Title :
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
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;
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
DOI :
10.1109/ISCCSP.2008.4537192
