Capacity planning for Web performance: metrics, models, and methods
Capacity planning for Web performance: metrics, models, and methods
Vertical handoffs in wireless overlay networks
Mobile Networks and Applications - Special issue: mobile networking in the Internet
Selection algorithms for replicated Web servers
ACM SIGMETRICS Performance Evaluation Review
A framework for scalable global IP-anycast (GIA)
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Application-layer anycasting: a server selection architecture and use in a replicated Web service
IEEE/ACM Transactions on Networking (TON)
Content Distribution Architecture Using Network Layer Anycast
WIAPP '01 Proceedings of the Second IEEE Workshop on Internet Applications (wiapp '01)
Mobility modeling, location tracking, and trajectory prediction in wireless ATM networks
IEEE Journal on Selected Areas in Communications
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In nowadays wireless networks, mobile users frequently access Internet services that are often based on information concerning the application context and service status. In presence of mobility, the procedure of service handover, may require a restart of the ongoing service, if the necessary context information is not properly transferred to the new point of access. Context transfer procedures introduce additional overheads to handovers possibly affecting the quality of service perceived by mobile users and making handovers very critical. In this paper the need for efficient protocols for transferring service context and profile related information is pointed out with reference to many mobile internet services, and the possible scenarios are differentiated on the basis of the handover triggering mechanisms. A performance model to compare these mechanisms, when context transfer protocols run on top of IPv6 with fast handover, is proposed. Numerical results point out the necessity to adapt the triggering mechanism to the size of the context data.