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The long latency associated with mobile IPv6 home-address and care-of-address tests can significantly impact delay-sensitive applications. This paper presents an optimization of mobile IPv6 correspondent registrations that evades the latency of both address tests. An optimized correspondent registration eliminates 50%, or more, of the additional delay that… (More)
Future mobile networks will offer a great variety of multimedia services. DiffServ is the promising framework standardized by the IETF to enhance the Internet with the essential quality of service. Unfortunately, transaction-oriented applications— the most popular class of applications—are not sufficiently supported yet. Quick Forwarding (QF) has been… (More)
Diese Arbeit möchte die grundlegenden Mechanismen, ihre Nachteile und Verbesserungen vorstellen.
The fourth generation (4G) of mobile communication networks will provide a multitude of real-time and non-real-time services on top of an IP-based platform. Subscribers can access these services over arbitrary radio-access technologies, including existing WPAN, WLAN, WMAN, and WWAN technologies as well as future air interfaces for broadband wireless access.… (More)