Simulation-based validation of improved BP-Based decoding algorithms of LDPC codes

Author

Abdelhedi, Manel ; Tlili, Fethi ; Slama, Larbi Ben Hadj

Author_Institution

SYSCOM Lab., ENIT, Tunis

fYear

2008

Firstpage

58

Lastpage

61

Abstract

Low-density parity-check (LDPC) codes deliver very good performance when decoded with the BP algorithm. Unfortunately, this algorithm has the disadvantage to be complex for implementation. In this paper, we investigate the BP algorithm and its simplifications (BP-based, normalized BP-based, offset BP-based). Previous works on normalized and offset BP-based proposed theoretical values for the offset and normalization factors, we perform simulations which allow to validate these theoretical results.

Keywords

decoding; matrix algebra; parity check codes; BP-based decoding algorithms; LDPC codes; low-density parity-check codes; normalization factors; simulation-based validation; Binary phase shift keying; Bipartite graph; Block codes; Decoding; Digital video broadcasting; Equations; Laboratories; Parity check codes; Signal to noise ratio; Sparse matrices; BP algorithm; BP-Based algorithm; LDPC codes; normalized BP-Based algorithm; offset BP-Based algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Control and Signal Processing, 2008. ISCCSP 2008. 3rd International Symposium on

Conference_Location

St Julians

Print_ISBN

978-1-4244-1687-5

Electronic_ISBN

978-1-4244-1688-2

Type

conf

DOI

10.1109/ISCCSP.2008.4537192

Filename

4537192