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Paper Abstract and Keywords
Presentation 2024-05-30 10:25
Evaluation of ACLR and Beam Detection Characteristics for Fast Beam Steering with Discrete Subcarrier Arrangement
Hideya So (SIT), Kazuki Maruta (TUS), Takana Kaho (SIT) RCS2024-15
Abstract (in Japanese) (See Japanese page) 
(in English) To reduce beam search time, this report proposes a novel beam search scheme using discrete subcarrier placement and fast beam steering. Massive Multiple-Input Multiple-Output (Massive MIMO) with multiple antenna elements improves the gain of user equipment (UE) by beamforming. However, the beam search time increases as the number of beam candidates increases. The authors have proposed a beam search scheme using fast beam steering with a fast phase shifter applied to the synchronization signal block. This report proposes a beam search scheme in which control signals for beam search are discretely placed on subcarriers, and fast beam steering is performed according to the periodicity of the time signal within a symbol. By placing control signals on subcarriers for each number of beams, a periodic signal for each number of beams is generated within a symbol. The proposed scheme assigns a different beam to each of the periodic signals and performs fast beam steering within a symbol to achieve short-time beam search. Computer simulation results show that the discrete subcarrier beam search scheme reduces the Adjacent Channel Leakage Ratio (ACLR).
Keyword (in Japanese) (See Japanese page) 
(in English) Massive MIMO / fast beam steering / beam search / fast phase shifter / ACLR / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 52, RCS2024-15, pp. 7-12, May 2024.
Paper # RCS2024-15 
Date of Issue 2024-05-23 (RCS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 RCS2024-15

Conference Information
Committee IN RCS NV  
Conference Date 2024-05-30 - 2024-05-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ad-Hoc/Sensor Networks/MANET, Mobile Networks, M2M/IoT Communications, Wi-Fi, IEEE802.15(ZigBee) and others 
Paper Information
Registration To RCS 
Conference Code 2024-05-IN-RCS-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of ACLR and Beam Detection Characteristics for Fast Beam Steering with Discrete Subcarrier Arrangement 
Sub Title (in English)  
Keyword(1) Massive MIMO  
Keyword(2) fast beam steering  
Keyword(3) beam search  
Keyword(4) fast phase shifter  
Keyword(5) ACLR  
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1st Author's Name Hideya So  
1st Author's Affiliation Shonan Institute of Technology (SIT)
2nd Author's Name Kazuki Maruta  
2nd Author's Affiliation Tokyo University of Science (TUS)
3rd Author's Name Takana Kaho  
3rd Author's Affiliation Shonan Institute of Technology (SIT)
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Speaker Author-1 
Date Time 2024-05-30 10:25:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2024-15 
Volume (vol) vol.124 
Number (no) no.52 
Page pp.7-12 
#Pages 6 
Date of Issue 2024-05-23 (RCS) 

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