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Paper Abstract and Keywords
Presentation 2026-06-18 16:40
Noncoherent Communication System Based on Quantum Operators
Nanami Yamamoto, Joe Asano, Naoki Ishikawa (Yokohama National Univ.) RCS2026-70
Abstract (in Japanese) (See Japanese page) 
(in English) Constellation design on the Grassmann manifold, which possesses favorable geometric properties, has been employed as one of the methods for realizing noncoherent communication in wireless systems. In this paper, we propose a constellation design on the Grassmann manifold that applies the symmetry of quantum operators. In Grassmannian constellation design, maximizing the minimum chordal distance is essential for improving performance in terms of symbol error rate and average mutual information. As the number of bits increases, the computational complexity increases exponentially, making optimal constellation design challenging. In this paper, we assume a single-transmit-antenna environment and propose a constellation design method based on quantum operators. Specifically, by employing symmetric informationally complete positive operator-valued measures, which are well known in quantum measurement theory, we realize a design that requires no constellation optimization while maximizing the minimum chordal distance. Simulation results demonstrate that the proposed constellations achieve the performance same as or better than Manopt in terms of both SER and AMI. Furthermore, the minimum chordal distance of the proposed constellations is confirmed to coincide with the theoretical upper bound.
Keyword (in Japanese) (See Japanese page) 
(in English) Grassmann manifold / Noncoherent communications / Quantum operators / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 72, RCS2026-70, pp. 254-259, June 2026.
Paper # RCS2026-70 
Date of Issue 2026-06-10 (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 RCS2026-70

Conference Information
Committee RCS  
Conference Date 2026-06-17 - 2026-06-19 
Place (in Japanese) (See Japanese page) 
Place (in English) The Ohama Nobumoto Memorial Hall 
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 2026-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noncoherent Communication System Based on Quantum Operators 
Sub Title (in English)  
Keyword(1) Grassmann manifold  
Keyword(2) Noncoherent communications  
Keyword(3) Quantum operators  
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1st Author's Name Nanami Yamamoto  
1st Author's Affiliation Yokohama National University (Yokohama National Univ.)
2nd Author's Name Joe Asano  
2nd Author's Affiliation Yokohama National University (Yokohama National Univ.)
3rd Author's Name Naoki Ishikawa  
3rd Author's Affiliation Yokohama National University (Yokohama National Univ.)
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Speaker Author-1 
Date Time 2026-06-18 16:40:00 
Presentation Time 10 minutes 
Registration for RCS 
Paper # RCS2026-70 
Volume (vol) vol.126 
Number (no) no.72 
Page pp.254-259 
#Pages 6 
Date of Issue 2026-06-10 (RCS) 

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