A modified weighted bit-flipping algorithm for LDPC codes

Haigang Zhang, Dongfeng Yuan, Cheng Xiang Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, a modified weighted bit-flipping (WBF) algorithm is proposed for finite geometry Low-Density Parity-Check (FG-LDPC) codes. The calculation for the flipping function in the new method includes all the elements in sum product algorithm (SPA) instead of the minimum one in most existing methods. Simulation results show that the proposed method exhibits better performance than the best method available in the literature so far. The performances of different algorithms are also considered in random constructed LDPC codes. The reliability ratio based WBF (RRWBF) method performs the best in this kind of codes and the proposed method performs very closely to the RRWBF method. The decoding complexities for both FG-LDPC and random constructed LDPC are also analyzed.

Original languageEnglish
Title of host publicationIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008
Pages227-230
Number of pages4
Edition545 CP
DOIs
Publication statusPublished - 2008
EventIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008 - Beijing, China
Duration: 12 Oct 200815 Oct 2008

Conference

ConferenceIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008
CountryChina
CityBeijing
Period12/10/0815/10/08

Keywords

  • LDPC codes
  • SPA
  • WBF algorithm

Fingerprint Dive into the research topics of 'A modified weighted bit-flipping algorithm for LDPC codes'. Together they form a unique fingerprint.

Cite this