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Seminaire MASCOTTE
Energy and Networks

par Dan Kilper


Date :11/12/09
Time :11:00
Location :Euler Violet


Although the flow and dissipation of energy has long been a topic of interest with respect to communication networks, growing concerns over global warming have brought renewed focus to this subject. Many fundamental aspects are already understood. Of central importance is the Shannon channel capacity, which provides a hard limit for the minimum energy consumed in processing or transporting information with fidelity in dissipative systems. Today, communication systems that make up the internet consume energy at levels much higher than this fundamental limit. Both wireless and optical transport, however, are near or rapidly approaching their respective Shannon limits. In general, power consumption in the internet is a complex mixture of contributions from many different technologies. Recently we constructed a transaction-based model of network energy consumption to help gain insight into these issues. In this talk, I'll describe our model and how it relates to energy use in the internet. We'll also review concepts on limits to energy consumption and where those limits might stand with respect to energy dissipation in networks today.

Bio:

*Daniel C. Kilper* received the B.S. degree in electrical engineering and the B.S. degree in physics from Virginia Polytechnic Institute & State University, Blacksburg, VA, USA, in 1990, and the M.S. and Ph. D. degrees in physics from The University of Michigan, Ann Arbor, MI, USA, in 1992 and 1996. Following his post-doctoral work at the Optical Technology Center in Montana State University, he became an assistant professor of physics at the University of North Carolina, Charlotte, USA. In 2000, he joined the Advanced Photonics Research Department as a member of technical staff at Bell Laboratories, Lucent Technologies in Holmdel, NJ, USA. In 2007 he became a member of the Bell Labs Optical Transmission Systems and Networks Research Department in Alcatel-Lucent. Dr. Kilper is an associate editor for the OSA/IEEE Journal of Optical Communications and Networking. He is a senior member of IEEE and has served on the Member and Educational Services Council, the OSA Leadership Award Committee, and the Esther B. Hoffman Award Committee of the Optical Society of America. He is currently on the technical program committee for CLEO/Europe and has served on committees for CLEOIQEC, COIN/ACOFT, and OPTO/Southeast. From 2003-2006 he was a member of the Bell Labs Advisory Council on Research. While at Bell Laboratories he has conducted research on optical performance monitoring, transmission, architectures and control systems for transparent and re-configurable optical networks. Dr. Kilper has authored or co-authored more than 80 journal publications and conference presentations, including one book chapter.

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