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This paper addresses the problem of joint optimization of subchannel selection and spectrum sensing time for multiband cognitive radio networks. In particular, we construct a multiband spectrum sensing framework, and derive the probabilities of detection and false alarm taking the different subchannel gain into account. Furthermore, we formulate the multiband sensing as a two-parameter optimization...
In this paper, the motivation is to integrated chemical and biomedical separation, analysis and assay techniques into a PCB technology-based system with LED light source, smart CMOS vision sensor and lab-on-a-chip device. One high sensitivity low noise pinned-photodiode smart CMOS vision sensor is designed and fabricated in this paper. The measurement shows that the maximum sensitivity is about 0...
Managing and reducing prognostic uncertainty is of significant importance to the success of PHM applications. The focus of prognosis uncertainty management is to identify and manage the reducible uncertainties by applying available data using appropriate uncertainty management algorithms. Particularly for dynamic model-based systems, opportunities exist to apply nonlinear filtering to provide a systematic...
This paper proposes a novel approach for multi-document summarization based on subtopic segmentation. It firstly detects the subtopics in a topic, and then finds the central sentence for each subtopic. The sentences are scored based on their importance in the document and in the subtopic. Two anti-redundancy strategies are used to extract sentences to form summarization. Since our approach is intrinsically...
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