ABSTRACT
The handover from WiFi to mobile networks is known to lead to TCP connection drops due to changing IP addresses. Multipath TCP (MPTCP), a recent TCP extension, enables a transparent mobile handover by combining subflows on multiple interfaces, such as WiFi and LTE, to one logical connection. MPTCP provides multiple handover modes, which differ in their energy consumption and the performance during the handover. The Full-MPTCP mode uses permanently both WiFi and the mobile network, which increases energy consumption. The Single-Path mode establishes the mobile network connection after the WiFi connection broke, which leads to a short performance degradation. In this paper, we argue that this trade-off is not necessary. We propose to use the available (sensor) information to forecast the mobile handover. This allows switching to the Full-MPTCP mode before the WiFi connection breaks, providing both low energy consumption and high performance during the handover. For a first experimental evaluation, we use a declining WiFi link quality to forecast a handover. Our real world measurements show that both low energy consumption and high performance during the handover are possible at the same time.
- A. Croitoru, D. Niculescu, and C. Raiciu. Towards Wifi Mobility without Fast Handover. In NSDI 15. USENIX Association, 2015. Google ScholarDigital Library
- A. Ford, C. Raiciu, M. Handley, and O. Bonaventure. TCP Extensions for Multipath Operation with Multiple Addresses. RFC 6824, 2013.Google Scholar
- A. J. Nicholson and B. D. Noble. BreadCrumbs: Forecasting Mobile Connectivity. In MobiCom. ACM, 2008. Google ScholarDigital Library
- C. Paasch, G. Detal, F. Duchene, C. Raiciu, and O. Bonaventure. Exploring Mobile/WiFi Handover with Multipath TCP. In ACM SIGCOMM workshop Cellnet, 2012. Google ScholarDigital Library
- C. Perkins. IP Mobility Support for IPv4, Revised. RFC 5944, 2010.Google Scholar
- C. Raiciu, C. Paasch, S. Barre, A. Ford, M. Honda, F. Duchene, O. Bonaventure, M. Handley, et al. How Hard Can It Be? Designing and Implementing a Deployable Multipath TCP. In NSDI, 2012. Google ScholarDigital Library
- P. S. Schmidt, T. Enghardt, R. Khalili, and A. Feldmann. Socket Intents: Leveraging Application Awareness for Multi-access Connectivity. In CoNEXT. ACM, 2013. Google ScholarDigital Library
Index Terms
- Poster: Use your Senses: A Smooth Multipath TCP WiFi/Mobile Handover
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