Modified weighted bit flipping algorithm based on intrinsic information for ldpc codes
M. Velmurugan, K Pargunarajan · 2017
This paper proposes a modified bit flipping algorithm and its weighted variants based on reliability derived from intrinsic information. Compared to other existing algorithms where extrinsic information based reliability was used in the flipping function, here intrinsic information based reliability is also equally considered. This algorithm only uses additions and subtractions to modify reliability as compared to other reliability based BF algorithms, which use multiplications and divisions. Hence, it offers good performance with a minimal increase in computational complexity.