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Paper Abstract and Keywords
Presentation 2024-01-15 13:30
Multi-Cell Expansion Technology for Dynamic Full-Duplex Cellular System on 5G Uplink by Distributing Base Station Reception Function
Yusei Yasuba, Keita Fukushima, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.) SRW2023-43
Abstract (in Japanese) (See Japanese page) 
(in English) To accommodate increasing data traffic, in-band full-duplex has attracted much attention because of the improved spectral utilization efficiency, which can ideally achieve twice the throughput. In particular, it has been shown that the dynamic full-duplex cellular (DDC) system with distributed receive-only base stations (BSs) can improve the throughput compared to the conventional DDC system in a single-cell environment. This is because distributed receive-only BSs can reduce self-interference by separating the radio unit (RU) into transmit-only RU (TRU) and receive-only RU (RRU). On the other hand, in a multi-cell environment, interference from other cells reduces the throughput. To solve this problem, this report proposes a novel multi-cell DDC system with distributed receive-only BSs whose antenna configuration takes interference from other cells into account. In the proposed system, directional RRUs are distributed at the sector edges to mitigate interference from other cells compared to the conventional distributed BS system. To evaluate the proposed method, computer simulation is conducted in a multi-cell environment when downlink (DL) communication is superimposed on 5G uplink (UL) subframes, and it is shown that the proposed DDC system is effective in improving both UL and DL throughput.
Keyword (in Japanese) (See Japanese page) 
(in English) Beyond 5G / 6G / Full-Duplex / Dynamic Full-Duplex / Distributed BS / Multi-Cell / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 331, SRW2023-43, pp. 24-29, Jan. 2024.
Paper # SRW2023-43 
Date of Issue 2024-01-08 (SRW) 
ISSN 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)
Download PDF SRW2023-43

Conference Information
Committee SRW  
Conference Date 2024-01-15 - 2024-01-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) WLAN, WPAN, Sensor Networks, mmWave, etc. 
Paper Information
Registration To SRW 
Conference Code 2024-01-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-Cell Expansion Technology for Dynamic Full-Duplex Cellular System on 5G Uplink by Distributing Base Station Reception Function 
Sub Title (in English)  
Keyword(1) Beyond 5G  
Keyword(2) 6G  
Keyword(3) Full-Duplex  
Keyword(4) Dynamic Full-Duplex  
Keyword(5) Distributed BS  
Keyword(6) Multi-Cell  
1st Author's Name Yusei Yasuba  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Keita Fukushima  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Keiichi Mizutani  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Hiroshi Harada  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2024-01-15 13:30:00 
Presentation Time 25 minutes 
Registration for SRW 
Paper # SRW2023-43 
Volume (vol) vol.123 
Number (no) no.331 
Page pp.24-29 
Date of Issue 2024-01-08 (SRW) 

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