A New Way to Optimize LDPC Code in Multiple Access Channel

Jing Xi Zhang

doi:10.4028/www.scientific.net/AMR.989-994.4095

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994A New Way to Optimize LDPC Code in Multiple Access...

A New Way to Optimize LDPC Code in Multiple Access Channel

Abstract:

A new way to optimize the degree profiles for irregular LDPC codes in MAC is presented. The combination technology of differential evolution and density evolution is applied in the optimizing of degree distributions. By using a greedy algorithm we show the differential evolution method to seek the maximum noise threshold in MAC channels under different degree number and maximum degree condition.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

4095-4099

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.4095

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Online since:

July 2014

Authors:

Jing Xi Zhang*

Keywords:

Additive White Gaussian Noise (AWGN), Degree Profile, Density Evolution, Differential Evolution, Low Density Parity Check (LDPC) Codes, Multiple Access Channel (MAC)

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* - Corresponding Author

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