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This paper presents a non-binary finite-stat Markov channel (FSMC) that captures both the soft-decision information and the temporal correlation of a discrete fading channel (DFC) with 2ξ quantization levels. The parameters of the FSMC that approximate the DFC with fixe parameters are found using the Baum-Welch algorithm. An iterative decoding scheme, based on the sum-product algorithm, is also discussed...
A discrete (binary-input 2^q-ary output) communication channel with memory is introduced to judiciously capture both the statistical memory and the soft-decision information of a time-correlated discrete fading channel (DFC) used with antipodal signaling and soft output quantization of resolution q. The discrete channel, which can be explicitly described via its binary input process and a 2^q-ary...
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