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Spring 2015
ECE RESEARCH SEMINAR
Robust Optimization and Inference in Cognitive Networks: A
Signal Processing Perspective
Dr. Antonio Marques, King Juan Carlos University, Madrid, Spain
Friday, April 10, 2015, 2:00pm – 2:50pm, Location: BB 3.04.18
Abstract
To improve system performance and end-user experience, the infrastructure of contemporary
networks is now more flexible, involved and autonomous. This renders the monitoring, operation
and dimensioning of the network more difficult. Successful execution of those tasks calls for a
rigorous design approach, including detailed modeling and analysis of the network and its
terminals. The scientific community is well aware of such needs and considerable progress has
been achieved. However, available solutions still have limitations with regards to rather simplistic
network models, separate design of optimization and monitoring tasks, and suboptimal use of
network state information (NSI). Our goal is to address these issues through a comprehensive
approach, shifting the focus from heuristic to rigorous optimization-based formulations. Networks
are modeled as dynamic systems, where nodes and controllers, endowed with cognitive
capabilities, make smart decisions about the network operation; and where optimization and
monitoring are designed jointly and robustly in the face of the uncertain NSI. The premise is that
the stochastic optimization and stochastic SIP tools are essential to deal with the uncertainty,
space-time variability and high-dimensionality that are inherently present in the NSI. To illustrate
this approach, we will discuss different design problems for communication and cognitive radio
networks within three categories: cross-layer resource allocation, parsimonious NSI estimation,
and long-term network planning.
Bio
Antonio G. Marques received the Telecommunications Engineering degree and the
Doctorate degree (together equivalent to the B.Sc., M.Sc., and Ph.D. degrees in
electrical engineering), both with highest honors, from the Carlos III University of
Madrid, Spain, in 2002 and 2007, respectively. In 2007, he joined the Department
of Signal Theory and Communications, King Juan Carlos University, Madrid, Spain,
where he currently develops his research and teaching activities as an Associate
Professor. From 2005 to 2012, he held different visiting positions at the University
of Minnesota, Minneapolis. His research interests lie in the areas of communication
theory signal processing, and networking. His current research focuses on stochastic resource
allocation for green and cognitive wireless networks, smart grids, nonlinear network optimization,
and signal processing for graphs. Dr. Marques has served the IEEE in a number of posts (currently,
he is an Associate Editor of the Signal Processing Letters) and his work has been awarded in several
conferences and workshops.
For more information, visit ECE website: Home > Seminar (http://www.ece.utsa.edu)
Contact: Nikolaos Gatsis ([email protected], x5519)