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Paper Abstract and Keywords
Presentation 2018-11-05 13:00
[Poster Presentation] Impact of the Number of Uniform Circular Arrays on System Capacity in OAM Multiplexing
Shuhei Saito, Hirofumi Suganuma (Waseda Univ.), Kayo Ogawa (Japan Women's Univ.), Fumiaki Maehara (Waseda Univ.) ASN2018-66 SRW2018-31
Abstract (in Japanese) (See Japanese page) 
(in English) In UCA-based OAM, the spatial phase and intensity distribution of the transmit OAM signals change significantly depending on the system parameters, such as carrier frequency, antenna radius, and the number of antenna elements. Moreover, the received signal power extremely differs among OAM modes at a certain communication distance. Therefore, it is important to carefully consider the effect of various system parameters on the transmission performance in designing UCA-based OAM. To alleviate the fluctuation of the performance of UCA-based OAM, the adoption of multiple UCAs has been proposed to provide an enhanced degree of freedom to the antenna radius. Meanwhile, another approach is considered to increase the available number of OAM modes by decreasing the number of UCAs within the constant number of antenna elements. In this report, we investigate the system capacity of UCA-based OAM with the number of UCAs. The primary contribution of our investigation is to clarify the waterfilling-based possible system capacity of UCA-based OAM within the constant transmit power and the number of antenna elements.
Keyword (in Japanese) (See Japanese page) 
(in English) orbital angular momentum (OAM) / uniform circular array (UCA) / mode multiplexing / system capacity / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 283, SRW2018-31, pp. 45-46, Nov. 2018.
Paper # SRW2018-31 
Date of Issue 2018-10-29 (ASN, SRW) 
ISSN Print edition: ISSN 0913-5685  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 ASN2018-66 SRW2018-31

Conference Information
Committee ASN SRW  
Conference Date 2018-11-05 - 2018-11-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Denki University, Tokyo Senju Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Poster session, etc. 
Paper Information
Registration To SRW 
Conference Code 2018-11-ASN-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Impact of the Number of Uniform Circular Arrays on System Capacity in OAM Multiplexing 
Sub Title (in English)  
Keyword(1) orbital angular momentum (OAM)  
Keyword(2) uniform circular array (UCA)  
Keyword(3) mode multiplexing  
Keyword(4) system capacity  
1st Author's Name Shuhei Saito  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Hirofumi Suganuma  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Kayo Ogawa  
3rd Author's Affiliation Japan Women's University (Japan Women's Univ.)
4th Author's Name Fumiaki Maehara  
4th Author's Affiliation Waseda University (Waseda Univ.)
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Date Time 2018-11-05 13:00:00 
Presentation Time 70 
Registration for SRW 
Paper # IEICE-ASN2018-66,IEICE-SRW2018-31 
Volume (vol) IEICE-118 
Number (no) no.282(ASN), no.283(SRW) 
Page pp.69-70(ASN), pp.45-46(SRW) 
#Pages IEICE-2 
Date of Issue IEICE-ASN-2018-10-29,IEICE-SRW-2018-10-29 

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