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Availability is a critical requirement in any modern information system. For many classes of sensor networks, random deployment cannot be avoided and the associated wireless network connectivity characteristics significantly impact system availability. A highly available network must be able to sustain services such as data gathering and event-detection even during link losses owing to reasons that...
In randomly-deployed wireless mission critical networks, the crucial steps of ad hoc route setup and node localization are vulnerable to various security breaches and attacks. In this paper, we introduce SIRLoS, a lightweight secure integrated routing and localization scheme which addresses this problem by exploiting the security benefits of link directionality in directed networks that have found...
In this paper we introduce OPSENET, a novel and efficient protocol that facilitates secure routing in directional optical sensor networks. We show that even though the uni- directionality of links in an optical sensor network (OSN) complicates the design of efficient routing, link directionality actually helps security in our network setup. In particular, we leverage the naturally-occurring clustering...
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