Title :
Channel decoding of systematically encoded unknown redundant sources
Author :
Ordentlich, Erik ; Seroussi, Gadiel ; Verdú, Sergio ; Viswanathan, Krishnamurthy ; Weinberger, Marcelo J. ; Weissman, Tsachy
Author_Institution :
Hewlett-Packard Lab., Palo Alto, CA, USA
fDate :
27 June-2 July 2004
Abstract :
This paper describes the channel decoding of systematically encoded unknown redundant sources. The redundancy of the data is known at the decoder and the channel decoder incorporates the statistics of the data to enhance the performance. The practical decoders are designed which takes the advantage of the source redundancy of systematically encoded for transmission over a discrete memoryless channel (DMC). The performance is achieved by operating discrete universal denoiser (DUDE) and the experiments involving Reed-Solomon codes show that DUDE-enhanced decoding is very effective at high rates.
Keywords :
Markov processes; Reed-Solomon codes; channel coding; error statistics; iterative decoding; memoryless systems; redundancy; DMC; DUDE; Reed-Solomon code; channel decoding; data statistics; discrete memoryless channel; discrete universal denoiser; redundant source; Belief propagation; Data compression; Distributed computing; Iterative decoding; Laboratories; Memoryless systems; Noise reduction; State estimation; Statistics; Viterbi algorithm;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365200