Li Er-Bao, Lei Jing, Xu Fu-Bing. Design and Optimization of Degree Distributions of Irregular LDPC[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2788-2791. doi: 10.3724/SP.J.1146.2007.00799
Citation:
Li Er-Bao, Lei Jing, Xu Fu-Bing. Design and Optimization of Degree Distributions of Irregular LDPC[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2788-2791. doi: 10.3724/SP.J.1146.2007.00799
Li Er-Bao, Lei Jing, Xu Fu-Bing. Design and Optimization of Degree Distributions of Irregular LDPC[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2788-2791. doi: 10.3724/SP.J.1146.2007.00799
Citation:
Li Er-Bao, Lei Jing, Xu Fu-Bing. Design and Optimization of Degree Distributions of Irregular LDPC[J]. Journal of Electronics & Information Technology, 2008, 30(11): 2788-2791. doi: 10.3724/SP.J.1146.2007.00799
Good degree distributions can improve the error-floor and reduce the complication in encoding and decoding of LDPC. Under AWGN channel, Gaussian approximation algorithm can analyze the decoding threshold of LDPC presented by their degree distributions. Using differential evolution, the degree distributions that possess maximal threshold can be gotten. Through simulation results, the optimized degree distributions which possess a 0.15dB better noisy threshold than using linear algorithm.
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