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In this paper the performance evaluation of the low-density parity-check (LDPC) and Reed-Solomon (RS) codes over wireless channels is presented. These codes are used as the forward error correction (FEC) technique to protect source data prior transmission over wireless channel. The system simulation includes the use of additive White gaussian noise (AWGN) as the wireless channel, while a grayscale...
A modified joint source channel decoding (JSCD) algorithm based on low-density parity-check (LDPC) coding and hidden Markov estimation is proposed to employ the self-checking mechanism of LDPC codes in adjusting the error probability p of the hidden Markov model (HMM) and the JSCD scheme utilizes the source residual redundancy while no priori information of the source parameters is available. We also...
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