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Tag Archive: Ns2 simulator Projects

TEES: An Efficient Search Scheme over Encrypted Data on Mobile Cloud

Cloud storage provides a convenient, massive, and scalable storage at low cost, but data privacy is a major concern that prevents users from storing files on the cloud trustingly. One way of enhancing privacy from data owner point of view is to encrypt the files before outsourcing them onto the cloud and decrypt the files […]

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Optimal dosimeter deployment into a smart city IoT platform for wideband EMF exposure assessment

LEXNET project, funded by the European Commission, is introducing new concepts for the assessment of the population EMF exposure. It also aims at evaluating the capability of future technologies to reduce this EMF exposure. The platform presented in this paper is an original tool for a continuous measurement of the multi-band downlink Electric Field strength […]

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Interdatacenter Job Routing and Scheduling With Variable Costs and Deadlines

To reduce their operational costs, datacenter (DC) operators can schedule large jobs at DCs in different geographical locations with time- and location-varying electricity and bandwidth prices. We introduce a framework and algorithms to do so that minimize electricity and bandwidth cost subject to job indivisibility, deadlines, priorities, and DC resource constraints. In doing so, we […]

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Unravelling the Impact of Temporal and Geographical Locality in Content Caching Systems

To assess the performance of caching systems, the definition of a proper process describing the content requests generated by users is required. Starting from the analysis of traces of YouTube video requests collected inside operational networks, we identify the characteristics of real traffic that need to be represented and those that instead can be safely neglected. […]

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Ambient Control: A mobile framework for dynamically remixing the Internet of Things

The number of networked smart devices available in everyday environments is rapidly increasing; however, many current devices adopt mutually incompatible networks, protocols, and application programming interfaces. As such, creating mobile applications that dynamically discover and integrate ambient functionality across multiple vertical markets remains challenging. In this paper, we introduce a novel middleware framework, called Ambient Control, which enables […]

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DSearching: Using Floating Mobility Information for Distributed Node Searching in DTNs

In delay tolerant networks (DTNs), enabling a mobile node to search and find another interested mobile node is an important function in many applications. However, the movement of nodes in DTNs makes the problem formidable. Current node searching methods in disconnected networks mainly rely on fixed stations in the network and infrastructure-based communication to collect node position information, which is difficult […]

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An Energy-efficient Nonvolatile In-memory Computing Architecture for Extreme Learning Machine by Domain-wall Nanowire Devices

The data-oriented applications have introduced increased demands on memory capacity and bandwidth, which raises the need to rethink the architecture of the current computing platforms. The logic-in-memory architecture is highly promising as future logic-memory integration paradigm for high throughput data-driven applications. From memory technology aspect, as one recently introduced non-volatile memory (NVM) device, domain-wall nanowire […]

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Leader-Following Coordination of Nonlinear Agents under Time-varying Communication Topologies

The paper deals with the problem of synchronizing the outputs of a set of nonlinear agents that exchange information through a time-varying communication network in a leaderfollower configuration. The dynamics of the individual followers may differ from each other and from that of the leader. The information exchange between the leader and (a limited fraction of) the […]

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Compact Fluorescent Lamp Modeling for Large-Scale Harmonic Penetration Studies

Low-watt compact fluorescent lamps (CFLs) may account for significant energy consumption of power distribution feeders in future years. This can lead to power-quality concerns because these devices consume highly distorted currents. In order to predict CFL harmonic current emissions into networks, CFL models capable of predicting these emissions accurately are being studied. On the other hand, […]

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Teleoperation of mining equipment using Optical Wireless Communications

Penguin Automated Systems Inc. is presently evaluating the world’s first omnidirectional Optical Wireless Communications (OWC) network customized to teleoperate mobile equipment in surface, underground and underwater mining operations. Experimental results of novel technologies that made this possible are presented here: a mode programmable On-Off-Keying (OOK), Orthogonal Frequency Division Modulations (OFDM) Half-Duplex LED driver, and a single photodetector […]

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