direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Inhalt des Dokuments

Information: All seminars and talks are presented in English, unless otherwise noted. Therefore, this page is only available in the English language.

Invitation to a talk by Dr. Samir M. Perlaza, Laboratoire CITI (INRIA - Université de Lyon - INSA de Lyon), Lyon France

18 November 2016, 12:00 PM
HFT - Hochfrequenztechnik building, 6th floor, 
Room HFT-TA 617, Einsteinufer 25, 10587 Berlin
On the Benefits of Feedback in Wireless Communications


In this talk, the key role of feedback is highlighted in two fundamental problems: (a) interference management in wireless networks; and  (b) simultaneous wireless energy and information transmission. In the former, channel-output feedback is shown to be instrumental in increasing the capacity of the Gaussian interference channel due to the fact that it induces a kind of transmitter cooperation. Interestingly, this cooperation appears naturally given the broadcast nature of wireless channels independently of whether or not transmitters intend to cooperate. Thus, despite the nature of the network, i.e., centralized or decentralized, there always exists a non-negligible benefit when using channel output feedback. In the latter, channel-output feedback is shown to be beneficial when several transmitters intend to transmit information to a destination and energy to an energy harvester. In this case, also known as multiple access channel with energy harvester, all information and energy rates that are achievable are fully described with and without feedback. In the centralized case, channel-output feedback can at most double the energy rate given a fixed information rate. In the decentralized case, depending on the decoding scheme at the receiver, channel-output feedback allows the achievability of some Pareto optimal network equilibrium operating points. 


Samir M. Perlaza is an INRIA research scientist in the Laboratoire CITI (INRIA - Université de Lyon - INSA de Lyon) at Lyon France.  He is also a visiting research collaborator at the School of Applied Science at Princeton University (NJ, USA). He received the M.Sc. and Ph.D. degrees from Ecole Nationale Supérieure des Télécommunications (Telecom ParisTech), Paris, France, in 2008 and 2011, respectively. Previously, from 2008 to 2011, he was a Research Engineer at France Télécom – Orange Labs (Paris, France). He has held long-term academic appointments at the Alcatel-Lucent Chair in Flexible Radio at Supélec (Gif-sur-Yvette, France); at Princeton University (Princeton, NJ) and at the University of Houston (Houston, TX). His research interests lie in the overlap of signal processing, information theory, game theory and wireless communications. Dr. Perlaza has been distinguished by the European Commission with an Alban Fellowship in 2006 and a Marie Skłodowska-Curie Fellowship in 2015. He was also one of the recipients of the the Best Student Paper Award at Crowncom in 2009.

Zusatzinformationen / Extras


Schnellnavigation zur Seite über Nummerneingabe