2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications 2009
DOI: 10.1109/pimrc.2009.5450029
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Mismatched source transition probability matrix for adaptive MAP decoding in MPEG-4 imagery wireless transmission systems

Abstract: Here, we design the efficient technique of transmitting the source transition probability matrix (STPM) by accompanied with the lowest frequency subband (LFS). The entries of this stochastic matrix are adaptively computed by applying the first order Markov model with MPEG-4 zerotree sequences. Because of channel disturbances, we obtain the mismatched STPM at the ML-Viterbi receiver and then employ it for newly computed branch metrics at the MAP source-controlled channel decoder. For analysis, we also evaluate … Show more

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