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Publications associées (167)

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Variational Information Maximization in Gaussian Channels

Recently, we introduced a simple variational bound on mutual information, that resolves some of the difficulties in the application of information theory to machine learning. Here we study a specific application to Gaussian channels. It is well known that ...

IDIAP2004

Gaussian multiple-access channels under received-power constraints

Michael Christoph Gastpar

Performance limits for multiple-access channels are well known as long as the messages of different nodes are independent. Considerable research efforts have been devoted to the problem when the source information is dependent across nodes, revealing capac ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2004

The distributed Karhunen-Loeve transform

Martin Vetterli, Michael Christoph Gastpar, Pier Luigi Dragotti

The Karhunen-Loeve transform (KLT) is a key element of many signal processing tasks, including approximation, compression, and classification. Many recent applications involve {\em distributed} signal processing where it is not generally possible to apply ...

2003

Probing Aerogels by Multiple Quantum Filtered 131Xe NMR Spectroscopy

Geoffrey Bodenhausen

At the interface between solid surfaces and cavities filled with gaseous or liq. Xe, the nuclear magnetization of 131Xe (S = 3/2) is subject to quadrupolar interactions which may lead to higher rank single-quantum coherences that can be described by tensor ...

2001

Analysis of optimal filter banks for multiple description coding

Martin Vetterli, Pier Luigi Dragotti

We study the problem of multiple description (MD) coding of stationary Gaussian sources with memory. First, we compute an approximate rate distortion region for these sources, which we prove to be asymptotically tight at high rates: this region generalizes ...

2000

Decoding Choice Encodings

We study two encodings of the asynchronous pi-calculus with input-guarded choice into its choice-free fragment. One encoding is divergence-free, but refines the atomic commitment of choice into gradual commitment. The other preserves atomicity, but introdu ...

2000

A Note on the Fairness of Additive Increase and Multiplicative Decrease

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

Some recent papers [KMT97, MR98] have shown that congestion control based on additive increase and multiplicative decrease tends to share bandwidth according to proportional fairness. Proportional fairness is a form of fairness which distributes bandwidth ...

1999

The Fairness of Additive Increase and Multiplicative Decrease

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

1999

Power system electromagnetic compatibility

Michel Ianoz, Renaud Ott

The development of techniques and companies is leading to an increase in performance and a decrease in the cost of products. This double development causes an increase in the sensitivity of technical systems, both from the point of view of the level of dis ...

1998

A Note on the Fairness of Additive Increase and Multiplicative Decrease

Jean-Yves Le Boudec, Patrick Thiran, Paul Hurley

Some recent papers have shown that congestion control based on additive increase and multiplicative decrease tends to share bandwidth according to proportional fairness. Proportional fairness is a form of fairness which distributes bandwidth with a bias in ...

1998