High-speed simulation of partial response channels employing low density parity check (LDPC) codes

Toshihiro Horigome; Hongwei Song; Lingyan Sun; Bhagavatula V. K. Vijaya Kumar

doi:10.1117/12.533046

16 September 2003 High-speed simulation of partial response channels employing low-density parity check (LDPC) codes

Toshihiro Horigome, Hongwei Song, Lingyan Sun, Bhagavatula V. K. Vijaya Kumar

Proceedings Volume 5069, Optical Data Storage 2003; (2003) https://doi.org/10.1117/12.533046
Event: Optical Data Storage 2003, 2003, Vancouver, Canada

Abstract

We developed a high-speed simulator for partial response (PR) channels employing low density parity check (LDPC) codes. Bit error rate (BER) performances for channels employing PR(1,1) and PR(1,2,2,1) targets wtih blue laser and 0.85 numerical aperture (NA) are estimated by simulating up to 10¹¹ data sampled which allowed us to estimate BERs as low as 10^-10. Three data detection methods (namely, a simple slicer, soft-output Viterbi algorithm or SOVA, and maximum a posteriori probability or MAP detector) followed by LDPC decoder are compared. We also show BER performance of our one-chip hardware LDPC decoder on additive white Gaussian noise channel.

Citation Download Citation

Toshihiro Horigome, Hongwei Song, Lingyan Sun, and Bhagavatula V. K. Vijaya Kumar "High-speed simulation of partial response channels employing low-density parity check (LDPC) codes", Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); https://doi.org/10.1117/12.533046

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