The Design of Low Complexity Decoder Based on DVB-S2 LDPC

Zhong Xun Wang; Shuang Shuang Yin

doi:10.4028/www.scientific.net/AMM.239-240.911

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 239-240The Design of Low Complexity Decoder Based on...

The Design of Low Complexity Decoder Based on DVB-S2 LDPC

Abstract:

An improved codeword construction method was used to encode the BCH code and LDPC code in this paper according to the latest standard defined by digital video broadcasting standard(DVB), and moreover the data overflow problem was solved. The LDPC code was decoded by the reduced complexity Min-Sum decoding algorithm, in which the coefficient was studied. Fixed-point representation and decoder quantization were proposed and simulation results show that 6-bits and 16-bits uniform quantization can make close to the performance of unquantized decoder, which reduces the decoder complexity for hardware implementation.

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Periodical:

Applied Mechanics and Materials (Volumes 239-240)

Pages:

911-914

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.239-240.911

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Online since:

December 2012

Authors:

Zhong Xun Wang, Shuang Shuang Yin

Keywords:

(Non)Uniform Quantization, Confined Precision, Low-Delay, Low-Density Parity-Check (LDPC) Codes, Low-Storage, Second Generation Satellite Digital Video Broadcasting Standard (DVB-S2)

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References

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