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Paper Abstract and Keywords
Presentation 2018-02-28 15:20
Algorithm Study of High-Capacity Technologies for 5G Ultra High-Density Distributed Antenna Systems -- UE Scheduling Prioritizing High-Speed UEs in Small-Delay Slots from Channel Estimation Timing --
Takashi Seyama, Shinya Kumagai, Teppei Oyama, Daisuke Jitsukawa, Takashi Dateki (FUJITSU), Koji Matsuyama (FUJITSU LABORATORIES), Hiroyuki Seki, Morihiko Minowa (FUJITSU) RCS2017-337
Abstract (in Japanese) (See Japanese page) 
(in English) In fifth generation mobile communication systems, enhancement of spectral efficiency per unit area by increasing the density of transmission points per unit area is required. We have been studying large scale coordinated multi-user MIMO to enhance system capacity for 5G technology. Channel mismatch between channel estimation timing and data transmission timing due to channel variation drastically degrades throughput performance in ZF (Zero Forcing) MU-MIMO. In this paper, we propose a novel method that preferentially schedule high speed UEs experiencing severe channel variation in small-delay slots from channel estimation timing. This scheduling is realized by inputting the predicted SINR, which is estimated from channel variation between most two recent channel estimates, to PF (Proportional Fairness) scheduler. Computer simulations show that the proposed method improve mean UE throughput of high speed UEs.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / Ultra high-density distributed antenna system / Coordinated Multi-User MIMO / Channel variation / PF scheduling / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 456, RCS2017-337, pp. 113-118, Feb. 2018.
Paper # RCS2017-337 
Date of Issue 2018-02-21 (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. (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 RCS 
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) Algorithm Study of High-Capacity Technologies for 5G Ultra High-Density Distributed Antenna Systems 
Sub Title (in English) UE Scheduling Prioritizing High-Speed UEs in Small-Delay Slots from Channel Estimation Timing 
Keyword(1) 5G  
Keyword(2) Ultra high-density distributed antenna system  
Keyword(3) Coordinated Multi-User MIMO  
Keyword(4) Channel variation  
Keyword(5) PF scheduling  
1st Author's Name Takashi Seyama  
1st Author's Affiliation FUJITSU LIMITED (FUJITSU)
2nd Author's Name Shinya Kumagai  
2nd Author's Affiliation FUJITSU LIMITED (FUJITSU)
3rd Author's Name Teppei Oyama  
3rd Author's Affiliation FUJITSU LIMITED (FUJITSU)
4th Author's Name Daisuke Jitsukawa  
4th Author's Affiliation FUJITSU LIMITED (FUJITSU)
5th Author's Name Takashi Dateki  
5th Author's Affiliation FUJITSU LIMITED (FUJITSU)
6th Author's Name Koji Matsuyama  
7th Author's Name Hiroyuki Seki  
7th Author's Affiliation FUJITSU LIMITED (FUJITSU)
8th Author's Name Morihiko Minowa  
8th Author's Affiliation FUJITSU LIMITED (FUJITSU)
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Speaker Author-1 
Date Time 2018-02-28 15:20:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2017-337 
Volume (vol) vol.117 
Number (no) no.456 
Page pp.113-118 
Date of Issue 2018-02-21 (RCS) 

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