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Paper Abstract and Keywords
Presentation 2018-02-28 15:15
A Performance Evaluation of D2D Relay Communication in 5G systems
Koichiro Kitagawa, Takashi Fujimoto, Bingxuan Zhao, Ryochi Kataoka, Katsuo Yunoki, Hiroyuki Shinbo (KDDI Research) SR2017-114
Abstract (in Japanese) (See Japanese page) 
(in English) In 5G systems, resource utilization in small cells with higher frequency band can be improved by using device-to-device (D2D) relay communications. However, in order to satisfy performance requirements of the users, network should collect channel quality information of D2D links, which leads to large signaling overhead in communication resources. In this paper, we evaluate, through system level simulations, the effect of signaling reduction by applying ProSe Function Server (PFS) to reduce the number of users to report the channel quality information to the network. As an example of the results, it is shown that the application of PFS can mitigate the degradation of uplink throughput by more than 55% when the number of the users in the system is 3000. Therefore, the application of PFS is shown to be especially effective for the dense user scenarios.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / D2D relay communication / ProSe function server / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 457, SR2017-114, pp. 17-23, Feb. 2018.
Paper # SR2017-114 
Date of Issue 2018-02-21 (SR) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCS SR SRW  
Conference Date 2018-02-28 - 2018-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2018-02-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Performance Evaluation of D2D Relay Communication in 5G systems 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) D2D relay communication  
Keyword(3) ProSe function server  
1st Author's Name Koichiro Kitagawa  
1st Author's Affiliation KDDI Research (KDDI Research)
2nd Author's Name Takashi Fujimoto  
2nd Author's Affiliation KDDI Research (KDDI Research)
3rd Author's Name Bingxuan Zhao  
3rd Author's Affiliation KDDI Research (KDDI Research)
4th Author's Name Ryochi Kataoka  
4th Author's Affiliation KDDI Research (KDDI Research)
5th Author's Name Katsuo Yunoki  
5th Author's Affiliation KDDI Research (KDDI Research)
6th Author's Name Hiroyuki Shinbo  
6th Author's Affiliation KDDI Research (KDDI Research)
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Speaker Author-1 
Date Time 2018-02-28 15:15:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2017-114 
Volume (vol) vol.117 
Number (no) no.457 
Page pp.17-23 
Date of Issue 2018-02-21 (SR) 

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