Relieving the Wireless Infrastructure: When Opportunistic Networks Meet Guaranteed Delays

Abstract : Major wireless operators are nowadays facing network capacity issues in striving to meet the growing demands of mobile users. At the same time, 3G-enabled devices increasingly benefit from ad hoc radio connectivity (e.g., Wi-Fi). In this context of hybrid connectivity, we propose Push-and-track, a content dissemination framework that harnesses ad hoc communication opportunities to minimize the load on the wireless infrastructure while guaranteeing tight delivery delays. It achieves this through a control loop that collects user-sent acknowledgements to determine if new copies need to be reinjected into the network through the 3G interface. Push-and-Track includes multiple strategies to determine how many copies of the content should be injected, when, and to whom. The short delay-tolerance of common content, such as news or road traffic updates, make them suitable for such a system. Based on a realistic large-scale vehicular dataset from the city of Bologna composed of more than 10,000 vehicles, we demonstrate that Push-and-Track consistently meets its delivery objectives while reducing the use of the 3G network by over 90%.
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John Whitbeck, Yoann Lopez, Jérémie Leguay, Vania Conan, Marcelo Dias de Amorim. Relieving the Wireless Infrastructure: When Opportunistic Networks Meet Guaranteed Delays. The IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks (WOWMOM), Jun 2011, Lucca, Italy. pp.1-10, ⟨10.1109/WoWMoM.2011.5986466⟩. ⟨hal-01285689⟩



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