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Paper Abstract and Keywords
Presentation 2018-06-22 10:00
Considerations for Superposed Modulation Combined with QPSK and 256-QAM in NOMA.
Koki Senda, Hiroyuki Otsuka (Kogakuin Univ.) RCS2018-66
Abstract (in Japanese) (See Japanese page) 
(in English) Non-orthogonal multiple access (NOMA) is a potential candidate for the 5th-generation mobile systems (5G). In NOMA, two types of modulation signals are superposed for two different user equipment (UEs) in the power domain. The use of higher-order modulation such as 256-QAM is an also important technique under consideration for 5G. In this paper, we propose superposed modulation using QPSK and 256-QAM for downlink NOMA, and demonstrate the performance by link-level simulation under static propagation condition. The BER performance is investigated for the “superposed QPSK and 256-QAM” transmission as parameters of power allocation sets. From these results, we clarify the requirements for paired NOMA UEs when the superposed QPSK and 256-QAM is used in downlink NOMA.
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile communication / NOMA / Superposed modulation / 256-QAM / Power allocation / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 101, RCS2018-66, pp. 185-189, June 2018.
Paper # RCS2018-66 
Date of Issue 2018-06-13 (RCS) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2018-66

Conference Information
Committee RCS  
Conference Date 2018-06-20 - 2018-06-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2018-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Considerations for Superposed Modulation Combined with QPSK and 256-QAM in NOMA. 
Sub Title (in English)  
Keyword(1) Mobile communication  
Keyword(2) NOMA  
Keyword(3) Superposed modulation  
Keyword(4) 256-QAM  
Keyword(5) Power allocation  
1st Author's Name Koki Senda  
1st Author's Affiliation Kogakuin University (Kogakuin Univ.)
2nd Author's Name Hiroyuki Otsuka  
2nd Author's Affiliation Kogakuin University (Kogakuin Univ.)
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Date Time 2018-06-22 10:00:00 
Presentation Time 10 
Registration for RCS 
Paper # IEICE-RCS2018-66 
Volume (vol) IEICE-118 
Number (no) no.101 
Page pp.185-189 
#Pages IEICE-5 
Date of Issue IEICE-RCS-2018-06-13 

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