The approximate capacity of the Gaussian N-relay diamond network

U Niesen, SN Diggavi - IEEE Transactions on Information …, 2012 - ieeexplore.ieee.org
We consider the Gaussian “diamond” or parallel relay network, in which a source node
transmits a message to a destination node with the help of N relays. Even for the symmetric …

Achieving the Capacity of the -Relay Gaussian Diamond Network Within log Bits

B Chern, A Özgür - IEEE Transactions on Information Theory, 2014 - ieeexplore.ieee.org
We consider the-relay Gaussian diamond network where a source node communicates to a
destination node via parallel relays through a cascade of a Gaussian broadcast (BC) and a …

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 …

Optimizing quantize-map-and-forward relaying for Gaussian diamond networks

A Sengupta, IH Wang, C Fragouli - 2012 IEEE Information …, 2012 - ieeexplore.ieee.org
We evaluate the information-theoretic achievable rates of Quantize-Map-and-Forward (QMF)
relaying schemes over Gaussian N-relay diamond networks. Focusing on vector Gaussian …

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 …

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 …

Wireless network simplification: The Gaussian N-relay diamond network

C Nazaroglu, A Özgür, C Fragouli - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
We consider the Gaussian N-relay diamond network, where a source wants to communicate
to destination node through a layer of N-relay nodes. We investigate the following question …

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 …

Cut-set bound is loose for Gaussian relay networks

X Wu, A Özgür - IEEE Transactions on Information Theory, 2017 - ieeexplore.ieee.org
The cut-set bound developed by Cover and El Gamal in 1979 has since remained the best
known upper bound on the capacity of the Gaussian relay channel. We develop a new …

A simple relaying strategy for diamond networks

S Brahma, C Fragouli - 2014 IEEE International Symposium on …, 2014 - ieeexplore.ieee.org
We consider a Gaussian diamond network where a source communicates with the
destination through n noninterfering half-duplex relays. Using simple approximations to the …