Digiteo seminar, September 9, 2014, 14h30, SupElec, Amphi F03-05 9 September 2014 Fundamental limits of cooperative interference networks, Daniela TUNINETTI, CR CNRS, Leader of the emergence project " IndexCod", Labex Digicosme
The bottleneck of today’s wireless networks is interference. The solution of commercial available networks is to avoid interference through division of resources (such as time, spectrum, space, waveform, etc.) among the competing users. This approach results in simple network architectures. It is also a theoretically optimal solution in the up-link and down-link of single-cell cellular systems with single antenna nodes in presence of fading when throughput maximization is the design goal. Perfect orthogonalization of users is however not possible in practice, in which case the residual interference is usually treated it as noise. ;It has become apparent however that interference avoidance and treating interference as noise are highly suboptimal in interference networks.Retour ligne automatique For example, when the power imbalance between the useful signal and the interfering signal at a destination is large enough, a receiver can first decode the interfering signal by treating its own signal as noise, and then decode its signal as in an interference-free channel. Retour ligne automatique More generally, it is possible to consolidate the aggregate interference into roughly half of the receiver available degrees of freedom and thus each user achieves half the rate it would get if it were alone on the network, irrespectively of the number of interferers. Moreover, node cooperation further improve on the overall network interference management problem. With these observations in mind, much progress has been made recently in understanding the ultimate performance limits of interference networks. Pour en savoir plus: http://www.digiteo.fr/9-sept-2014-fundamental-limits-of-cooperative

Yannis Manoussakis passed away
6 June 2021
We have just learned of the death of Yannis Manoussakis, Professor at the University of Paris-Saclay, on Saturday June 5.

He was the leader of the GALaC team and had been for many years director of the LRI, we lose a friend and a dear colleague.

Our

Semaine du cerveau : Cerveau connecté
16 March 2021

Wizard project
1 April 2021
Innovation Area: Public Safety, IoT, Mobility