A fast BER evaluation method for LDGM codes |
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| Authors: | Cheng-Chun Chang |
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| Institution: | a Department of Electrical Engineering, National Taipei University of Technology, Taipei, Taiwan, ROCb Department of Electrical and Computer Engineering, University of Pittsburgh, Pittsburgh, PA, USAc Gwangju Institute of Science and Technology (GIST), Republic of Korea |
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| Abstract: | Low-density generator matrix (LDGM) codes have recently drawn researchers’ attention thanks to their satisfying performance while requiring only moderate encoding/decoding complexities as well as to their applicability to network codes. In this paper, we aim to propose a fast simulation method useful to investigate the performance of LDGM code. Supported by the confidence interval analysis, the presented method is, for example, 108 times quicker than the Monte-Carlo computer simulation for bit-error-rate (BER) in 10−10 region. |
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| Keywords: | Density evolution Sum-product iterative decoding LDGM codes |
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