Prof. Philippe Ciblat
Title: Hybrid ARQ optimizations for wireless networks
Abstract: In this talk, we focus on three ways to improve systems relying on Hybrid ARQ. First, we show that Hybrid ARQ mechanism can be significantly enhanced by doing superposition coding especially when the feedback is delayed. Second, HARQ can be adaptively modified according to previous channel conditions. Here we propose to select the modulation and coding scheme relevantly by using Markov Decision Process. Third, we consider multi-user resource allocation when HARQ is carried out. We especially address the energy efficiency as figure of merit and the Rician channel as propagation model. We show that the optimization process casts into the fractional programming framework.
Biography: Philippe Ciblat was born in Paris, France, in 1973. He received the Engineering degree from Ecole Nationale Superieure des Telecommunications (ENST, now called Telecom ParisTech) and the M.Sc. degree in automatic control and signal processing from University Paris-Sacaly, France, both in 1996, and the Ph.D. degree from University Paris-Est, France, in 2000. He eventually received the HDR degree from University Paris-Est, France, in 2007. In 2001, he was a Postdoctoral Researcher with University of Louvain, Belgium. In 2002, he joined Telecom ParisTech, as an Associate Professor. Since 2011, he has been (full) Professor in the same institution. He served as Associate Editor for the IEEE Communications Letters from 2004 to 2007. From 2008 to 2012, he served as Associate Editor and then Senior Area Editor for the IEEE Transactions on Signal Processing. From 2014, he is member of IEEE Technical Committee “Signal Processing for Communications and Networking”. From 2018, he serves as Associate Editor for the IEEE Transactions on Signal and Information Processing over Networks.