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Delay tolerant network (DTN) is an intermittently connected mobile wireless network in which the connectivity between nodes changes frequently due to nodes' movement. Recently, there have been a lot of researches working on this area. However, to the best of our knowledge, no work has addressed on the DTN routing which focuses on the heterogeneous network environment in the literature. In this work,...
Underwater wireless sensor networks (UWSNs) is a novel networking paradigm to explore aqueous environments. The characteristics of mobile UWSNs, such as low communication bandwidth, large propagation delay, floating node mobility, and high error probability, are significantly different from terrestrial wireless sensor networks. Energy-efficient communication protocols are thus urgently demanded in...
A number of peer to peer (P2P) systems as well as mobile ad-hoc networks (MANETs) fall into the category of ad hoc groups. Their needs for security have been widely recognized, so some signature schemes had been introduced for the ad hoc group. On the basis of analyzing those schemes, we propose a threshold ring signature from bilinear pairings for ad hoc groups. On the basis of analyzing the proposed...
Location-based services are using information about where a mobile device is located. Such services bring convenience to mobile user but also provide criminals with powerful weapons to compromise the privacy of mobile user. To address the location privacy issue, much architecture for location privacy control was presented and experimented. Qi He proposed a special and feasible architecture, using...
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