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Paper Abstract and Keywords
Presentation 2017-03-03 09:00
[Panel Discussion] Single Frequency Retransmission Technology in Digital Terrestrial Television Broadcasting -- Practical Application of Coupling Loop Interference Canceller for On-channel Repeater in SFN --
Koichiro Imamura (NHK) SR2016-102
Abstract (in Japanese) (See Japanese page) 
(in English) In order to construct the Japanese DTTB (digital terrestrial television broadcasting) network on the limited frequency resources, on-channel repeaters that retransmit signals on the same frequency as the receiving signals in SFN (single frequency network) are equipped in some on-air relay stations. In an on-channel repeater, countermeasures against CLI (coupling loop interference) are required. The CLI is undesired feedback caused by the coupling between transmitting and receiving antennas in an on-channel repeater, and it can cause signal degradation and oscillation. To overcome this problem, NHK has researched and developed the CLI canceller as a compensation technology for an on-channel repeater. In this presentation, the principles and basic structure of the CLI canceller are explained. Then the road from basic studies to practical application of the CLI canceller is described.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / SFN / DTTB / On-channel Repeater / Coupling Loop Interference Canceller / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 480, SR2016-102, pp. 53-53, March 2017.
Paper # SR2016-102 
Date of Issue 2017-02-22 (SR) 
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 SR2016-102

Conference Information
Committee RCS SR SRW  
Conference Date 2017-03-01 - 2017-03-03 
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 SR 
Conference Code 2017-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Single Frequency Retransmission Technology in Digital Terrestrial Television Broadcasting 
Sub Title (in English) Practical Application of Coupling Loop Interference Canceller for On-channel Repeater in SFN 
Keyword(1) OFDM  
Keyword(2) SFN  
Keyword(3) DTTB  
Keyword(4) On-channel Repeater  
Keyword(5) Coupling Loop Interference Canceller  
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1st Author's Name Koichiro Imamura  
1st Author's Affiliation Japan Broadcasting Corporation (NHK)
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Speaker Author-1 
Date Time 2017-03-03 09:00:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2016-102 
Volume (vol) vol.116 
Number (no) no.480 
Page p.53 
#Pages 1 
Date of Issue 2017-02-22 (SR) 

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