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


Vol. 33,  No. 2, pp. 210-217, Feb.  2008


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  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 cancellor, 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-cancellor.

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  Cite this article

[IEEE Style]

D. Kim, S. Park, S. Park, S. Yoon, Y. Lee, "Performance Evaluation of Equalization based On-Channel Repeater for Terrestrial Digital Multimedia Broadcast," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 210-217, 2008. DOI: .

[ACM Style]

Dong-hyun Kim, So-ra Park, Sung-ik Park, Seok-hyun Yoon, and Yong-tae Lee. 2008. Performance Evaluation of Equalization based On-Channel Repeater for Terrestrial Digital Multimedia Broadcast. The Journal of Korean Institute of Communications and Information Sciences, 33, 2, (2008), 210-217. DOI: .

[KICS Style]

Dong-hyun Kim, So-ra Park, Sung-ik Park, Seok-hyun Yoon, Yong-tae Lee, "Performance Evaluation of Equalization based On-Channel Repeater for Terrestrial Digital Multimedia Broadcast," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 210-217, 2. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880