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Paper Abstract and Keywords
Presentation 2015-03-06 10:50
Adaptive 2-Dimensional Block Spreading for Downlink MC-CDMA Distributed Antenna Network
Yumeto Mori, Shohei Inoshita, Hiroyuki Miyazaki, Fumiyuki Adachi (Tohoku Univ.) RCS2014-353
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we study in order to apply the multi-carrier code division multiple access (MC-CDMA) and 2-dimensional block spreading (2D-BS) to distributed antenna network. In 2D-BS, many users can be orthogonalized by increasing time domain block spreading factor. However, frequency diversity gain decreases as the time-domain block spreading factor. Therefore, the optimal time domain block spreading factor is different due to the number of access users. In DAN, particularly, the optimal time domain block spreading factor should be different among distributed antennas because the number of access users is different among distributed antennas. In this paper, we discuss adaptive 2D-BS for downlink DAN using MC-CDMA. In the adaptive 2D-BS, each distributed antenna determines the time-domain block spreading factor as the number of own access users. We investigate, by computer simulation, downlink capacity of the MC-CDMA DAN using adaptive 2D-BS and show that the adaptive 2D-BS can achieve larger link capacity than the use of common 2D-BS over a cell.
Keyword (in Japanese) (See Japanese page) 
(in English) Distributed antenna network / MC-CDMA / Spreading codes / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 490, RCS2014-353, pp. 309-314, March 2015.
Paper # RCS2014-353 
Date of Issue 2015-02-25 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 RCS SR SRW  
Conference Date 2015-03-04 - 2015-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2015-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive 2-Dimensional Block Spreading for Downlink MC-CDMA Distributed Antenna Network 
Sub Title (in English)  
Keyword(1) Distributed antenna network  
Keyword(2) MC-CDMA  
Keyword(3) Spreading codes  
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1st Author's Name Yumeto Mori  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Shohei Inoshita  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Hiroyuki Miyazaki  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Fumiyuki Adachi  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2015-03-06 10:50:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2014-353 
Volume (vol) vol.114 
Number (no) no.490 
Page pp.309-314 
#Pages
Date of Issue 2015-02-25 (RCS) 


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