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Paper Abstract and Keywords
Presentation 2007-07-20 15:00
Non-synchronized random access process of Single Carrier FDMA system
Doohwan Lee, Hiroyuki Morikawa (Univ. of Tokyo) RCS2007-52
Abstract (in Japanese) (See Japanese page) 
(in English) Single carrier FDMA (SC-FDMA) is promising technology as an attractive alternative to OFDMA system thanks to low PAPR property. It is adopted as uplink candidate in 3GPP long term evolution (LTE) system. SC-FDMA based LTE uplink system provides random access with synchronized way and non-synchronized way. In particular, the latter is used for contention-oriented initial network entry. Multiple UEs may perform random access simultaneously through the same channel and contention resolution is achieved by exploiting the cross correlation property of random access codes. Theoretically, random access codes provide orthogonality among UEs. However, it is susceptible to the channel characteristics in the multipath fading environment. This paper will analyzed the performance of non-synchronized random access based on SC-FDMA with various channel environments. It will be the guideline in designing LTE uplink system.
Keyword (in Japanese) (See Japanese page) 
(in English) SC-FDMA / LTE / Random access / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 147, RCS2007-52, pp. 139-144, July 2007.
Paper # RCS2007-52 
Date of Issue 2007-07-12 (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 RCS2007-52

Conference Information
Committee NS RCS  
Conference Date 2007-07-19 - 2007-07-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kitami Institute of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-07-NS-RCS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Non-synchronized random access process of Single Carrier FDMA system 
Sub Title (in English)  
Keyword(1) SC-FDMA  
Keyword(2) LTE  
Keyword(3) Random access  
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1st Author's Name Doohwan Lee  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Hiroyuki Morikawa  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2007-07-20 15:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2007-52 
Volume (vol) vol.107 
Number (no) no.147 
Page pp.139-144 
#Pages 6 
Date of Issue 2007-07-12 (RCS) 

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