Research Article
The modified reliability-based iterative majority-logic decoding algorithm with non-uniform quantization
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694719, author={Haiqiang Chen and Lingshan Luo and Youming Sun and Tuanfa Qin}, title={The modified reliability-based iterative majority-logic decoding algorithm with non-uniform quantization}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={ldpc reliability-based decoding majority-logic decodable}, doi={10.1109/ChinaCom.2013.6694719} }- Haiqiang Chen
Lingshan Luo
Youming Sun
Tuanfa Qin
Year: 2013
The modified reliability-based iterative majority-logic decoding algorithm with non-uniform quantization
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694719
Abstract
This paper investigates the performances of the modified reliability-based iterative majority-logic decoding~(MRBI-MLGD) algorithm under different quantization schemes. An efficient non-uniform quantization method is presented for the MRBI-MLGD algorithm. With the non-uniform strategy, the real received symbols will be quantized into integer values before passing to the decoder. The quantized reliability measures exhibit a non-uniform distribution with respect to their original received signals. Furthermore, the quantization resolution can be modified as required. Simulation results show that, when combined with factor correction techniques and a proper quantization parameter $r$, the MRBI-MLGD with non-uniform quantization performs well with very small quantized bits (3-4 bits) and has very fast decoding convergence speed.