Performance Analysis of LDPC Codes Using a Optical Orthogonal Structure
Qi Yu · Electronic Engineer · 2008
This paper analyses some different structures of H matrix for LDPC codes.For a rate 4/5 LDPC codes with block length 990 simulated on AWGN channel using belief propagation,first we analysis the performance of LDOC using random structure,then construct LDPC using a optical orthogonal structure and optimal the structure.Simulation results show that OOC-LDPC codes outperform random codes,and have quasi-cyclic structure.