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» Analysis of Absorbing Sets for Array-Based LDPC Codes
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ICC
2007
IEEE
113views Communications» more  ICC 2007»
14 years 1 months ago
Analysis of Absorbing Sets for Array-Based LDPC Codes
— Low density parity check codes (LDPC) are known to perform very well under iterative decoding. However, these codes also exhibit a change in the slope of the bit error rate (BE...
Lara Dolecek, Zhengya Zhang, Venkat Anantharam, Ma...
TIT
2010
103views Education» more  TIT 2010»
13 years 1 months ago
Analysis of absorbing sets and fully absorbing sets of array-based LDPC codes
The class of low-density parity-check (LDPC) codes is attractive, since such codes can be decoded using practical message-passing algorithms, and their performance is known to app...
Lara Dolecek, Zhengya Zhang, Venkat Anantharam, Ma...
ICC
2011
IEEE
217views Communications» more  ICC 2011»
12 years 6 months ago
Controlling LDPC Absorbing Sets via the Null Space of the Cycle Consistency Matrix
— This paper focuses on controlling absorbing sets for a class of regular LDPC codes, known as separable, circulantbased (SCB) codes. For a specified circulant matrix, SCB codes...
Jiadong Wang, Lara Dolecek, Richard D. Wesel
ICC
2007
IEEE
124views Communications» more  ICC 2007»
14 years 1 months ago
Quantization Effects in Low-Density Parity-Check Decoders
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders. In particular, the quantization schem...
Zhengya Zhang, Lara Dolecek, Martin J. Wainwright,...
GLOBECOM
2008
IEEE
14 years 1 months ago
Lowering LDPC Error Floors by Postprocessing
−A class of combinatorial structures, called absorbing sets, strongly influences the performance of low-density paritycheck (LDPC) decoders at low error rates. Past experiments h...
Zhengya Zhang, Lara Dolecek, Borivoje Nikolic, Ven...