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Dr. Victor Bahl, Microsoft Research
Title of the talk: Are Self-Managing Wireless Networks in Our Future?
Abstract:
For over a decade we have been pursuing research on optimizing the performance of IEEE 802.11
networks and it’s been a stimulating ride. However, it is time for the research community to
think deeply about problems related to maintaining and managing these networks. IT departments
of major corporations spend millions of dollars to keep their networks operating reliably and securely.
Yet when you talk to the operations staff they are still unhappy. User complaints about the
performance and connectivity go unsolved because the IT staff does not have the tools to perform
root cause analysis. Even after years of effort building security protocols, wireless
networks remain vulnerable. These problems results in user frustration and productivity loss.
On a different front, researchers have long touted wireless meshes as a way to bridge the
digital divide. They are the solution of choice for providing low-cost connectivity in
remote areas in the developing regions of the world; however these networks are not
self-sustaining. Someone technical is needed to keep these networks up and going
after they are deployed. Here again there is a serious lack of tools and techniques
that would allow non-technical users to maintain these networks. In this talk, I
will describe the problem space, enumerate the challenges and offer a few
technical suggestions on managing wireless networks for mobile users. My goal
is to stimulate discussions by challenging the audience to think about
solutions that could eventually lead us to self-managing networks.
Biography of Dr. Victor Bahl
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Presentation by Dr. Victor Bahl.
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Prof. P. R. Kumar
Franklin Woeltge Professor of Electrical and Computer Engineering
Research Professor,
Coordinated Science Lab University of Illinois, Urbana-Champaign
Title of the talk: Can clocks ever be synchronized over wireless
networks?
Abstract:
We examine fundamental limitations to clock synchronization
over wireless networks. We characterize the extent to which they
can or cannot be. We also present a spatial smoothing approach
and show how accuracy it is. We also present an application
of tracking using only time measurements.
Joint work with V. Borkar, N. Freris, A. Giridhar, S. Graham, K.
Plarre, and R. Solis.
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Prof. Kang G. Shin
Kevin & Nancy O'Connor Professor of Computer Science
CSE Divison,
Department of EECS
The University of Michigan
Title of the talk:
On Quality-of-Service of Networked Embedded Systems
Abstract:
There has been an exponential growth of applications that rely
on diverse types of embedded end-systems and devices, such as
cell phones, handheld entertainment devices, home appliances,
consumer and industrial electronics, smart sensors and actuators.
These applications require (1) end-systems to be networked together
via heterogeneous networking technologies and procotols,
and (2) diverse types of end-to-end Quality-of-Service (QoS)
including timeliness, dependability, security and privacy.
We now know how to guarantee timeliness and, to a lesser extent,
how to provide fault-tolerance, on both end-systems and their interconnection
networks. However, how to secure them is far lesser known, despite
the growing importance of protecting information stored in the end
systems/devices and exchanged over their interconnection networks.
Morever, timeliness, fault-tolerance, security and privacy---which
I simply call QoS---must be supported simultaneously, often with
a tight resource budget such as memory, computation and communication
bandwidth, and electric power. Also, different applications require
different combinations of QoS components, and hence, one-fits-all
solutions are not acceptable. This talk will cover issues and approaches
to the problems of building QoS-sensitive networked embedded systems.
Short biography of Professor Kang Shin.
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Presentation by Prof. Kang Shin.
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