Fani Tsapeli

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We investigate the problem of routing in opportunistic networks and propose a novel routing algorithm, which combines probabilistic routing with erasure coding. Erasure coding generates large amounts of code blocks with fixed overhead; we apply a sophisticated but realistic method to allocate the generated code blocks to nodes that relies on a probabilistic(More)
Although Interplanetary Telecommunications rely on preconfigured contact schedules to make routing decisions, there is a lack of appropriate mechanisms to notify the network about contact plan changes. In order to fill this gap, we propose and evaluate a framework for disseminating information about queueing delays and link disruptions. In this context, we(More)
During the last years, the interest in Delay/Disruption Tolerant Networks has been significantly increased, mainly because DTN covers a vast spectrum of applications, such as deep-space, satellite, sensor and vehicular networks. Even though the Bundle Protocol seems to be the prevalent candidate architecture for delay-tolerant applications, some practical(More)
Smartphones and wearables have become an indispensable part of our daily life. Their improved sensing and computing capabilities bring new opportunities for human behavior monitoring and analysis. Most work so far has been focused on detecting correlation rather than causation among features extracted from smartphone data. However, pure correlation analysis(More)
Keywords: Mobile data offloading WiFi Opportunistic networks Delay tolerant networks Mobility Peer-assisted communications a b s t r a c t Data offloading through WiFi networks has been identified as a promising solution to cellular network congestion caused by the ongoing explosive growth in mobile data traffic. In this paper, we propose Cost-Effective(More)
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