A design of rate-adaptive LDPC codes for distributed source coding using PEG algorithm

2010 ◽  
Author(s):  
Min Jang ◽  
Jin Whan Kang ◽  
Sang-Hyo Kim
Keyword(s):  
Source Coding ◽  
Ldpc Codes ◽  
Distributed Source Coding ◽  
Distributed Source ◽  
Rate Adaptive

Rate-adaptive codes for distributed source coding

2006 ◽  
Vol 86 (11) ◽  
pp. 3123-3130 ◽  
Author(s):  
David Varodayan ◽  
Anne Aaron ◽  
Bernd Girod
Keyword(s):  
Source Coding ◽  
Distributed Source Coding ◽  
Distributed Source ◽  
Rate Adaptive

scholarly journals A Doping Bits Based BP Decoding for Rateless Distributed Source Coding Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
N. M. Masoodhu Banu ◽  
S. Sasikumar
Keyword(s):  
Belief Propagation ◽  
Source Coding ◽  
Ldpc Codes ◽  
Distributed Source Coding ◽  
Decoding Algorithm ◽  
Likelihood Ratios ◽  
Regular Source ◽  
Log Likelihood ◽  
Rate Adaptive ◽  
Decoder Complexity

A novel doping bits based belief propagation decoding algorithm, for rate-adaptive LDPC codes based on fixed bipartite graph code, is proposed. The proposed work modifies the decoding algorithm, by converting the puncturing nodes to regular source nodes and by following the encoding rule at the decoder. The transmitted doping bits in place of punctured bits, with the modified decoding algorithm at the decoder, feed all the punctured nodes with reliable log likelihood ratios. This enables the proposed decoding algorithm to recover all punctured nodes in the early iteration. The fast convergence leads to decoder complexity reduction while providing considerable improvement in performance.

scholarly journals Rate-adaptive BCH codes for distributed source coding

2013 ◽  
Vol 2013 (1) ◽  
Author(s):  
Matteo Salmistraro ◽  
Knud J Larsen ◽  
Søren Forchhammer
Keyword(s):  
Source Coding ◽  
Distributed Source Coding ◽  
Bch Codes ◽  
Distributed Source ◽  
Rate Adaptive
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