A Partial Response Maximum Likelihood Detection Using Modified Viterbi Decoder for Asymmetric Optical Storage Channels 


Vol. 30,  No. 7, pp. 642-646, Jul.  2005


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  Abstract

We propose an improved partial response maximum likelihood (PRML) detector with the branch value compensation of Viterbi decoder for asymmetric high-density optical channel. Since the compensation value calculated by a survival path is applied to each branch metric, it reduces the detection errors by the asymmetric channel. The proposed PRML detection scheme improves the detection performance on the 2nd, 3rd and 4th order PR targets for asymmetric optical recording channel.

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  Cite this article

[IEEE Style]

K. Lee, J. Lee, J. Lee, "A Partial Response Maximum Likelihood Detection Using Modified Viterbi Decoder for Asymmetric Optical Storage Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 642-646, 2005. DOI: .

[ACM Style]

Kyusuk Lee, Joohyun Lee, and Jaejin Lee. 2005. A Partial Response Maximum Likelihood Detection Using Modified Viterbi Decoder for Asymmetric Optical Storage Channels. The Journal of Korean Institute of Communications and Information Sciences, 30, 7, (2005), 642-646. DOI: .

[KICS Style]

Kyusuk Lee, Joohyun Lee, Jaejin Lee, "A Partial Response Maximum Likelihood Detection Using Modified Viterbi Decoder for Asymmetric Optical Storage Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 7, pp. 642-646, 7. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880