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Modern industrial, government, and academic organizations are collecting massive amounts of data (" big data ") at an unprecedented scale and pace. The ability to perform timely and cost-effective analytical processing of such large datasets to extract deep insights is now a key ingredient for success. These insights can drive automated processes for(More)
Despite its compactness, the human eye can easily focus on different distances by adjusting the shape of its lens with the help of ciliary muscles. In contrast, traditional man-made optical systems achieve focusing by physical displacement of the lenses used. But in recent years, advances in miniaturization technology have led to optical systems that no(More)
However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and(More)
Student performance in middle school math and science is in a perilous state. This crisis is reflected in results on key national assessments such as NAEP that indicate that less than one-third of students in the 8 th grade perform at a proficient or higher level in math or science. To address this issue, an innovative Instructional Model, the 4E x 2 Model,(More)
— The fast fading mobile radio channels place fundamental limitations on the performance of wireless communication systems, such that the prediction of the changing channel behaviors is of interest. For the frequency-selective fading channels in wideband systems, the knowledge of the channel transfer function over the entire frequency band is required. In(More)
— Spectrum sensing is crucial for dynamic spectrum management systems. In this paper, we propose a scheme that utilizes the guard interval of OFDM symbol at the transmitter for spectrum sensing. The cyclic prefix is not inserted in the guard interval at the transmitter, whereas the circulant convolution is secured at the OFDM receiver through the proposed(More)