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Paper Abstract and Keywords
Presentation 2008-07-17 13:50
Theoretical Analysis of Multi-User Interference in Uplink IFDMA
Akira Yamasaki, Koichi Adachi, Masao Nakagawa (Keio Univ.) RCS2008-38
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, interleaved frequency division multiple access (IFDMA) has been attracting attention as a multiple access scheme in the uplink of the future mobile communication systems. However, since the signal received at the base station is time dispersive due to the asynchronous transmission among the simultaneous access users in the uplink, multi-user interference (MUI) occurs and the bit error rate (BER) performance is severely degraded. In this paper, we derived MUI component theoretically by taking into account of the number of asynchronous interference symbols and the amount of each user’s phase rotation, which is IFDMA specific, in the case of frequency non-selective fading. We numerically evaluate the average BER performance in asynchronous uplink IFDMA and compare the results with the computer simulation results.
Keyword (in Japanese) (See Japanese page) 
(in English) IFDMA / multi-user interference / performance analysis / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 135, RCS2008-38, pp. 37-42, July 2008.
Paper # RCS2008-38 
Date of Issue 2008-07-10 (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)
Download PDF RCS2008-38

Conference Information
Committee RCS NS  
Conference Date 2008-07-17 - 2008-07-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2008-07-RCS-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Analysis of Multi-User Interference in Uplink IFDMA 
Sub Title (in English)  
Keyword(1) IFDMA  
Keyword(2) multi-user interference  
Keyword(3) performance analysis  
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1st Author's Name Akira Yamasaki  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Koichi Adachi  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Masao Nakagawa  
3rd Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2008-07-17 13:50:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2008-38 
Volume (vol) vol.108 
Number (no) no.135 
Page pp.37-42 
#Pages 6 
Date of Issue 2008-07-10 (RCS) 

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