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Paper Abstract and Keywords
Presentation 2017-11-09 09:00
Frequency Block-Dependent Transmitter Beamforming Control Based on Firefly Algorithm for Massive MIMO Systems with Per-Antenna Power Constraint
Takashi Yamanaka, Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-224
Abstract (in Japanese) (See Japanese page) 
(in English) In the massive multiple-input multiple-output (MIMO) downlink, transmitter beamforming (BF) to achieve a beamforming (power) gain and/or a reduction in inter-user interference in a multiuser MIMO case based on the channel state information (CSI)-feedback from the user terminals is essential. Massive MIMO requires a large number of transmitter power amplifiers dedicated to each of the transmitter antennas, and the allowable transmit power per power amplifier (thus per transmitter antenna) is severely limited. Therefore, it is necessary to perform transmission BF considering the limitation on the transmit power per antenna. In this paper, we apply our previously reported BF control using the FA to frequency selective transmission BF control under the presence of multiple frequency blocks. By considering the set of BF matrices generated for each frequency block as a position of the firefly and the obtainable metric for the system throughput maximization as a brightness of the firefly, we apply the FA to the BF control. We evaluate the performance of BF control using FA under the presence of multiple frequency blocks when the system throughput is defined as the geometric mean user throughput by using computer simulations and compare them with the case using conventional zero forming (ZF)-based BF.
Keyword (in Japanese) (See Japanese page) 
(in English) Massive MIMO / beamforming / firefly algorithm / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 284, RCS2017-224, pp. 111-116, Nov. 2017.
Paper # RCS2017-224 
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)
Download PDF RCS2017-224

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 Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Frequency Block-Dependent Transmitter Beamforming Control Based on Firefly Algorithm for Massive MIMO Systems with Per-Antenna Power Constraint 
Sub Title (in English)  
Keyword(1) Massive MIMO  
Keyword(2) beamforming  
Keyword(3) firefly algorithm  
1st Author's Name Takashi Yamanaka  
1st Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
2nd Author's Name Kenichi Higuchi  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
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Date Time 2017-11-09 09:00:00 
Presentation Time 25 
Registration for RCS 
Paper # IEICE-RCS2017-224 
Volume (vol) IEICE-117 
Number (no) no.284 
Page pp.111-116 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-11-01 

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