Application Analysis of LDPC Codes in 8PSK Modulation
Xin Peng · Jisuanji gongcheng · 2010
This paper investigates LLR algorithm of Low-Density Parity-Check(LDPC) codes in 8 Phase-Shift Keying(8PSK).The computation of the initial information of LDPC is analyzed in 8PSK modulation.The formulas of the computation of the initial information are deduced,and the algorithm is simulated.Simulation results indicate that the decoding performance of LDPC is excellent in 8PSK modulation.For example,the BER can reach 10-6 at 3.5 dB SNR.