Abstract
Peer-to-peer transfers allow for sharing crowd monitoring data despite the loss of network connectivity. However, limited insight into real-world deployment contexts can let the protocol design go astray - particularly, if a certain nature of participant behaviour and connectivity changes is assumed. This paper focuses on the delivery of crowd monitoring data. It puts a protocol out for a reality check that switches to peer-to-peer (p2p) communication when the infrastructure network connection is lost. The evaluation at an annual indoor fair asked visitors to make their phones visible to peers, run the protocol, and share crowd monitoring data. The results show that most of the participants formed a large radio cluster throughout the event. This made p2p networking only possible and enabled a more robust upload of crowd monitoring data. However, dynamic switching between infrastructure network and p2p communication also increased the volatility of the system, calling for future optimizations. The presented measurement results provide further insights into these details.
This research is funded by the German Research Foundation (DFG) under GR 4517/1-1.
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Groba, C., Schill, A. (2020). Peer-to-Peer Transfers for Crowd Monitoring - A Reality Check. In: Gaj, P., Gumiński, W., Kwiecień, A. (eds) Computer Networks. CN 2020. Communications in Computer and Information Science, vol 1231. Springer, Cham. https://doi.org/10.1007/978-3-030-50719-0_6
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DOI: https://doi.org/10.1007/978-3-030-50719-0_6
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