21 June 2012, 10.30 am
Professor Marco Chiani of the University of Bologna will be giving a Communications research seminar on the topic of 'Spectrum Sensing for Cognitive Radio: fundamental limits and multiple antenna based methods' as part of the Royal Academy of Engineering Distinguished Visiting Fellow programme.
Date: Thursday 21st June 2012
Venue: 1.06, MVB
The seminar will first cover the basic aspects of cognitive radio (CR), with a review of the main motivations and definitions about CR. In particular, we review the "interweave" approach ("spectrum overlay"), the "underlay" approach, and the "relay based" approach. Then, we specifically address spectrum sensing, with special emphasis on threshold design for the Energy Detector with estimated noise power. We analyze the performance of the ED with estimated noise power (ENP), addressing the threshold design and giving the fundamental limits and the conditions for the existence of the SNR wall. Finally we discuss spectrum sensing with multiple antennas and in particular we show how some recent results from random matrix theory can be used to estimate the number of signals in a cognitive radio scenario.
Marco Chiani received the Dr. Ing. degree (summa cum laude) in electronic engineering and the Ph.D. degree in electronic and computer science from the University of Bologna, Italy, in 1989 and 1993, respectively. He is a Full Professor of Telecommunications and the current Director of the Center for Industrial Research on ICT, University of Bologna. He is a frequent visitor at the Massachusetts Institute of Technology (MIT), Cambridge, where he presently holds a Research Affiliate appointment. He is leading the research unit of the University of Bologna on cognitive radio and UWB (European project EUWB), on Joint Source and Channel Coding for wireless video (European projects Phoenix-FP6 and Optimix-FP7), and is a consultant to the European Space Agency (ESA-ESOC) for the design and evaluation of error correcting codes based on LDPCC for space CCSDS applications.
His research interests include wireless communication systems, MIMO systems, wireless multimedia, low-density parity-check codes (LDPCC) and UWB. Prof. Chiani has chaired, organized sessions, and served on the Technical Program Committees at several IEEE International Conferences. He is the past Chair (2002-2004) of the Radio Communications Committee of the IEEE Communication Society and past Editor of Wireless Communication (2000-2007) for the IEEE Transactions on Communications. He is a Fellow of the IEEE.