Orateur : Marco Ajmone Marsan (Politecnico di Torino)
Titre : Energy Efficient Wireless Internet Accesswith Cooperative Cellular Networks
Abstract : n this talk we discuss the energy-aware cooperative managementof the cellular access networks of the operators that offer serviceover the same area, and we evaluate the amount of energy thatcan be saved by using all networks in high traffic conditions,but progressively switching off networks during the periodswhen traffic decreases, and eventually becomes so low thatthe desired quality of service can be obtained with just one network. When a network is switched off, its customers are allowed to roamover those that remain powered on. Several alternatives are studied,as regards the traffic profile, the switch-off pattern, the energycost model, and the roaming policy.Numerical results indicate that a huge amount of energy can be savedwith an energy-aware cooperative management of the networks, andsuggest that, to reduce energy consumption, and thus the costto operate the networks, new cooperative attitudes of the operatorsshould be encouraged with appropriate incentives.
*Biography*: Marco Ajmone Marsan is a Full Professor at the Electronics Department of Politecnico di Torino, in Italy, and a part-time Chief Researcher at IMDEA Networks (www.imdea.org/networks) in Madrid. He is the founder and the leader of the Telecommunication Networks Group at the Electronics Department of Politecnico di Torino.Marco Ajmone Marsan holds degrees in Electronic Engineering from Politecnico di Torino and University of California, Los Angeles.Marco Ajmone Marsan was at Politecnico di Torinou2019s Electronics Department from November 1975 to October 1987 – first as a researcher and then as an Associate Professor. He was a Full Professor at the University of Milanu2019s Computer Science Department from November 1987 to October 1990. From September 2002 to March 2009 he was the Director of the Institute for Electronics, Information and Telecommunications Engineering of the National Research Council. From 2005 to 2009 he was the Vice-Rector for Research, Innovation and Technology Transfer at Politecnico di Torino.During the summers of 1980 and 1981, he was with the Research in Distributed Processing Group, Computer Science Department, UCLA. During the summer of 1998 he was an Erskine Fellow at the Computer Science Department of the University of Canterbury in New Zealand.He has co-authored over 300 journal and conference papers in Communications and Computer Science, as well as the two books “Performance Models of Multiprocessor Systems,” published by the MIT Press, and “Modelling with Generalized Stochastic Petri Nets,” published by John Wiley.In 1982, he received the best paper award at the Third International Conference on Distributed Computing Systems in Miami, Florida. In 2002, he was awarded a honorary doctoral degree in Telecommunications Networks from the Budapest University of Technology and Economics. He was named Commander of the Order of Merit of the Italian Republic in 2006. He is the chair of the Italian Group of Telecommunications Professors, and the Italian Delegate in the ICT Committee of the 7th Framework Programme of the EC.He has been the principal investigator in national and international research projects dealing with telecommunication networks. His current interests are in the performance evaluation of communication networks and their protocols.Marco Ajmone Marsan is a Fellow of IEEE, and a corresponding member of the Academy of Sciences of Torino. He is a member of the steering committee of the IEEE/ACM Transactions on Networking. He participates in a number of editorial boards of international journals, including the Computer Networks Journal by Elsevier. He is listed by ISI among the highly cited researchers in Computer Science and a member of the Gruppo 2003, the association of Italian Highly Cited Scientists.