- Turkish Journal of Electrical Engineering and Computer Science
- Vol: 18 Issue: 6
- A second order approximation to reduce the complexity of LDPC decoders based on Gallager's approach
A second order approximation to reduce the complexity of LDPC decoders based on Gallager's approach
Authors : Aykut Kalaycioğlu, Oktay Üreten, H. Gökhan Ilk
Pages : 1053-1058
View : 8 | Download : 1
Publication Date : 9999-12-31
Article Type : Makaleler
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.Keywords : Turk. J. Elec. Eng. & Comp. Sci., 18, (2010), 1053-1058. Full text: pdf Other articles published in the same issue: Turk. J. Elec. Eng. & Comp. Sci., vol.18, iss.6.