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Paper Abstract and Keywords
Presentation 2010-10-29 15:20
Study of Multiuser Interference Canceller for OFDMA System
Junichi Fukui, Katsuhiro Naito, Kazuo Mori, Hideo Kobayashi (Mie Univ.) RCS2010-141
Abstract (in Japanese) (See Japanese page) 
(in English) The Orthogonal Frequency Division Multiple Access (OFDMA) system has been received considerable attentions by its efficient accommodation of users by employing such as adaptive modulation and channel allocation methods. When OFDMA technique applies to the uplink from the user terminal to the base station, Bit Error Rate (BER) performance would degrade relatively due to Inter-Carrier Interference (ICI) and Multi-User Interference (MUI) caused by the occurrence of independent frequency offset in each user transmission signal. This paper proposes MUI and ICI reduction methods, which can achieve the better BER performance even when each user has a different frequency offset. The salient feature of proposed method is to compensate the MUI and ICI by generating the time domain replica signal for each user taken into account the frequency offset and frequency channel response estimated for each user, and subtract them from the received time domain signal. This paper presents the various computer simulation results to demonstrate the effectiveness of proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDMA / Frequency Offset / Uplink / Multi-User Interference / Inter-Carrier Interference / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 251, RCS2010-141, pp. 217-222, Oct. 2010.
Paper # RCS2010-141 
Date of Issue 2010-10-20 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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 AN USN SR RCS  
Conference Date 2010-10-27 - 2010-10-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless distributed network, etc. 
Paper Information
Registration To RCS 
Conference Code 2010-10-AN-USN-SR-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of Multiuser Interference Canceller for OFDMA System 
Sub Title (in English)  
Keyword(1) OFDMA  
Keyword(2) Frequency Offset  
Keyword(3) Uplink  
Keyword(4) Multi-User Interference  
Keyword(5) Inter-Carrier Interference  
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1st Author's Name Junichi Fukui  
1st Author's Affiliation Mie University (Mie Univ.)
2nd Author's Name Katsuhiro Naito  
2nd Author's Affiliation Mie University (Mie Univ.)
3rd Author's Name Kazuo Mori  
3rd Author's Affiliation Mie University (Mie Univ.)
4th Author's Name Hideo Kobayashi  
4th Author's Affiliation Mie University (Mie Univ.)
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Speaker
Date Time 2010-10-29 15:20:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2010-141 
Volume (vol) IEICE-110 
Number (no) no.251 
Page pp.217-222 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2010-10-20 


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