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Paper Abstract and Keywords
Presentation 2009-05-21 09:20
A Study of Frequency-Domain Signal Detection for Multi-Code DS-CDMA Transmission
Tetsuya Yamamoto, Kazuki Takeda, Fumiyuki Adachi (Tohoku Univ.) RCS2009-2
Abstract (in Japanese) (See Japanese page) 
(in English) In our recent paper, we pointed out that the frequency-domain received signal in the single-carrier (SC) transmissions can be expressed as in the signal transmissions using multiple-input multiple-output (MIMO) multiplexing and we proposed a frequency-domain block signal detection based on various MIMO signal detection schemes for the SC signal transmissions. The frequency-domain received signal in the direct-sequence code division multiple access (DS-CDMA) transmissions can also be expressed using the matrix representation similar to the MIMO multiplexing. In this paper, we extend the previously proposed frequency-domain block signal detection to the multi-code DS-CDMA signal transmissions. Minimum mean square error (MMSE) detection, Vertical-Bell Laboratories layered space-time architecture (V-BLAST) detection, and maximum likelihood detection employing QR decomposition and M-algorithm (QRM-MLD) are considered. When using V-BLAST or QRM-MLD, the detection ordering is introduced based on the signal-to-interference plus noise power ratio (SINR). We evaluate, by computer simulation, the achievable bit error rate (BER) performance of multi-code DS-CDMA using the proposed frequency-domain block signal detection and we discuss the impacts of spreading factor and code multiplexing order on the achievable BER performance.
Keyword (in Japanese) (See Japanese page) 
(in English) multi-code DS-CDMA / frequency-domain block signal detection / MMSE / V-BLAST / QRM-MLD / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 38, RCS2009-2, pp. 7-12, May 2009.
Paper # RCS2009-2 
Date of Issue 2009-05-14 (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 RCS2009-2

Conference Information
Committee RCS IN  
Conference Date 2009-05-21 - 2009-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) multihop, mesh network, network coding, wireless communication, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-05-RCS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Frequency-Domain Signal Detection for Multi-Code DS-CDMA Transmission 
Sub Title (in English)  
Keyword(1) multi-code DS-CDMA  
Keyword(2) frequency-domain block signal detection  
Keyword(3) MMSE  
Keyword(4) V-BLAST  
Keyword(5) QRM-MLD  
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Keyword(7)  
Keyword(8)  
1st Author's Name Tetsuya Yamamoto  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Kazuki Takeda  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Fumiyuki Adachi  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2009-05-21 09:20:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2009-2 
Volume (vol) vol.109 
Number (no) no.38 
Page pp.7-12 
#Pages 6 
Date of Issue 2009-05-14 (RCS) 

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