Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Jack K. Wolf"'
Publikováno v:
IEEE Transactions on Information Theory. 62:793-810
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 channel with only deletions, we obtain an expression for the symmetric
Publikováno v:
ISIT
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 the belief propagation thresholds approach capacity, as well as for f
Publikováno v:
IEEE Transactions on Information Theory. 58:5985-5999
A write-once memory (WOM) is a storage device that consists of cells that can take on $q$ values, with the added constraint that rewrites can only increase a cell's value. A length- $n$ , $t$ -write WOM-code is a coding scheme that allows $t$ message
Autor:
Giovanni Emanuele Corazza, Paul H. Siegel, Aravind R. Iyengar, Marco Papaleo, Alessandro Vanelli-Coralli, Jack K. Wolf
Publikováno v:
IEEE Transactions on Information Theory. 58:2303-2320
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 identify certain characteristics of LDPC convolutional code ensembles th
Publikováno v:
IEEE Transactions on Magnetics. 47:35-45
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 both substitution-like errors and insertion-deletion errors whose stati
Publikováno v:
IEEE Transactions on Magnetics. 46:3639-3647
We compare several different detection and equalization methods for bit patterned media recording channels. We consider a scheme that utilizes a joint-track equalization technique followed by a Viterbi detector. For certain recording densities, simul
Publikováno v:
IEEE Transactions on Magnetics. 46:819-824
We present a parametric study of inter-track interference (ITI) in the context of bit patterned media (BPM) recording channels. Bit error rate (BER) simulation results for optimal bit detection at moderate-to-high signal-to-noise-ratio (SNR) show tha
Publikováno v:
IEEE Journal on Selected Areas in Communications. 28:158-166
In high density perpendicular magnetic recording channels, nonlinear transition shift (NLTS) is one of the distortions that can degrade the system performance. Write precompensation is a standard method used to combat the negative effect of NLTS. In
Publikováno v:
IEEE Transactions on Magnetics. 44:3761-3764
In high-density perpendicular magnetic recording channels, nonlinear transition shift (NLTS) is one of the distortions that can degrade the system performance. Write precompensation is a standard method used to combat the negative effect of NLTS. In
Publikováno v:
IEEE Transactions on Magnetics. 43:721-726
To optimize a high-density magnetic recording system, one needs to know the tradeoffs between various components of the system including the read/write transducers, the magnetic medium, and the read channel. In this paper, we consider a channel model