Efficient implementation of parallel concatenated gallager codes with single encoder
G P Aswathy, Niyas K. Haneefa · 2016
Parallel Concatenated Gallager Codes (PCGCs) have proved to be an effective way to improve the bit error rate (BER) performance by increasing the redundancy at the same time reducing the encoding and decoding complexity when compared to dedicated Low Density Parity Check (LDPC) code of same length and code rate. Existing PCGC with single encoder has not been extensively successful due to its performance limitation, decoder complexity and decoding delay. In this paper we propose an efficient decoding methodology for PCGC with single encoder. We show that the proposed methodology outperforms existing PCGC with single encoder in terms of BER performance in AWGN channel. We also present that the proposed decoder is much less complex than existing one.