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Paper Abstract and Keywords
Presentation 2016-08-29 15:10
A Study on beamforming methods in Cloud Radio Access Networks with fronthaul link constraints
Ryota Katsuki (Kyoto Univ.), Megumi Kaneko (NII), Kazunori Hayashi (Kyoto Univ.) CQ2016-58
Abstract (in Japanese) (See Japanese page) 
(in English) Cloud Radio Access Networks (CRAN)s are attracting much attention as a promising architecture for 5G systems. A CRAN consists of a Baseband Unit (BBU) pool acting as a cloud that processes all the user-to-Remote Radio Head (RRH) signals sent through the fronthaul links. In this paper, assuming the case where baseband signals are sent via fronthaul links, we propose a beamforming method for sum-rate maximization. In this case, the fronthaul constraint is expressed by the maximum number of users it can accommodate, since each user requires a fixed bandwidth given the sampling frequency. We propose a resource allocation method for sum-rate maximization which employs a zero-norm approximation of these discrete fronthaul constraints. Numerical results show that this method achieves higher sum-rate and fairness compared to reference methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Cloud Radio Access Network / Resource Allocation / Beamforming / Fronthaul Constraints / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 202, CQ2016-58, pp. 57-62, Aug. 2016.
Paper # CQ2016-58 
Date of Issue 2016-08-22 (CQ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 CQ  
Conference Date 2016-08-29 - 2016-08-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tsukubasan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Quality, Cross-Layer Techniques, 5G Mobile Communications and Applications, Wireless Network Protocol Design, Wireless Resource Management, IoT, M2M, etc. 
Paper Information
Registration To CQ 
Conference Code 2016-08-CQ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on beamforming methods in Cloud Radio Access Networks with fronthaul link constraints 
Sub Title (in English)  
Keyword(1) Cloud Radio Access Network  
Keyword(2) Resource Allocation  
Keyword(3) Beamforming  
Keyword(4) Fronthaul Constraints  
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1st Author's Name Ryota Katsuki  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Megumi Kaneko  
2nd Author's Affiliation National Institute of Informatics (NII)
3rd Author's Name Kazunori Hayashi  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2016-08-29 15:10:00 
Presentation Time 20 minutes 
Registration for CQ 
Paper # CQ2016-58 
Volume (vol) vol.116 
Number (no) no.202 
Page pp.57-62 
#Pages
Date of Issue 2016-08-22 (CQ) 


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