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JMLR
2012
7 years 1 months ago
Message-Passing Algorithms for MAP Estimation Using DC Programming
We address the problem of finding the most likely assignment or MAP estimation in a Markov random field. We analyze the linear programming formulation of MAP through the lens of...
Akshat Kumar, Shlomo Zilberstein, Marc Toussaint
CISS
2011
IEEE
8 years 2 months ago
On the capacity region of multiple-access relay channels
The capacity regions of two classes of multiple­ access relay channels (MARes) are characterized. The MARes studied in this paper include a primitive relay component, which can he...
Ravi Tandon, H. Vincent Poor
CISS
2010
IEEE
8 years 2 months ago
On the symmetric capacity of the K-user symmetric cyclic Gaussian interference channel
Abstract—The capacity region of Gaussian interference channel in the weak interference regime is an open problem. Recently, Etkin, Tse and Wang derived an outer bound for the two...
Lei Zhou, Wei Yu
CORR
2011
Springer
221views Education» more  CORR 2011»
8 years 2 months ago
Degrees of Freedom Region of the Gaussian MIMO Broadcast Channel with Common and Private Messages
We consider the Gaussian multiple-input multiple-output (MIMO) broadcast channel with common and private messages. We obtain the degrees of freedom (DoF) region of this channel. W...
Ersen Ekrem, Sennur Ulukus
TIT
2008
86views more  TIT 2008»
8 years 11 months ago
An Improved Outer Bound for Multiterminal Source Coding
We prove a new outer bound on the rate
Aaron B. Wagner, Venkat Anantharam
CORR
2006
Springer
136views Education» more  CORR 2006»
8 years 11 months ago
On the Capacity of Multiple Access Channels with State Information and Feedback
In this correspondence, the multiple access channel (MAC) with channel state is analyzed in a scenario where a) the channel state is known non-causally to the transmitters and b) t...
Wei Wu, Sriram Vishwanath, Ari Arapostathis
CORR
2006
Springer
117views Education» more  CORR 2006»
8 years 11 months ago
The Gaussian Multiple Access Wire-Tap Channel with Collective Secrecy Constraints
We consider the Gaussian Multiple Access Wire-Tap Channel (GMAC-WT). In this scenario, multiple users communicate with an intended receiver in the presence of an intelligent and in...
Ender Tekin, Aylin Yener
ETT
2008
100views Education» more  ETT 2008»
8 years 11 months ago
On the capacity of interference channels with one cooperating transmitter
Inner and outer bounds are established on the capacity region of two-sender, two-receiver interference channels where one transmitter knows both messages. The transmitter with extr...
Ivana Maric, Andrea J. Goldsmith, Gerhard Kramer, ...
CORR
2008
Springer
109views Education» more  CORR 2008»
8 years 11 months ago
Dependence Balance Based Outer Bounds for Gaussian Networks with Cooperation and Feedback
We obtain new outer bounds on the capacity regions of the two-user multiple access channel with generalized feedback (MAC-GF) and the two-user interference channel with generalize...
Ravi Tandon, Sennur Ulukus
CORR
2008
Springer
103views Education» more  CORR 2008»
8 years 11 months ago
An outer bound for 2-receiver discrete memoryless broadcast channels
Abstract-- An outer bound to the discrete memoryless broadcast channel is presented. We compare it to the known outer bounds and show that the outer bound presented is at least as ...
Chandra Nair
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