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SUNMONTUEWEDTHUFRISAT
Events for February 08, 2010
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Meet USC: Admission Presentation, Campus Tour, & Engineering Talk
Mon, Feb 08, 2010
Viterbi School of Engineering Undergraduate Admission
University Calendar
This half day program is designed for prospective freshmen and family members. Meet USC includes an information session on the University and the Admission process; a student led walking tour of campus and a meeting with us in the Viterbi School. Meet USC is designed to answer all of your questions about USC, the application process and financial aid.Reservations are required for Meet USC. This program occurs twice, once at 9:00 a.m. and again at 1:00 p.m. Please visit http://www.usc.edu/admission/undergraduate/visit/meet_usc.html to check availability and make an appointment. Be sure to list an Engineering major as your "intended major" on the webform!
Location: USC Admission Center
Audiences: Prospective Freshmen and Family Members - RESERVATIONS REQUIRED
Contact: Admission Intern
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Network Science: Power Grids, Wireless Communication, and Epidemics
Mon, Feb 08, 2010 @ 11:00 AM - 12:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Edmund Yeh,
Yale UniversityAbstract: Over the past decade, there has been a concerted effort to develop a network science for studying physical, biological, social, and information networks within a common framework. Of particular interest is the understanding of connectivity, robustness, and information/epidemic dynamics in large-scale networks with spatial location and mobility. In this talk, we discuss a number of recent results from the application of network science ideas to electrical power grids, wireless communication networks, and the spread of epidemics.The security and stability of the electrical power grid is one of the major challenges facing society today. In power networks carrying load, the failure of one network node can result in redistribution of the load onto other nearby nodes. If these nodes fail due to excessive load, then this process can result in a cascading failure causing widespread power outage. Using the theory of percolation, we characterize the resilience of the power network in terms of whether correlated node failures lead to a large connected component of failed nodes or not. With this approach, we obtain analytic conditions on the existence or non-existence of correlated and cascading failures in power grids.Next, we study connectivity and information dissemination in large-scale wireless networks modelled by random geometric graphs with dynamic on-off links. Using a percolation-based perspective, we show that the delay for information dissemination exhibits two behavioral regimes, corresponding to a phase transition of the underlying network connectivity. When the dynamic network is in the subcritical phase, ignoring propagation delays, the dissemination delay scales linearly with the Euclidean distance between the sender and the receiver. When the dynamic network is in the supercritical phase, the delay scales sublinearly with the distance.Mobility is an essential aspect of information and epidemic networks. In these settings, the details of the mobility process is often not as essential as the pattern of network connectivity that the mobility induces. We develop a new framework for studying mobility which maps a network of mobile nodes to a network of stationary nodes with dynamic links. Using this framework, we characterize the rate of epidemic spread (e.g. H1N1) in mobile geometric networks (e.g. human contact networks).Joint work with Zhenning Kong.Biography: Edmund Yeh received his B.S. in Electrical Engineering with Distinction from Stanford University in 1994, his M.Phil in Engineering from the University of Cambridge in 1995, and his Ph.D. in Electrical Engineering and Computer Science from MIT in 2001. Since 2001, he has been on the faculty at Yale University, where he is currently an Associate Professor of Electrical Engineering (with joint appointments in Computer Science and Statistics).Host: Giuseppe Caire, caire@usc.edu, EEB 528, x04683
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
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BME 533 Seminar
Mon, Feb 08, 2010 @ 12:30 PM - 01:50 PM
Alfred E. Mann Department of Biomedical Engineering
Conferences, Lectures, & Seminars
Vasilis Marmarelis, Ph.D., Research Professor of Biomedical Engineering, USC: "Computational Modeling of Biomedical Systems and Advanced Processing of Biomedical Signals"
Location: Olin Hall of Engineering (OHE) - 132
Audiences: Graduate//Department Only
Contact: Mischalgrace Diasanta
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Cognitive Radio Channels: Capacity for Certain Discrete Memoryless Channels and Capacity to Within 1
Mon, Feb 08, 2010 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Stefano Rini,
Electrical and Computer Engineering,
University of Illinois at ChicagoAbstract: The capacity region of the interference channel in which one transmitter non-causally knows the message of the other, termed the cognitive channel, has remained open since its inception in 2005. A number of subtly differing achievable rate regions and outer bounds have been derived, some of which are tight under specific conditions. In this talk we present a new unified inner bound for the discrete memoryless cognitive interference channel that encompasses all known achievable rate regions. We also present an outer bound that unifies some known outer bounds. We show that our outer bound is tight for the deterministic linear high SNR approximation of the Gaussian cognitive channel, and that it gives capacity to within 1.8 bits for the Gaussian channel.Biography: Stefano Rini received his bachelor's degree in Computer Science from Politecnico di Milano, Como (Italy) in 2005. He is currently a PhD student in Electrical and Computer Engineering and a MA student in Statistics at the University of Illinois at Chicago, IL USA . He is an active researcher in multi-user information theory and cognitive networks.Host: Gerhard Kramer, gkramer@usc.edu, EEB 536, x07229
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 248
Audiences: Everyone Is Invited
Contact: Gerrielyn Ramos
