[UCI-Calit2] 1/27/15 Seminar by Prof. Mohamed-Slim Alouini

[Shelly Nazarenus]

Title: Spectrum Scarcity and Optical Wireless Communications



Speaker: Prof.  Mohamed-Slim Alouini



Date: Jan. 27, 2015, Tue.



Time:  11:00 AM



Venue:  UCI Calit2 Building Seminar Room 3008



ABSTRACT



Rapid increase in the use of wireless services over the last two decades

has lead the problem of the radio-frequency (RF) spectrum exhaustion.

More specifically, due to this RF spectrum scarcity, additional RF

bandwidth allocation, as utilized in the recent past, is not anymore a

viable solution to fulfill the demand for more wireless applications and

higher data rates. Among the many proposed solutions, optical wireless

communication or free-space optical (FSO) systems have gained an

increasing interest due to their advantages including higher bandwidth

and higher capacity compared to the traditional RF communication

systems. This promising technology offers full-duplex Gigabit throughput

in certain applications and environment while benefiting from a huge

license-free spectrum, immunity to interference, and high security.

These features of FSO communication systems potentially enable solving

the issues that the RF communication systems face due to the expensive

and scarce RF spectrum. The first part of the talk will give an overview

of FSO communication systems by offering examples of advantages and

application areas of this emerging technology. In the second part of

talk, we will focus on some recent results and on-going research

directions in the accurate characterization of the performance of FSO

systems in the presence of inevitable impairments due to atmospheric

turbulence and misalignment between transmitter and receiver.



SPEAKER'S BIOGRAPHY



Mohamed-Slim Alouini was born in Tunis, Tunisia. He received the Ph.D.

degree in Electrical Engineering from the California Institute of

Technology (Caltech), Pasadena, CA, USA, in 1998. He served as a faculty

member in the University of Minnesota, Minneapolis, MN, USA, then in the

Texas A&M University at Qatar, Education City, Doha, Qatar before

joining King Abdullah University of Science and Technology (KAUST),

Thuwal, Makkah Province, Saudi Arabia as a Professor of Electrical

Engineering in 2009. His current research interests include the

modeling, design, and performance analysis of wireless communication

systems.








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