CARLETON WIRELESS SEMINAR SERIES
Date: Thursday, July 5
Time: 1:30 pm
Location: Carleton University, 4359 ME (Mackenzie Building), map
Speaker: Dr. Lina Mroueh, Associate Professor, Institut Supérieur d’Electronique de Paris (ISEP), Visiting Professor, Carleton University
ABSTRACT: In this talk, we address the space time code construction problem in a Free Space Optical Multiple Input Multiple Output (FSO-MIMO) communication. Unlike the radio-frequency space time coding design that deals with complex symbols holding phase and magnitude information, the phase detection in wireless optical communications remains very challenging. This restricts optical MIMO codes to carry positive magnitude information belonging to a finite range. To meet these requirements, we propose to design the FSO-MIMO codes considering first, the whole real space R, followed by a bipolar to unipolar conversion to fit in the intensity margin. We consider the MIMO configurations with two transmitting antenna and with a time diversity order of 1 and 2. We base our shape-preserving construction on quadratic extension fields that linearly combine the real symbols to form a full diversity space time code with symbol rate equal to two. We show how to optimize the choice of the algebraic field numbers to jointly optimize the non-vanishing code determinant and the bipolar to unipolar attenuation factor.
BIO: Lina Mroueh received her engineering degree from Telecom ParisTech in 2006, her MSc degree from university of Pierre and Marie Curie in 2006 and her PhD from Telecom ParisTech in 2010. From 2006 to 2009, she worked as a research engineer in the seamless radio laboratory of Motorola Labs. In 2009, she was a visiting student in communication theory group in ETH Zurich and then a postdoctoral student in 2010. She is currently an associate professor at the department of signal image and Telecommunications of the Institut Supérieur d’Electronique de Paris (ISEP). She is currently in charge of the Telecommunication and Internet of Things track at ISEP. Her research interests include the space time coding design for wireless and free space optical MIMO communications, the interference mitigation techniques and the radio resource allocation and the dimensioning in cellular and ad-hoc networks.