212 citations · 269 across the 10 of their papers we have counts for
10 papers
Trust via Reputation of Conviction
Aravind R. Iyengar
The question of \emph{knowledge}, \emph{truth} and \emph{trust} is explored via a mathematical formulation of claims and sources. We define truth as the reproducibly perceived subs…
Analysis of Saturated Belief Propagation Decoding of Low-Density Parity-Check Codes
Shrinivas Kudekar, Tom Richardson, Aravind Iyengar
We consider the effect of log-likelihood ratio saturation on belief propagation decoder low-density parity-check codes. Saturation is commonly done in practice and is known to have…
A Novel Stochastic Decoding of LDPC Codes with Quantitative Guarantees
Nima Noorshams, Aravind Iyengar
Low-density parity-check codes, a class of capacity-approaching linear codes, are particularly recognized for their efficient decoding scheme. The decoding scheme, known as the sum…
The Effect of Saturation on Belief Propagation Decoding of LDPC Codes
Shrinivas Kudekar, Tom Richardson, Aravind Iyengar
We consider the effect of LLR saturation on belief propagation decoding of low-density parity-check codes. Saturation occurs universally in practice and is known to have a signific…
On the Capacity of Channels with Timing Synchronization Errors
Aravind R. Iyengar, Paul H. Siegel, Jack K. Wolf
We consider a new formulation of a class of synchronization error channels and derive analytical bounds and numerical estimates for the capacity of these channels. For the binary c…
Enhancing Binary Images of Non-Binary LDPC Codes
Aman Bhatia, Aravind R. Iyengar, Paul H. Siegel
We investigate the reasons behind the superior performance of belief propagation decoding of non-binary LDPC codes over their binary images when the transmission occurs over the bi…
Windowed Decoding of Spatially Coupled Codes
Aravind R. Iyengar, Paul H. Siegel, Rudiger L. Urbanke +1
Spatially coupled codes have been of interest recently owing to their superior performance over memoryless binary-input channels. The performance is good both asymptotically, since…
Modeling and Information Rates for Synchronization Error Channels
Aravind R. Iyengar, Paul H. Siegel, Jack K. Wolf
We propose a new channel model for channels with synchronization errors. Using this model, we give simple, non-trivial and, in some cases, tight lower bounds on the capacity for ce…
Write Channel Model for Bit-Patterned Media Recording
Aravind R. Iyengar, Paul H. Siegel, Jack K. Wolf
We propose a new write channel model for bit-patterned media recording that reflects the data dependence of write synchronization errors. It is shown that this model accommodates b…
Windowed Decoding of Protograph-based LDPC Convolutional Codes over Erasure Channels
Aravind Iyengar, Marco Papaleo, Paul Siegel +3
We consider a windowed decoding scheme for LDPC convolutional codes that is based on the belief-propagation (BP) algorithm. We discuss the advantages of this decoding scheme and id…