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In this paper, we propose a linear programming (LP) decoding scheme for binary error-erasure channel for use in two-dimensional magnetic recording. We compare the performance of this decoding scheme with other decoding schemes like LP decoding for BSC and belief-propagation decoding. Also, we compare the effect of variance of grain-area in the medium on the bit-error rates of various decoding schemes.
We consider the problem of joint detection and decoding of low-density parity-check (LDPC) coded signals over partial response (PR) channels. A method to graphically represent the constraints imposed by the channel and the code on the channel output sequence is introduced. This enables the design of a detector and decoder that estimates a posteriori probabilities of noiseless channel output symbols...
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