Speaker:	Dr. Fernando A. Mujica
Title:	xDSL systems: current trends and challenges
Date:	October 25, 2002
Time:	3:00 pm
Location:	GCATT Room 325
Abstract:	In this talk we cover the basics of digital subscriber line (DSL) communication systems with emphasis on its asymmetric variant (ADSL).  We describe the ADSL physical layer from a signal processing point of view.  In particular, we introduce the role of equalization, analog and digital echo cancellation, as well as the associated tradeoffs.  Subsequently, we cover current trends in the DSL industry like extended reach DSL and ADSL+ (higher data rates at short loops).  We will close the presentation with future challenges and research directions.
Biography:	Fernando Mujica was born in Caracas, Venezuela, in 1971.  He obtained the Electronic Engineering (Cum Laude) and Magister in Electronic Engineering (graduated with honors) degrees from Universidad Simon Bolivar, Caracas, Venezuela in 1993 and 1995, respectively.  In 1999, he completed the Ph.D. degree in Electrical Engineering from the Georgia Institute of Technology, Atlanta, Georgia.  At Georgia Tech, he was affiliated with the Center for Signal and Image Processing (CSIP) and worked under the guidance of Prof.  Mark J. T. Smith in multidimensional approaches for motion analysis.  This work was also done in collaboration with Prof. Romain Murenzi from the Center for Theoretical Studies of Physical Systems (CTSPS) at Clark Atlanta University, where Fernando worked as a part-time co-op from March 1996 until December 1999. Dr. Mujica joined the DSP Solutions R&D Center of Texas Instruments, Dallas, Texas in January, 2000.  At TI, he has been involved in many aspects of asymmetric digital subscriber line (ADSL) systems, ranging from software development to overall physical layer system engineering.  Dr. Mujica's research interests are in the general area of signal processing and its application to telecommunication problems.
Slides:	sem10_10_25_2002_Fernando_Mujica.pdf