Results 21 to 30 of about 14,194 (154)

Communicating over Filter-and-Forward Relay Networks with Channel Output Feedback [PDF]

open access: yes, 2015
Relay networks aid in increasing the rate of communication from source to destination. However, the capacity of even a three-terminal relay channel is an open problem.
Agrawal, Mayur   +2 more
core   +1 more source

Capacity Theorems for the Fading Interference Channel with a Relay and Feedback Links [PDF]

open access: yes, 2012
Handling interference is one of the main challenges in the design of wireless networks. One of the key approaches to interference management is node cooperation, which can be classified into two main types: relaying and feedback. In this work we consider
Dabora, Ron, Zahavi, Daniel
core   +2 more sources

Optimal Feedback Communication via Posterior Matching [PDF]

open access: yes, 2010
In this paper we introduce a fundamental principle for optimal communication over general memoryless channels in the presence of noiseless feedback, termed posterior matching.
Feder, Meir, Shayevitz, Ofer
core   +2 more sources

Quantum Markovian Subsystems: Invariance, Attractivity, and Control

open access: yes, 2008
We characterize the dynamical behavior of continuous-time, Markovian quantum systems with respect to a subsystem of interest. Markovian dynamics describes a wide class of open quantum systems of relevance to quantum information processing, subsystem ...
Ticozzi, Francesco, Viola, Lorenza
core   +2 more sources

Anytime communication over the Gilbert-Eliot channel with noiseless feedback [PDF]

open access: yesProceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
We study the reliability of sequential codes in a two-state Markov fading AWGN channel under the assumption of noiseless feedback and an average power constraint. We present a capacity achieving scheme with a doubly exponential anytime reliability function with respect to delay for every bit.
Anant Sahai   +2 more
openaire   +1 more source

The adaptive zero-error capacity for a class of channels with noisy feedback

open access: yes, 2017
The adaptive zero-error capacity of discrete memoryless channels (DMC) with noiseless feedback has been shown to be positive whenever there exists at least one channel output "disprover", i.e.
Asadi, Meysam, Devroye, Natasha
core   +2 more sources

Interactive Schemes for the AWGN Channel with Noisy Feedback

open access: yes, 2017
We study the problem of communication over an additive white Gaussian noise (AWGN) channel with an AWGN feedback channel. When the feedback channel is noiseless, the classic Schalkwijk-Kailath (S-K) scheme is known to achieve capacity in a simple ...
Ben-Yishai, Assaf, Shayevitz, Ofer
core   +1 more source

An Achievable Rate Region for the Broadcast Channel with Feedback

open access: yes, 2013
A single-letter achievable rate region is proposed for the two-receiver discrete memoryless broadcast channel with generalized feedback. The coding strategy involves block-Markov superposition coding, using Marton's coding scheme for the broadcast ...
Pradhan, S. Sandeep   +1 more
core   +1 more source

Coupled Fluid–Structure–Acoustic Analysis of Flow‐Induced Noise Control Using an Elastic Baffle in a Micro Channel

open access: yesEnergy Science &Engineering, EarlyView.
This research explores how fluid flow, structural movement, and sound interact in an elastic baffle system. Using a numerical approach based on the finite element method, the study analyzes how noise and vibrations change with different baffle configurations. The findings reveal that shortening the baffle by half reduces noise transmission by 9%, while
Tohid Adibi   +5 more
wiley   +1 more source

Identification via Quantum Channels in the Presence of Prior Correlation and Feedback

open access: yes, 2004
Continuing our earlier work (quant-ph/0401060), we give two alternative proofs of the result that a noiseless qubit channel has identification capacity 2: the first is direct by a "maximal code with random extension" argument, the second is by showing ...
Winter, Andreas
core   +5 more sources

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