ECE Faculty Candidate Colloquium
Monday **Special Location and Time** March 3 11:00 - 11:50 AM Kelley 1007 Dr. Edward Gebara EECS Colloquium: ECE Faculty Candidate Design Engineer Quellan Inc. (Atlanta, GA) Active Interference Suppression and its Impact on System Performance The drive to integrate multiple radio services onto a small form factor device, such as a handset, is exacerbating radio interference problems. Reducing electromagnetic interference (EMI) has now become a prominent topic in wireless communication systems as doing so will restore degraded receiver sensitivity, enable the simultaneous operation of multiple radios, and improve the overall quality of service from communication devices. Towards this end, this seminar will present the theory and the design of an analog interference suppressor that achieves these benefits by minimizing the correlation between the aggressor and victim signals. The solution can be applied to well-documented EMI problems such as the simultaneous operation of mutually aggressive Bluetooth and IEEE 802.11b networks and even ultra-wideband contexts such as GSM and WCDMA. The presentation will conclude with a discussion on how the active cancellation technology can be extended to baseband applications such as crosstalk cancellation in backplane environments. Biography: Dr. Edward Gebara received the B.S. (with highest honors), M.S., and Ph.D. degrees in electrical and computer engineering from the Georgia Institute of Technology, Atlanta, in 1996, 1999 and 2003, respectively. He was an invited scientist at Chalmers University in 1999 and also served as a design engineer at Maxim Incorporation. He is currently a Member of Technical Staff (since January 2001) with Quellan Inc., Atlanta, GA, where he develops high-performance analog semiconductors that improve the speed and reach of communication channels in consumer, broadcast, enterprise, computing and wireless markets. Since 2004 Dr. Gebara has lead the wireless product development. He is also a research faculty member with the Georgia Institute of Technology, where he leads the Mixed Signal Team research efforts. The team research interest is to develop the foundation of alternate modulation schemes, equalization techniques, and crosstalk cancellation techniques on pure CMOS applied to next generation optic, wired and wireless communication systems. Dr. Gebara has authored or coauthored over 50 publications. In addition, Dr. Gebara has been appointed Workshops and Tutorials Chair of the Technical Program for the IEEE MTT-S International Microwave Symposium, 2008.
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