5G: Service Continuity in Heterogeneous Environments |
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Authors: | Josef Noll Mohammad M R Chowdhury |
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Affiliation: | (1) Research Academic Computer Technology Institute, N. Kazantzaki, GR-26500 Patras, Greece;(2) Computer Engineering and Informatics Department, University of Patras, GR-26500 Patras, Greece |
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Abstract: | This paper introduces service continuity as the main driver for 5G systems. It addresses user- and service-aspects in recently
opened LTE networks, and identifies the system challenges. The main challenges are related to radio coverage, especially for
the provision of high data rates for indoor users. The paper covers also network-, user- and service-authentication as well
as user and society requirements. 5G is addressed as a system of systems in order to provide service continuity. It addresses
both technology challenges, user related issues and operator revenue. Collaborative radio and a system availability beacon
are discussed to cope with heterogeneity in 5G. As the SIM card has evolved towards a third-party offering for storage, authentication
and payment, functionality of this future SIM is elaborated providing SIM-based service examples. The paper finally addresses
service optimization based on light-weight semantic reasoning. |
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