Abstract
Delay Tolerant Networks (DTNs) are not like the Internet, where contemporaneous connectivity among all nodes is always available. We need to design a new relay node deployment strategy, which can make DTNs more reliable and fault-tolerant. In this paper, we propose a fault-tolerant relay node deployment strategy for throwbox-based DTNs. It employs an approximation algorithm to choose throwbox placement locations, and to construct a 2-COnnected DTN, called \(CO_2\), where each mobile node can communicate with at least two relay nodes within its activity scope. Simulation results based on Tuscaloosa bus transit system have shown its effectiveness and high efficiency when compared to two types of popular relay node deployment strategies in the literature.
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Acknowledgments
This work was supported in part by the National Science Foundation (NSF) under grants CCF-0829827 and CCF-0829828.
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Han, W., Xiao, Y. (2016). \(CO_2\): Design Fault-Tolerant Relay Node Deployment Strategy for Throwbox-Based DTNs. In: Yang, Q., Yu, W., Challal, Y. (eds) Wireless Algorithms, Systems, and Applications. WASA 2016. Lecture Notes in Computer Science(), vol 9798. Springer, Cham. https://doi.org/10.1007/978-3-319-42836-9_4
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DOI: https://doi.org/10.1007/978-3-319-42836-9_4
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