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New Pervasive and Mobile Computing Study Findings Recently Were Reported by Researchers at University of Piraeus (Utility-based RAT selection...

July 9, 2014

New Pervasive and Mobile Computing Study Findings Recently Were Reported by Researchers at University of Piraeus (Utility-based RAT selection optimization in heterogeneous wireless networks)

By a News Reporter-Staff News Editor at Telecommunications Weekly -- Current study results on Pervasive and Mobile Computing have been published. According to news reporting originating in Piraeus, Greece, by VerticalNews journalists, research stated, "Recent technological advances in wireless networks will enable the realization of an integrated heterogeneous wireless environment consisting of multiple Radio Access Technologies ( RATs) within a network provider. One of the most important benefits is that this will allow providers to balance their traffic among their subsystems without compromising on QoS issues."

The news reporters obtained a quote from the research from the University of Piraeus, "In this paper we focus on the Network Selection problem to allocate terminals to the most appropriate RATs by jointly examining both users' and providers' preferences. We introduce three utility-based optimization functions based on the type of application that users request. We then formulate the terminal assignment problem as an optimization problem, which is recognized as NP-hard. We examine both offline and online selection and develop an optimal Branch and Bound ( BB) algorithm, a Greedy heuristic, as well as three Strip Packing variations."

According to the news reporters, the research concluded: "BB behaves efficiently in both offline and online environments reducing the search procedure, while the proposed heuristics produce results close to the values we get from BB but with very low computational cost."

For more information on this research see: Utility-based RAT selection optimization in heterogeneous wireless networks. Pervasive and Mobile Computing, 2014;12():92-111. Pervasive and Mobile Computing can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Pervasive and Mobile Computing -

Our news correspondents report that additional information may be obtained by contacting P. Kosmides, University of Piraeus, Dept. of Digital Syst, Piraeus 18534, Greece. Additional authors for this research include A. Rouskas and M. Anagnostou.

Keywords for this news article include: Greece, Europe, Piraeus, Wireless Network, Wireless Technology, Pervasive and Mobile Computing

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Source: Telecommunications Weekly

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