IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Improved gradient descent bit flipping decoder for LDPC codes on BSC channel
Dao RenJin Sha
Author information
JOURNALS FREE ACCESS

2018 Volume 15 Issue 8 Pages 20180195

Details
Abstract

Low-Density Parity-Check (LDPC) codes have capacity-approaching error-correction performance which makes them popular in communication system. Gradient descent bit flipping (GDBF) algorithms show an error correction capability superior to most known BF algorithms. In this paper, we propose an improved gradient descent bit flipping (IGDBF) algorithm for LDPC codes on BSC channel. Compared to GDBF algorithm, the proposed algorithm reconstructs the composition of energy function, and adds a penalty term to help it converge. Simulations show that the proposed algorithm has good performance and fast convergence rate.

Information related to the author
© 2018 by The Institute of Electronics, Information and Communication Engineers
Previous article Next article
feedback
Top