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My Smartphone tattles: Considering Popularity of Messages in Opportunistic Data Dissemination

1
Sustainable Communications Networks Group, University of Bremen, 28359 Bremen, Germany
2
Institute of Communication Networks, Hamburg University of Technology, 21073 Hamburg, Germany
*
Author to whom correspondence should be addressed.
Future Internet 2019, 11(2), 29; https://doi.org/10.3390/fi11020029
Received: 21 December 2018 / Revised: 17 January 2019 / Accepted: 22 January 2019 / Published: 29 January 2019
(This article belongs to the Special Issue Opportunistic Networks in Urban Environment)
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Abstract

Opportunistic networks have recently seen increasing interest in the networking community. They can serve a range of application scenarios, most of them being destination-less, i.e., without a-priori knowledge of who is the final destination of a message. In this paper, we explore the usage of data popularity for improving the efficiency of data forwarding in opportunistic networks. Whether a message will become popular or not is not known before disseminating it to users. Thus, popularity needs to be estimated in a distributed manner considering a local context. We propose Keetchi, a data forwarding protocol based on Q-Learning to give more preference to popular data rather than less popular data. Our extensive simulation comparison between Keetchi and the well known Epidemic protocol shows that the network overhead of data forwarding can be significantly reduced while keeping the delivery rate the same. View Full-Text
Keywords: opportunistic networking; popularity; OMNeT++; OPS; organic data dissemination; Keetchi; Epidemic opportunistic networking; popularity; OMNeT++; OPS; organic data dissemination; Keetchi; Epidemic
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Udugama, A.; Dede, J.; Förster, A.; Kuppusamy, V.; Kuladinithi, K.; Timm-Giel, A.; Vatandas, Z. My Smartphone tattles: Considering Popularity of Messages in Opportunistic Data Dissemination. Future Internet 2019, 11, 29.

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