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Soft-Decoding Algorithm of 3/4 Tone-Controllable Code with Low-Density Parity Check Code for Holographic Data Storage

2011; Institute of Physics; Volume: 50; Issue: 9S1 Linguagem: Inglês

10.1143/jjap.50.09me11

1347-4065

Donghyuk Park, Jaejin Lee,

Cellular Automata and Applications

We propose a soft-decoding algorithm of the 3/4 tone-controllable (TC) code, which has the advantage of controlling the ratio of ON and OFF pixels within each data page. The soft-decoded output maximizes the performance of the low density parity check (LDPC) code which is an outer error control code in holographic data storage systems. We simulate the performance of the soft-decoded 3/4 TC code with the LDPC code. The proposed soft-decoding algorithm can be applied to other modulation codes.