Design and Performance Evaluation of Mechanisms for Mobile-Devices Handoff Forecast
FIRB-PERF '05 Proceedings of the 2005 Workshop on Techniques, Methodologies and Tools for Performance Evaluation of Complex Systems
Mobility modeling, location tracking, and trajectory prediction in wireless ATM networks
IEEE Journal on Selected Areas in Communications
Dual migration for improved efficiency in cloud service
ACIIDS'12 Proceedings of the 4th Asian conference on Intelligent Information and Database Systems - Volume Part III
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In present wireless networks, mobile users frequently access continuous and session-oriented Internet services. During the handover, the management of session-related information introduces additional overheads and delays, due to context transfer procedures. Such delays may affect the QoS perceived by mobile users, making more difficult to realize seamless handover procedures. In this paper, we propose a framework to design a layer-2 trigger on the mobile node that intelligently activates the Context Transfer Protocol (CTP). Our proposed solution is based on methods to forecast the handoff time of the mobile node and the access router that will handoff the connection, and a model to estimate the time needed to complete the context transfer procedure. We show that the forecasting algorithm is stable, is able to effectively avoid the ping-pong effect, and converges both for simple and complex trajectories, typical of urban regions. We also evaluate the performance of CTP in the real case of a GSM network.