Fast track article: Push-and-track: Saving infrastructure bandwidth through opportunistic forwarding
Pervasive and Mobile Computing
Opportunistic message routing using multi-layer social networks
Proceedings of the 2nd ACM workshop on High performance mobile opportunistic systems
Preventing spam in opportunistic networks
Computer Communications
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Opportunistic routing protocols can enable message delivery in disconnected networks of mobile devices. To conserve energy in mobile environments, such routing protocols must minimise unnecessary message-forwarding. This paper presents an opportunistic routing protocol that leverages social role information. We compute node roles from a social network graph to identify nodes with similar contact relationships, and use these roles to determine routing decisions. By using pre-existing social network information, such as online social network friends, to determine roles, we show that our protocol can bootstrap a new opportunistic network without the delay incurred by encounter-history-based routing protocols such as SimbetTS. Simulations with four real-world datasets show improved performance over SimbetTS, with performance approaching Epidemic routing in some scenarios.