Turkish Journal of Electrical Engineering and Computer Sciences
Abstract
A piece-wise second order approximation to the f (x) = -log [tanh (x/2)] function is proposed to reduce the computational complexity of LDPC decoder's utilizing Log-Likelihood Ratio Belief Propagation (LLR-BP) algorithm based on Gallager's approach. Simulation results show that the proposed low complexity approximation doesn't cause BER performance degradation.
DOI
10.3906/elk-0811-14
First Page
1053
Last Page
1058
Recommended Citation
KALAYCIOĞLU, A, ÜRETEN, O, & İLK, H. G (2010). A second order approximation to reduce the complexity of LDPC decoders based on Gallager's approach. Turkish Journal of Electrical Engineering and Computer Sciences 18 (6): 1053-1058. https://doi.org/10.3906/elk-0811-14
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