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Paper Abstract and Keywords
Presentation 2025-03-05 17:45
Searching for Optimal Pilot Pattern by Black-box Optimization Method Using Quantum Computing
Hiroaki Ominato, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) RCS2024-270
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes an adaptive optimization method for pilot signal allocation in wireless communication systems. Pilot signals, serving as known data embedded in the transmitted signal, are crucial for estimating channel responses and maintaining communication quality. With the increasing demand for wireless communication in high-frequency bands and high-speed mobile environments, it is necessary to consider communication in propagation environments where channel responses change drastically. In such scenarios, channel estimation accuracy can be degraded with conventional fixed pilot patterns, potentially reducing communication capacity. Consequently, it is desirable to dynamically optimize pilot pattern for each propagation environment to maximize communication speed. For that purpose, it is necessary to investigate the relationship between pilot patterns and communication speed through precise propagation simulations and actual communication. However, the optimal pilot pattern should be derived within a limited number of trials bacause of constraints on computational cost and communication resources. To address this challenge, we have developed an adaptive pilot pattern strategy utilizing FMQA, a black-box optimization technique based on quantum computing. Simulation results demonstrate that the proposed adaptive pilot pattern optimization method improves communication channel capacity compared to existing fixed patterns.
Keyword (in Japanese) (See Japanese page) 
(in English) Channel estimation / Pilot pattern / Black-box optimization / Qantum computing / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 409, RCS2024-270, pp. 70-75, March 2025.
Paper # RCS2024-270 
Date of Issue 2025-02-26 (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 RCS2024-270

Conference Information
Committee RCS SR SRW  
Conference Date 2025-03-05 - 2025-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2025-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Searching for Optimal Pilot Pattern by Black-box Optimization Method Using Quantum Computing 
Sub Title (in English)  
Keyword(1) Channel estimation  
Keyword(2) Pilot pattern  
Keyword(3) Black-box optimization  
Keyword(4) Qantum computing  
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1st Author's Name Hiroaki Ominato  
1st Author's Affiliation Panasonic System Networks R&D Lab. Co., Ltd. (PSNRD)
2nd Author's Name Ryo Takahashi  
2nd Author's Affiliation Panasonic System Networks R&D Lab. Co., Ltd. (PSNRD)
3rd Author's Name Takahiro Ohyama  
3rd Author's Affiliation Panasonic System Networks R&D Lab. Co., Ltd. (PSNRD)
4th Author's Name Fumiyuki Adachi  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2025-03-05 17:45:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2024-270 
Volume (vol) vol.124 
Number (no) no.409 
Page pp.70-75 
#Pages 6 
Date of Issue 2025-02-26 (RCS) 

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