4 papers
Optimization of NB QC-LDPC Block Codes and Their Performance Analysis
Irina E. Bocharova, Boris D. Kudryashov, Evgenii P. Ovsyannikov +2
We propose an approach for optimizing nonbinary (NB) quasi-cyclic (QC) LDPC codes. This approach combines constructing of base parity-check matrices by simulated annealing and labe…
Stopping Redundancy Hierarchy Beyond the Minimum Distance
Yauhen Yakimenka, Vitaly Skachek, Irina E. Bocharova +1
Stopping sets play a crucial role in failure events of iterative decoders over a binary erasure channel (BEC). The -th stopping redundancy is the minimum number of rows in th…
Distance Properties of Short LDPC Codes and their Impact on the BP, ML and Near-ML Decoding Performance
Irina E. Bocharova, Boris D. Kudryashov, Vitaly Skachek +1
Parameters of LDPC codes, such as minimum distance, stopping distance, stopping redundancy, girth of the Tanner graph, and their influence on the frame error rate performance of th…
BP-LED decoding algorithm for LDPC codes over AWGN channels
Irina E. Bocharova, Boris D. Kudryashov, Vitaly Skachek +1
A new method for low-complexity near-maximum-likelihood (ML) decoding of low-density parity-check (LDPC) codes over the additive white Gaussian noise channel is presented. The prop…