Capacity approximations for Gaussian relay networks

R Kolte, A Özgür, A El Gamal - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Consider a Gaussian relay network where a source node communicates to a destination
node with the help of several layers of relays. Recent work has shown that compress-and …

Improved capacity approximations for Gaussian relay networks

R Kolte, A Özgür - 2013 IEEE Information Theory Workshop …, 2013 - ieeexplore.ieee.org
Consider a Gaussian relay network where a number of sources communicate to a
destination with the help of several layers of relays. Recent work has shown that a compress …

Approximate capacity of Gaussian relay networks

AS Avestimehr, SN Diggavi… - 2008 IEEE International …, 2008 - ieeexplore.ieee.org
We present an achievable rate for general Gaussian relay networks. We show that the
achievable rate is within a constant number of bits from the information-theoretic cut-set …

[PDF][PDF] Optimized noisy network coding for Gaussian relay networks

R Kolte, A Özgür, A El Gamal - … Zurich Seminar on …, 2014 - research-collection.ethz.ch
In this paper, we provide an improved lower bound on the rate achieved by noisy network
coding in arbitrary Gaussian relay networks, whose gap to the cutset upper bound depends …

Approximate capacity of Gaussian relay networks: Is a sublinear gap to the cutset bound plausible?

TA Courtade, A Özgür - 2015 IEEE International Symposium on …, 2015 - ieeexplore.ieee.org
Beginning with work by Avestimehr, Diggavi and Tse, there have been a series of papers
showing that the capacity of Gaussian relay networks can be closely approximated by the …

On the asymptotic capacity of Gaussian relay networks

M Gastpar, M Vetterli - Proceedings IEEE International …, 2002 - ieeexplore.ieee.org
We determine the asymptotic capacity of a Gaussian multiple-relay channel as the number
of relays tends to infinity. The upper bound is an application of the cut-set theorem, and the …

Capacity of the Gaussian relay channel with correlated noises to within a constant gap

L Zhou, W Yu - IEEE communications letters, 2011 - ieeexplore.ieee.org
This paper studies the relaying strategies and the approximate capacity of the classic three-
node Gaussian relay channel, but where the noises at the relay and at the destination are …

On the capacity of large Gaussian relay networks

M Gastpar, M Vetterli - IEEE Transactions on Information …, 2005 - ieeexplore.ieee.org
The capacity of a particular large Gaussian relay network is determined in the limit as the
number of relays tends to infinity. Upper bounds are derived from cut-set arguments, and …

Selective coding strategy for unicast composite networks

A Behboodi, P Piantanida - 2012 IEEE International …, 2012 - ieeexplore.ieee.org
Consider a composite unicast relay network where the channel statistic is randomly drawn
from a set of conditional distributions indexed by θ ϵ Θ, which is assumed to be unknown at …

On approximating Gaussian relay networks with deterministic networks

M Anand, PR Kumar - 2009 IEEE Information Theory Workshop, 2009 - ieeexplore.ieee.org
We examine the extent to which Gaussian relay networks can be approximated by
deterministic networks, and present two results, one negative and one positive. The gap …