WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
SAP: seamless authentication protocol for vertical handoff in heterogeneous wireless networks
QShine '06 Proceedings of the 3rd international conference on Quality of service in heterogeneous wired/wireless networks
Proactive Handover in Heterogeneous Networks Using SIPs
ICN '08 Proceedings of the Seventh International Conference on Networking
Advanced SIM Capabilities Supporting Trust-Based Applications
NordSec '09 Proceedings of the 14th Nordic Conference on Secure IT Systems: Identity and Privacy in the Internet Age
The future generations of mobile communications based on broadband access technologies
IEEE Communications Magazine
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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.