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Dr. Ravishankar earned his PhD degree in Electrical Engineering from Purdue University, West Lafayette, Indiana after graduating from Indian Institute of Technology in Bombay, India. He is a Vice President of Engineering at Hughes Network Systems, Germantown, Maryland where he leads system engineering activities in Mobile Satellite Department. Prior to joining Hughes, he was with Comsat Labs, Clarksburg, Maryland. He serves as Editor of Speech Processing for IEEE Transactions on Communications and has chaired technical sessions in IEEE conferences. He has also served as member of Ph.D. committee at George Washington University. As visiting faculty at University of Maryland, College Park, he teaches Probability Theory and Stochastic Processes, Data Networks and Wireless Networks. He has authored more than 25 technical papers in IEEE and has contributed to John Wiley Encyclopedia of Electrical and Electronic Engineering. He is a senior member of IEEE.​

Design, analysis and performance evaluation of next generation mobile satellite systems, efficient MAC protocols in long delay and error-prone links, design of advanced scheduling algorithms for differentiated QoS, and VoIP designs.​

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