japanese page) 
(in English) Cellular system / Downlink / Non-orthogonal multiple access / SIC / MIMO / Random beamforming / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 443, RCS2012-326, pp. 255-260, Feb. 2013.
Paper # RCS2012-326 
Date of Issue 2013-02-20 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee RCS SR SRW  
Conference Date 2013-02-27 - 2013-03-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2013-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigations on Power Allocation Among Beams in Non-orthogonal Access with Random Beamforming and Intra-beam SIC for Cellular MIMO Downlink 
Sub Title (in English)  
Keyword(1) Cellular system  
Keyword(2) Downlink  
Keyword(3) Non-orthogonal multiple access  
Keyword(4) SIC  
Keyword(5) MIMO  
Keyword(6) Random beamforming  
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Keyword(8)  
1st Author's Name Yuta Hayashi  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Yoshihisa Kishiyama  
2nd Author's Affiliation NTT DOCOMO, INC. (NTT DOCOMO)
3rd Author's Name Kenichi Higuchi  
3rd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Speaker Author-1 
Date Time 2013-02-28 10:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2012-326 
Volume (vol) vol.112 
Number (no) no.443 
Page pp.255-260 
#Pages
Date of Issue 2013-02-20 (RCS) 


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