Title: Cognitive Radio Research at Tennessee Tech
Speaker: Dr. Robert Qui
Date: Thursday, February 18, 2010
Time: 11:30 am – 1pm, Refreshments and Networking 11:30-Noon
Place: Georgia Tech Research Institute, (256) 716-2177
1525 Perimeter Pkwy, Suite 415, Huntsville, AL 35086
Pizza and drinks will be provided. Please RSVP to Rick Tuggle no later than 17 February.
Everyone is welcome! You do not have to be an IEEE member to attend.
Abstract
Cognitive radio (CR), an emerging wireless communication technique, evolves from software defined radio (SDR) and outperforms it with intelligence. It has the capabilities of cognizing the radio environment and learning from the radio environment. Cognitive radio will greatly increase the utilization of the radio spectrum. My research group at Tennessee Tech University is devoting itself to this promising research area. This talk will present the accomplished and ongoing researches on cognitive radio in my research group. Spectrum detection, prediction and modeling are performed using machine learning algorithms like hidden Markov model (HMM) and support vector machines (SVM). Leaning the optimal kernel matrix with semi-definite programming (SDP) is studied to improve the performance intelligently. Meanwhile, detection scheme from measured covariance matrix and interference cancellation based on measured covariance matrix is explored. Another research topic in my research group is wideband waveform design and optimization for cognitive radio. This kind of waveform diversity gives us more flexibility to design smart radio to well coexist with other CRs and primary radios. From a single pair of CRs to cognitive radio networks, control techniques or decision making techniques for complex system will be exploited for cognitive radio networks. Cooperative algorithms and distributed algorithms from networking’s point of view will be studied. From my research philosophy, developing the theoretical framework for cognitive radio is just the half way to the goal. No concept will be really demonstrated until testbed is built. Cognitive radio networks test-bed will be set up in my lab in the near future. In this way, more real issues on cognitive radio networks will come up, which can also support the research on the correct track. The research in this direction is funded in the total amount of $1,500,000 plus by NSF and ONR, built upon previous sponsors such as ARO, ONR and NSF.
Speaker Biography
Robert Caiming Qiu (IEEE S’93–M’96–SM’01) received the Ph.D. degree in electrical engineering from Polytechnic University, Brooklyn, NY. He is currently a Professor in the Department of Electrical and Computer Engineering, Center for Manufacturing Research, Tennessee Technological University, Cookeville. His current interest is in wireless communication and networking systems, in particular Ultrawideband (UWB). He was Founder-CEO and President of Wiscom Technologies, Inc., manufacturing and marketing WCDMA chipsets. Wiscom was sold to Intel in 2003. Prior to Wiscom, he worked for GTE Labs, Inc. (now Verizon), Waltham, MA, and Bell Labs, Lucent, Whippany, NJ. He has visited AFRL and NRL, funded by two summer faculty fellowships. He has worked in wireless communications, radio propagation, digital signal processing, EM scattering, composite absorbing materials, RF microelectronics, UWB, underwater acoustics, and fiber optics. He holds several U.S. patents pending in WCDMA and authored over 50 technical papers and 5 book chapters. He contributed to 3GPP and IEEE standards bodies, and delivered invited seminars to institutions including Princeton University and the U.S. Army Research Lab. In 1998 he developed the first three courses on 3G for Bell Labs researchers. He served as an adjunct professor in Polytechnic University, Brooklyn, New York. Dr. Qiu serves as Associate Editor, IEEE Transactions on Vehicular Technology , International Journal of Sensor Networks (Inderscience) and Wireless Communication and Mobile Computing (NewYork: Wiley). He is a Guest Book Editor for Ultra-Wideband (UWB)Wireless Communications (NewYork: Wiley, 2005), and three special issues on UWB including the IEEE Journal on Selected Areas in Communications and IEEE Transactions on Vehicular Technology. He serves as a Member of TPC for GLOBE-COM, WCNC, and MILCOM. In addition, he served on the advisory board of the New Jersey Center for Wireless Telecommunications (NJCWT).
