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Paper Abstract and Keywords
Presentation 2011-08-25 09:55
A study on multi-rate transmission using LDGM code for satellite-to-ground laser communications
Eiji Okamoto, Hirotaka Matsuo, Takuma Kyo (Nagoya Inst.Tech.), Yozo Shoji, Yoshihisa Takayama, Morio Toyoshima (NICT) SAT2011-18 RCS2011-113
Abstract (in Japanese) (See Japanese page) 
(in English) In satellite laser communications, a long round-trip delay occurs due to the long distance of the satellite altitude from earth ground. To achieve an multi-rate transmission in such a long delay satellite link, we propose a multi-rate low density generator matrix (LDGM) code for satellite laser communications. Since the proposed scheme does not utilize a preamble transmission of the rate information nor the repeat request scheme, a long feedback delay in the satellite link and a decrease of transmission efficiency can be avoided. This scheme enables the tradeoff with the quality and the rate-efficiency of transmission from the transmitter-side state. In the receiver, an exact rate-decision and decoding are conducted without the preamble. It is shown through computer simulations that the proposed scheme is effective in the satellite-to-ground optical link.
Keyword (in Japanese) (See Japanese page) 
(in English) LDGM codes / multi-rate transmission / satellite laser communications / iterative decoding / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 179, SAT2011-18, pp. 13-17, Aug. 2011.
Paper # SAT2011-18 
Date of Issue 2011-08-18 (SAT, 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 SAT2011-18 RCS2011-113

Conference Information
Committee RCS SAT  
Conference Date 2011-08-25 - 2011-08-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Special session on coding techniques, Mobile Satellite Communications, Broadcasting, Error Correction, Wireless Communication Systems, etc. 
Paper Information
Registration To SAT 
Conference Code 2011-08-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on multi-rate transmission using LDGM code for satellite-to-ground laser communications 
Sub Title (in English)  
Keyword(1) LDGM codes  
Keyword(2) multi-rate transmission  
Keyword(3) satellite laser communications  
Keyword(4) iterative decoding  
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Keyword(6)  
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1st Author's Name Eiji Okamoto  
1st Author's Affiliation Nagoya Institute of Technology (Nagoya Inst.Tech.)
2nd Author's Name Hirotaka Matsuo  
2nd Author's Affiliation Nagoya Institute of Technology (Nagoya Inst.Tech.)
3rd Author's Name Takuma Kyo  
3rd Author's Affiliation Nagoya Institute of Technology (Nagoya Inst.Tech.)
4th Author's Name Yozo Shoji  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Yoshihisa Takayama  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Morio Toyoshima  
6th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2011-08-25 09:55:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2011-18, RCS2011-113 
Volume (vol) vol.111 
Number (no) no.179(SAT), no.180(RCS) 
Page pp.13-17 
#Pages 5 
Date of Issue 2011-08-18 (SAT, RCS) 

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