Keynote Speeches
Does the Networked Generation Need a Next Generation Network?
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Roch GuerinAbstract: Over the last decades we have become a "networked" society, and this trend is likely to continue. This ever greater reliance on networks has on one hand exacerbated many of the shortcomings of the current Internet technology, and on the other hand made the consequences of those shortcomings much more dire. This has in turn fueled a growing call for next generation, clean-slate initiatives. Such a focus may however be, if not misplaced, at the very least worthy of careful scrutiny. Recall that many early Internet design choices were first viewed as weaknesses or limitations, but most if not all have been largely overcome through the natural progress of technology. Why should history not repeat itself with the latest batch of presumed problems?Conversely, the initial impetus behind the Internet was a set of applications so poorly matched to the then dominant network architecture that they made the call for a new approach largely self-evident. What are the applications that today clamor for a new network? Last but not least, even if we convince ourselves of the need for a new network, it will face a formidable incumbent in the Internet. One whose pervasive presence will mandate the use of gateways over an extended period of time. Do we understand the cost and implications of those gateways? In light of these many uncertainties and while pursuing the development of new network technologies remains a worthy endeavor, some caution is in order if only to better understand what new network, if any, we need.
In this talk, I will briefly review some lessons from the past, e.g., the rise and fall of QoS as an Internet "problem," and explore some of the challenges associated with displacing a powerful incumbent, and in particular the difficulties of understanding the full impact (positive or negative) of gateways. I will also illustrate by way of an example, what I believe is a potentially more fertile ground for network research, namely, problems that networked environments and applications give rise to and that may ultimately justify new networks. Finally, I will conclude with a few hypothesis for the Internet's phenomenal success, drawing possible implications for future network technologies.
Short Bio: Roch Guerin received an engineer degree from ENST, Paris, France, in 1983, and M.S. and Ph.D. degrees in Electrical Engineering from Caltech in 1984 and 1986, respectively. He joined the Electrical and System Engineering department of the University of Pennsylvania in 1998, where he is the Alfred Fitler Moore Professor of Telecommunications Networks. Before joining the University of Pennsylvania, he spent over twelve years at the IBM T. J. Watson Research Center in a variety of technical and management positions. From 2001 to 2004 he was on partial leave from Penn, starting Ipsum Networks, a company that pioneered the concept of route analytics for managing IP networks. Dr. Guerin has published over 100 papers in international journals and conferences, and holds more than 25 patents. He has also been active in standard organizations such as the IETF. His main research interests are in the general area of networking, and how networks are best used by different types of applications, with a particular emphasis on developing "robust" solutions that require minimum involvement on the network's part. Dr. Guerin is a Fellow of the IEEE, and in 1994 he received an IBM Outstanding Innovation Award for his work on traffic management. Dr. Guerin served as editor of the ACM SIGCOMM technical newsletter, CCR, from 1998 to 2001, and returned to CCR as an area editor in 2005. He was an editor for the Journal of Computer Networks, the IEEE Communications Surveys, the IEEE/ACM Transactions on Networking, the IEEE Transactions on Communications, and the IEEE Communications Magazine, and a guest editor of a JSAC issue on Internet QoS published in December 2000. He chaired the IEEE Technical Committee on Computer Communications from 1997 to 1999, and served as member-at-large of the Board-of-Governors of the IEEE Communications Society from 2000 to 2002. He was General Chair of the IEEE INFOCOM'98 conference, Technical Program co-chair of the ACM SIGCOMM'2001 conference, and General Chair of the ACM SIGCOMM'2005 conference. He has been on the Technical Advisory Board of France Telecom since 2001 and was on the Technical Advisory Board of Samsung Electronics in 2003-2004. He has consulted for numerous companies in the networking area. His web page is at http://www.seas.upenn.edu/~guerin.
White Space Networking - Is it Wi-Fi on Steroids?
Victor Bahl
Networking Research Group in Microsoft Research Redmond
Abstract: We began our journey with the goal of commoditizing pervasive connectivity for the remaining billions. We gravitated towards providing neighborhood connectivity in developing and rural regions. Businesses saw an opportunity and local government began to value blanket city-wide coverage. But success was not inevitable. Deployments failed and critics questioned the promises. Perhaps the technology was not ready for prime time. So we began "fixing" the technology, part of which included revisiting governmental policies around spectrum allocation. The US government listened and in a landmark ruling on Nov. 4, the FCC voted to open the unused low frequency bands for unlicensed use.
In this talk, I will discuss the evolution of our thinking on how to achieve open pervasive internet connectivity. I will highlight promising new directions that are full of interesting challenges. I will discuss solutions that researchers are developing and show their trajectory. My objective is to present what I believe is the new frontier of wireless networking and ubiquitous Internet, at the intersection of cognitive systems, mesh networking, and white spaces. I will challenge the audience into taking on new technical problems and thinking about new business models, which will lead us to success in our original goal of commoditizing pervasive connectivity for the masses, bridging the digital divide, and enabling exciting new applications and services in the process.
Short Bio: Victor Bahl is a Principal Researcher and founding Manager of the Networking Research Group in Microsoft Research Redmond. He is responsible for directing research activities that push the state-of-art in the networking of devices and systems. He and his group build proof-of-concept systems, engage with academia, publish papers in prestigious conferences and journals, publish software for the research community, and work with product groups to influence Microsoft's products. His personal research interests span a variety of topics in wireless systems design, mobile networking, and network management. He has built and deployed several seminal and highly cited networked systems, with a total of over 6000 citations; he has authored over 80 papers and over 110 patent applications, 60 of which have issued; he has delivered close to two dozen keynote & plenary talks; he is the founder and past Chairperson of ACM SIGMOBILE; the founder and past Editor-in-Chief of ACM Mobile Computing and Communications Review, and the founder and steering committee chair of the Mobile Systems Conference; He has served as the General Chair of several IEEE and ACM conferences including SIGCOMM and MobiCom, and is serving on the steering committees of seven IEEE & ACM conferences & workshop; he has served on the board of over half-a-dozen journals; on several NSF and NRC panels, and on over six dozen program committees. Dr. Bahl received Digital's Doctoral Engineering Fellowship Award in 1995 and SIGMOBILE's Distinguished Service Award in 2001. In 2004, Microsoft nominated him for the innovator of the year award. He became an ACM Fellow in 2003 and an IEEE Fellow in 2008. More on him at http://research.microsoft.com/~bahl/
Net SILOs: A network architecture for advanced cross-layer experimentation
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George RouskasAbstract: In this talk we will present the Net SILOs architecture of fine-grain services for the Future Internet (http://net-silos.net/). The design of the architecture is based on three fundamental principles. First, SILO generalizes the concept of layering and decouples layers from services, making it possible to introduce new functionality and innovations. Second, cross-layer interactions are explicitly supported by extending the definition of a service to include control interfaces that can be tuned externally so as to modify the behavior of the service. The third principle is ``design for change:'' the architecture does not dictate the services to be implemented, but provides mechanisms to introduce new services and compose them to perform specific communication tasks. architecture and the prototype software implementation. We will also explain how the SILO architecture may enable advanced cross-layer experimentation in the optical substrate to harness new capabilities available within an emerging intelligent and programmable optical layer.
Short Bio: George N. Rouskas is a Professor of Computer Science at North Carolina State University. He received the Ph.D. and M. S. degrees in Computer Science from the College of Computing, Georgia Institute of Technology, Atlanta, and a degree in Computer Engineering from the National Technical University of Athens (NTUA), Athens, Greece. Professor Rouskas has received numerous research and teaching awards, including an NSF CAREER Award and the NCSU Alumni Outstanding Research Award, and he has been inducted in the NCSU Academy of Outstanding Teachers. He is the author of the book "Internet Tiered Services" (Springer. 2009), co-editor of the book "Traffic Grooming for Optical Networks" (Springer. 2008), and co-editor of the upcoming book "Next-Generation Internet Architectures and Protocols" (Cambridge University Press, 2010). His research interests are in network architectures and protocols, optical networks, and performance evaluation.