on 26-06-2012
Tuesday, June 26, 11:00am - 12:00pm
I -105, FEUP
Information-theoretic secrecy, is a promising theoretical framework for the future multiterminal communication systems since it uses the ability of the physical layer to provide security of the transmitted data. In this lecture, I will describe few examples on how cooperation can increase the secrecy capacity in a decentralized wireless network.
Our investigations show some improvement possibilities, if instead of acting individually, nodes are ''encouraged'' to cooperate.
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on 20-06-2012
All future major science infrastructures will consider their carbon footprint into the respective development path and lifetimes. The Square Kilometer Array (SKA), an international continental sized ICT machine to be built in the Southern Hemisphere in high irradiance zones (Australia and/or South Africa) presents an ideal scenario to aggregate renewable energy know-how and become a major Green Infrastructure during its lifetime. SKA may set an example for self-sustainable mega-science production and infrastructure operation as was recognized by the COST 2010 action "Benefits of Research Infrastructures beyond Science", with an expected direct economic and indirect societal impacts. Additionaly, the Roadmap of the European Strategy Forum on Research Infrastructures (ESFRI) has indicated that a multitude of test facilities and Research Infrastructures are paramount to lead the world in the efficient use of energy, in promoting new and renewable forms of energy, and in the development of low carbon emission technologies, as part of a Strategic Energy Technology Plan (SET-Plan) adopted by the European Union.
Current energy consumption projections for SKA and recent experiences from pathfinders and precursors (LOFAR, ASKAP, Meerkat) reveal that an important part of the life cycle cost of these large scale radio astronomy projects will be power. Energy transport infrastructure and generation to supply the electronics and the associated cooling are key factors. This last aspect has a direct impact on the system sensitivity, since any potential power caps would limit performance of frontend Low Noise Amplifiers.
To foster discussions between scientists and power engineers, the social program will include visits to major Power plants at top Iberian installations producing solar power (photovoltaic and thermal) on the Portuguese and Spanish sides of the common border. This region is the most illuminated region of Europe, counting with several large scale examples of solar energy exploitation.
Facilities in the area will be organized and available by bus. Therefore, for logistic reasons, the workshop will be limited to 45 participants.
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