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Performance Evaluation of Equalization based On-Channel Repeater for Terrestrial Digital Multimedia Broadcast  

Kim, Dong-Hyun (단국대학교 전자컴퓨터공학부)
Park, So-Ra (한국전자통신연구원)
Park, Sung-Ik (한국전자통신연구원)
Yoon, Seok-Hyun (단국대학교 전자컴퓨터공학부)
Lee, Yong-Tae (한국전자통신연구원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.2A, 2008 , pp. 210-217 More about this Journal
Abstract
In this paper, the performance of equalization-based on-channel repeater for terrestrial DMB is analyzed. A primary concern in on-channel repeater is the performance degradation due to the echo and one of key component for on-channel repeater is the echo canceller, which usually employs LMS algorithm utilizing the repeater output as a reference for echo channel estimation and compensation. One problem using LMS algorithm is the tracking capability and there necessarily exists residual echo that has not been cancelled. To effectivelyremove the residual echo, we consider an equalization based on-channel repeater where the echo-cancellor is followed by an equalizer that performs channel estimation using pilot symbol and the channel inversion utilizing homomorphic decomposition. According to the simulation result, the performance degradation caused by the residual echo can be considerably alleviated by using the equalizer following the echo-canceller.
Keywords
Equalizer; Echo canceller; On-channel repeater; Terrestrial DMB;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 W. "Sam" Zborowski, 'Single Frequency Network Technique For Use With On-Channel Boosters For DTV Broadcast,' NAB Broadcast Engineering Conference Proceedings, 2001
2 Y. T. Lee, S. I. Park, S. W. Kim, and J. S. Seo, 'ATSC Terrestrial Digital Television Broadcasting using Single Frequency Networks,' ETRI Journal, vol. 26, No. 2, pp. 92-100, April 2004   DOI   ScienceOn
3 Y. T. Lee, S. I. Park, H. M. Eum, H. N. Kim, S. W. Kim, and S. I. Lee, 'A Novel Digital On-Channel Repeater for Single Frequency Network in ATSC System,' NAB Broadcast Engineering Conference Proceedings, pp. 128-133, 2004
4 A. V. Oppenheim and R. W. Schafer, 'Discrete-time Signal Processing,' Prentice Hall, 1989
5 Salehian, M. Guillet, B. Carson, and A. Kennedy, 'On-Channel Repeater for Digital Television Broadcasting Service,' IEEE Trans. on Broadcasting, Vol. 48, pp. 97-102, June 2002   DOI   ScienceOn
6 Y. T. Lee, S. I. Park, H. M. Eum, and S. W. Kim, 'Equalization Digital On-Channel Repeater (EDOCR) Development for Single Frequency Network,' ATSC T3S9 Meeting, Washington D. C, Jan. 2004
7 Salehian, B. Carson, and M. Guillet, 'Using on-channel repeater to improve reception in DTV broadcasting service area,' IEEE Trans. on Broadcasting, Vol. 49, pp. 309-313, Sept. 2003   DOI   ScienceOn
8 박성익, 음호민, 이용태, 김흥묵, 서재현, 김형남, 김승원, 'ATSC 지상파 디지털 TV 방송의 단일 주파수 망 구성을 위한 등화형 디지털 동일 채널 중계기,' 방송공학회논문지, 제9권, 제4호, pp 371-382, 2004년
9 Y. T. Lee, S. I. Park, H. M. Eum, S. W. Kim, and S. I. Lee, B. Ledoux, S. Lafleche, Y. Wu, 'Laboratory and Field Test Results of Equalization Digital On-Channel Repeater (EDOCR),' in NAB Broadcast Engineering Conference Proceeding, 2005
10 COST 207 Digital land mobile radio Communications, final report, September 1988
11 박성익, 이용태, 김승원, 이수인, '단일 주파수 망을 이용한 ATSC 지상파 디지털 TV 방송서비스를 위한 방법 연구,' 방송공학회논문지, 제8권, 제2호, pp. 109-115, 2003년