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Many significant sources of error take place in the smart antenna system like mismatching between the supposed steering vectors and the real vectors, insufficient calibration of array antenna, etc. These errors correspond to adding spatially white noise to each element of the array antenna, therefore the performance of the smart antenna falls and the desired output signal is destroyed. This paper...
In opportunistic mobile crowdsensing, data can be collected by leveraging human mobility and smartphones' sensors. In this paper, we propose Re-OPSEC, a framework for tasking effective providers from the crowd at real time in energy efficient way. Re-OPSEC piggybacks sensing tasks with volunteer-specific connectivity patterns called online episodes. That is those times when smartphones have a mobile...
Formal Concept Analysis (FCA) is a prominent field of applied mathematics using formal concepts — maximal clusters of object-attribute relationships — to discover, process, and represent knowledge in so-called conceptual hierarchies. Its efficient algorithms and expressive power makes FCA suitable to unify methodologies and to provide an in-depth insight on knowledge structures [1], [2]. Electronic...