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Paper Abstract and Keywords
Presentation 2025-06-24 11:45
A study on physical layer encryption and transmission efficiency improvement using chaotic phase multiplication in multi-TRP environments
Kota Fujiyama, Eiji Okamoto (Nagoya Institute of Technology), Naoto Horiike, Tetsuya Yamamoto (Panasonic Holdings) RCS2025-40
Abstract (in Japanese) (See Japanese page) 
(in English) In the fifth generation (5G) mobile communication systems, the standardization of multi-transmission and reception point (multi-TRP) technology has been actively promoted to enhance the channel capacity. However, the use of multiple base stations can lead to spatial spreading of transmission signals, thereby increasing the risk of eavesdropping. This paper proposes a novel method that simultaneously achieves physical layer security and transmission efficiency in Multi-TRP systems by multiplying the transmitted signal with a pseudo-random chaotic phase signal generated based on additional data and a shared key at the transmitter. Through numerical simulations, we demonstrate that the proposed method outperforms a conventional method that employs two types of quadrature phase shift keying (QPSK) constellations for additional data transmission, in terms of both security and throughput performance.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / multi-TRP / physical layer security / additional data transmission / throughput / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 88, RCS2025-40, pp. 56-61, June 2025.
Paper # RCS2025-40 
Date of Issue 2025-06-17 (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 RCS2025-40

Conference Information
Committee RCS  
Conference Date 2025-06-24 - 2025-06-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Asahikawa-Shimin-Bunka-Kaikan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2025-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on physical layer encryption and transmission efficiency improvement using chaotic phase multiplication in multi-TRP environments 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) multi-TRP  
Keyword(3) physical layer security  
Keyword(4) additional data transmission  
Keyword(5) throughput  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kota Fujiyama  
1st Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
2nd Author's Name Eiji Okamoto  
2nd Author's Affiliation Nagoya Institute of Technology (Nagoya Institute of Technology)
3rd Author's Name Naoto Horiike  
3rd Author's Affiliation Panasonic Holdings Corporation (Panasonic Holdings)
4th Author's Name Tetsuya Yamamoto  
4th Author's Affiliation Panasonic Holdings Corporation (Panasonic Holdings)
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Speaker Author-1 
Date Time 2025-06-24 11:45:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2025-40 
Volume (vol) vol.125 
Number (no) no.88 
Page pp.56-61 
#Pages 6 
Date of Issue 2025-06-17 (RCS) 

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