Author/Authors :
KALAYCIOGLU, Aykut Ankara Üniversitesi - Faculty of Engineering - Department of Electronics Engineering, TURKEY , URETEN, Oktay Communications Research Centre, CANADA , ILK, H. Gokhan Ankara Üniversitesi - Faculty of Engineering - Department of Electronics Engineering, TURKEY
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
