On Modeling Speed-based Vertical Handovers in Vehicular Networks "Dad, slow down, I am watching the movie"
Vegni, Anna Maria
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Citation (published version)Esposito, Flavio; Vegni, Anna Maria; Matta, Ibrahim; Neri, Alessandro. "On Modeling Speed-based Vertical Handovers in Vehicular Networks 'Dad, slow down, I am watching the movie'", Technical Report BUCS-TR-2010-032, Computer Science Department, Boston University, September 7, 2010. [Available from: http://hdl.handle.net/2144/3807]
Although vehicular ad hoc networks are emerging as a novel paradigm for safety services, supporting real-time applications (e.g., video-streaming, Internet browsing, online gaming, etc.) while maintaining ubiquitous connectivity remains a challenge due to both high vehicle speed, and non-homogeneous nature of the network access infrastructure. To guarantee acceptable Quality-of-Service and to support seamless connectivity, vertical handovers across different access networks are performed. In this work we prove the counterintuitive result that in vehicular environments, even if a candidate network has significantly higher bandwidth, it is not always beneficial to abandon the serving network. To this end, we introduce an analytical model for a vertical handover algorithm based on vehicle speed. We argue that the proposed approach may help providers incentivize safety by forcing vehicular speed reduction to guarantee acceptable Quality-of-Service for real-time applications.