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CORR
2008
Springer
130views Education» more  CORR 2008»
13 years 4 months ago
Asymptotically Good LDPC Convolutional Codes Based on Protographs
LDPC convolutional codes have been shown to be capable of achieving the same capacity-approaching performance as LDPC block codes with iterative message-passing decoding. In this p...
David G. M. Mitchell, Ali Emre Pusane, Kamil Sh. Z...
CORR
2008
Springer
79views Education» more  CORR 2008»
13 years 4 months ago
Free Distance Bounds for Protograph-Based Regular LDPC Convolutional Codes
In this paper asymptotic methods are used to form lower bounds on the free distance to constraint length ratio of several ensembles of regular, asymptotically good, protographbased...
David G. M. Mitchell, Ali Emre Pusane, Norbert Goe...
AAECC
2006
Springer
122views Algorithms» more  AAECC 2006»
13 years 8 months ago
Low-Floor Tanner Codes Via Hamming-Node or RSCC-Node Doping
We study the design of structured Tanner codes with low error-rate floors on the AWGN channel. The design technique involves the "doping" of standard LDPC (proto-)graphs,...
Shadi Abu-Surra, Gianluigi Liva, William E. Ryan
GLOBECOM
2007
IEEE
13 years 11 months ago
Ensemble Enumerators for Protograph-Based Generalized LDPC Codes
— Protograph-based LDPC codes have the advantages of a simple design (or search) procedure and highly structured encoders and decoders. These advantages have also been exploited ...
Shadi Abu-Surra, William E. Ryan, Dariush Divsalar
TIT
2010
144views Education» more  TIT 2010»
12 years 11 months ago
Generalized and doubly generalized LDPC codes with random component codes for the binary erasure channel
In this paper, a method for the asymptotic analysis of generalized low-density parity-check (GLDPC) codes and doubly generalized low-density parity-check (D-GLDPC) codes over the b...
Enrico Paolini, Marc P. C. Fossorier, Marco Chiani