Performance Enhancement of the Feedback Interference Canceller for the EDOCR in the ATSC DTV System 


Vol. 38,  No. 11, pp. 955-966, Nov.  2013


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  Abstract

We propose two feedback interference cancellers(FICs) to improve the performance of the equalization digital on-channel repeater(EDOCR) with the FIC for the ATSC DTV broadcasting system. The FIC estimates the feedback channel between Tx. and Rx. antennas of the repeater by cross-correlating the reference signal and the feedback signal. Since there is a DC pilot which ruins the white property of the ATSC DTV signals, the FIC cannot estimate the feedback channel accurately. To solve the problem, the structural method which uses an additional DC pilot free reference for feedback channel estimation and the algorithmic method based on the digital signal processing which whitens the ATSC DTV signals and performs the feedback cancellation in the whitened signal domain. Simulation results show that the proposed two FICs show better feedback cancellation performance than the conventional FIC.

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  Cite this article

[IEEE Style]

Y. Lee, S. I. Park, H. M. Kim, H. Kim, "Performance Enhancement of the Feedback Interference Canceller for the EDOCR in the ATSC DTV System," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 11, pp. 955-966, 2013. DOI: .

[ACM Style]

Young-Jun Lee, Sung Ik Park, Heung Mook Kim, and Hyoung-Nam Kim. 2013. Performance Enhancement of the Feedback Interference Canceller for the EDOCR in the ATSC DTV System. The Journal of Korean Institute of Communications and Information Sciences, 38, 11, (2013), 955-966. DOI: .

[KICS Style]

Young-Jun Lee, Sung Ik Park, Heung Mook Kim, Hyoung-Nam Kim, "Performance Enhancement of the Feedback Interference Canceller for the EDOCR in the ATSC DTV System," The Journal of Korean Institute of Communications and Information Sciences, vol. 38, no. 11, pp. 955-966, 11. 2013.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880