We discuss several aspects of coding for the asymmetric channel, with emphasis on iterative coding. We implement turboand LDPC decoders for the Z-channel, and a novel coding scheme designed to approach the optimum input distribution for the channel. Index terms Z-channel, iterative decoding, channel capacity.

In this paper, we discuss two-stage encoding algorithms capable of correcting a fraction asymmetric errors. Suppose that the encoder transmits $n$ binary symbols $(x_1,\ldots,x_n)$ one-by-one over Z-channel, in which 1 is received only if transmitted. At some designated moment, say $n_1$, uses noiseless feedback and adjusts further strategy based on partial output channel $(y_1,\ldots,y_{n_1})$...

We consider the two-user “Z” channel (ZC), where there are two senders and two receivers. One of the senders transmits information to its intended receiver (without interfering with the unintended receiver), while the other sender transmits information to both receivers. The complete characterization of the discrete memoryless ZC remains unknown to date. For the Gaussian ZC, the capacity has on...

Cardiac sodium channels are integral membrane proteins whose structure is not known at atomic level yet and their molecular kinetics is still being studied through mathematical modeling. This study has focused on adapting an existing model of cardiac Na channel to analyze molecular kinetics of channels at 9-37°C. Irvine et al developed a Markov model for Na channel using Neuronal Network Model ...

Cardiac sodium channels are integral membrane proteins whose structure is not known at atomic level yet and their molecular kinetics is still being studied through mathematical modeling. This study has focused on adapting an existing model of cardiac Na channel to analyze molecular kinetics of channels at 9-37°C. Irvine et al developed a Markov model for Na channel using Neuronal Network Model ...

In this paper, we consider encoding strategies for the Z-channel with noiseless feedback. We analyze combinatorial setting where maximum number of errors inflicted by an adversary is proportional to transmissions, which goes infinity. Without feedback, it known that rate optimal asymmetric-error-correcting codes error fraction <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns...

this study seeks to examine how a company can select the best intermediary for its marketing channels with minimum of criteria and time. a theoretical framework is proposed based on the most important tasks of intermediary and the criteria to measure them. there are four basic tasks and thirty criteria in three independent levels. subsequently, an exploratory case study in iranian food industry...

A classification of one-mode Gaussian channels is given up to canonical unitary equivalence. A complementary to the quantum channel with additive classical Gaussian noise is described providing an example of onemode Gaussian channel which is neither degradable nor anti-degradable. 1 The canonical form For a mathematical framework of linear Bosonic system used in this note the reader is referred...

The influence of nanofluid with different wave forms in the presence of inclined asymmetric channel on peristaltic transport of a pseudoplastic fluid is examined. The governing equations for two dimensional and two directional flows of a pseudoplastic fluid along with nanofluid are modeled and then simplified under the assumptions of long wavelength and low Reynolds number approximation. The ex...