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Paper Abstract and Keywords
Presentation 2011-08-25 11:30
[Requested Talk] Development of the LDPC Coded and the Phase Reference Burst Signal Implemented Wide-Band Modem aiming at Super Hi-Vision Broadcasting via Satellite
Yoichi Suzuki, Akinori Hashimoto, Shoji Tanaka, Takeshi Kimura (NHK STRL) SAT2011-21 RCS2011-116
Abstract (in Japanese) (See Japanese page) 
(in English) Aiming at the realization of “Super Hi-Vision” (SHV) satellite broadcasting, NHK is studying a scheme for high-capacity transmission by Broadcasting Satellite Service (BSS) in the 21-GHz band. At first, we introduce the example cases of SHV transmission via satellite conducted by NHK and cooperators. Second, we mention a QPSK/8PSK wideband (300-MHz bandwidth) modem whose FEC scheme is the concatenation of LDPC and BCH code. The maximum symbol rate is 250 Mbaud and it can provide wide range of information bit rates from 251 Mbps (a combination of modulation and code rate is QPSK-1/2) to 677 Mbps (8PSK-9/10). LDPC coding has an excellent performance which is close to the “Shannon limit”. Therefore, the LDPC coded modem has to achieve robustness of synchronization against the very low C/N conditions under which LDPC code can demonstrate error correction performance. This is a strong motivation to periodically introduce a п/2 shifted BPSK based Phase Reference Burst Signal (PRBS) to the symbol frame. The performances evaluation by changing PRBS lengths is a focal point of this paper. We evaluate the transmission performances under IF loopback conditions as a whole to understand the effect of PRBS. C/N vs. BER and phase synchronization are fully investigated. Also, we report the performances under satellite-loop condition using the “WINDS” satellite.
Keyword (in Japanese) (See Japanese page) 
(in English) Satellite Broadcasting / Super Hi-Vision / WINDS / LDPC code / QPSK / 8PSK / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 180, RCS2011-116, pp. 27-32, Aug. 2011.
Paper # RCS2011-116 
Date of Issue 2011-08-18 (SAT, RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 SAT2011-21 RCS2011-116

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 RCS 
Conference Code 2011-08-RCS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) [Requested Talk] Development of the LDPC Coded and the Phase Reference Burst Signal Implemented Wide-Band Modem aiming at Super Hi-Vision Broadcasting via Satellite 
Sub Title (in English)  
Keyword(1) Satellite Broadcasting  
Keyword(2) Super Hi-Vision  
Keyword(3) WINDS  
Keyword(4) LDPC code  
Keyword(5) QPSK  
Keyword(6) 8PSK  
1st Author's Name Yoichi Suzuki  
1st Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
2nd Author's Name Akinori Hashimoto  
2nd Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
3rd Author's Name Shoji Tanaka  
3rd Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
4th Author's Name Takeshi Kimura  
4th Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
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Date Time 2011-08-25 11:30:00 
Presentation Time 30 
Registration for RCS 
Paper # IEICE-SAT2011-21,IEICE-RCS2011-116 
Volume (vol) IEICE-111 
Number (no) no.179(SAT), no.180(RCS) 
Page pp.27-32 
#Pages IEICE-6 
Date of Issue IEICE-SAT-2011-08-18,IEICE-RCS-2011-08-18 

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