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Density evolution for two improved BP-based decoding algorithms of LDPC codes

delete2002-05-01
delete349
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M
M.P.C. Fossorier
DOI:10.1109/4234.1001666delete
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摘要

摘要

En 中文
In this letter, we analyze the performance of two improved belief propagation (BP) based decoding algorithms for LDPC codes, namely the normalized BP-based and the offset BP-based algorithms, by means of density evolution. The numerical calculations show that with one properly chosen parameter for each of these two improved BP-based algorithms, performances very close to that of the BP algorithm can be achieved. Simulation results for LDPC codes with code length moderately long validate the proposed optimization.
Keyword:
block codes
density evolution
iterative decoding
LDPC codes

期刊

IEEE Communications Letters 封面图
IEEE Communications Letters
IF:
4.4
论文数:
1.3W
被引数:
2.2W

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