Paper Abstract and Keywords |
Presentation |
2015-06-26 09:40
Downlink NOMA Scheme with SIC Using Unified User Grouping for Non-orthogonal User Multiplexing and Decoding Order Keita Yakou, Kenichi Higuchi (Tokyo Univ. of Science) RCS2015-85 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we investigate practical methods for user grouping and setting of decoding order in a successive interference canceller (SIC) for downlink non-orthogonal multiple access (NOMA). While the optimal user grouping and decoding order depending on the instantaneous channel conditions among users within a cell is assumed in previous works, the proposed method uses user grouping and decoding order which is unified among all frequency blocks. The decoding order in SIC enables the application of NOMA with SIC to the system where all the elements within a codeword for a user are distributed among multiple frequency blocks (resource blocks) in frequency-selective fading channel. The unified user grouping alleviates the complexity in SIC process at the user terminal. The unified user grouping also achieves the reduction in complexity of the efficient downlink control signaling in NOMA with SIC. The unified user grouping and decoding order among frequency blocks in principle reduce the achievable throughput compared to the optimal one. However, from the numerical results, we show that the proposed method does not harm the system-level throughput significantly in downlink cellular network. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Downlink / Non-orthogonal multiple access / NOMA / SIC / User grouping / Decoding order / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 113, RCS2015-85, pp. 229-234, June 2015. |
Paper # |
RCS2015-85 |
Date of Issue |
2015-06-17 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 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) |
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RCS2015-85 |
Conference Information |
Committee |
RCS |
Conference Date |
2015-06-24 - 2015-06-26 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hokkaido Univ. |
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 |
2015-06-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Downlink NOMA Scheme with SIC Using Unified User Grouping for Non-orthogonal User Multiplexing and Decoding Order |
Sub Title (in English) |
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Downlink |
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Non-orthogonal multiple access |
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NOMA |
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SIC |
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User grouping |
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Decoding order |
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1st Author's Name |
Keita Yakou |
1st Author's Affiliation |
Tokyo University of Science (Tokyo Univ. of Science) |
2nd Author's Name |
Kenichi Higuchi |
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Tokyo University of Science (Tokyo Univ. of Science) |
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Speaker |
Author-1 |
Date Time |
2015-06-26 09:40:00 |
Presentation Time |
8 minutes |
Registration for |
RCS |
Paper # |
RCS2015-85 |
Volume (vol) |
vol.115 |
Number (no) |
no.113 |
Page |
pp.229-234 |
#Pages |
6 |
Date of Issue |
2015-06-17 (RCS) |
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