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Paper Abstract and Keywords
Presentation 2023-01-19 13:10
[Short Paper] Throughput Analysis in GF-NOMA with Inter-Cell Interference for mMTC
Rei Oda, Takeshi Hirai (Osaka Univ.), Shigeo Shioda (Chiba Univ.), Naoki Wakamiya (Osaka Univ.) SeMI2022-71
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents throughput in grant-free non-orthogonal multiple access (GF-NOMA) for massive machine-type communications over multiple cells. In GF-NOMA, each terminal autonomously selects a power resource, called a power level, to transmit a packet, and then, a base station decodes superposed packet signals at the same time-frequency resource by using the successive interference cancellation. The related works of GF-NOMA focused on the throughput in a single cell, and the throughput increased as the number of levels increased. However, in multi-cell environments, increasing the number of levels increases inter-cell interference. We analyze the inter-cell interference in multi-cell GF-NOMA and evaluate the throughput with this interference by simulation. Our simulation results highlighted that multi-cell GF-NOMA provided the peak throughput at seven levels or smaller and decreased the throughput below the single-cell one by 67% in a typical scenario.
Keyword (in Japanese) (See Japanese page) 
(in English) mMTC / grant-free / NOMA / SIC / inter-cell interference / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 341, SeMI2022-71, pp. 3-8, Jan. 2023.
Paper # SeMI2022-71 
Date of Issue 2023-01-12 (SeMI) 
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)
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Conference Information
Committee SeMI SeMI  
Conference Date 2023-01-19 - 2023-01-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Naruto grand hotel 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SeMI 
Conference Code 2023-01-SeMI-SeMI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Throughput Analysis in GF-NOMA with Inter-Cell Interference for mMTC 
Sub Title (in English)  
Keyword(1) mMTC  
Keyword(2) grant-free  
Keyword(3) NOMA  
Keyword(4) SIC  
Keyword(5) inter-cell interference  
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Keyword(8)  
1st Author's Name Rei Oda  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Takeshi Hirai  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Shigeo Shioda  
3rd Author's Affiliation Chiba University (Chiba Univ.)
4th Author's Name Naoki Wakamiya  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2023-01-19 13:10:00 
Presentation Time 10 minutes 
Registration for SeMI 
Paper # SeMI2022-71 
Volume (vol) vol.122 
Number (no) no.341 
Page pp.3-8 
#Pages 6 
Date of Issue 2023-01-12 (SeMI) 

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