John Sadowsky

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In multiuser wireless networks, opportunistic scheduling can improve the system throughput and thus reduce the total completion time. In this paper, we explore the possibility of reducing the completion time further by incorporating traffic information into opportunistic scheduling. More specifically, we first establish convexity properties for(More)
Wavelet transforms have recently emerged as a mathematical tool for multiresolution decomposition of signals. They have potential applications in many areas of signal processing that require variable time–frequency localization. The continuous wavelet transform is presented here, and its frequency resolution is derived analytically and shown to depend(More)
In multiuser wireless networks, opportunistic scheduling can improve the system throughput and thus reduce the total completion time. In this paper, we explore the possibility of reducing the completion time further by incorporating traffic information into opportunistic scheduling. In particular, we first establish general properties for opportunistic(More)
A new method for direct numerical simulation of electromagnetic or acoustic wave scattering by randomly rough surfaces is presented. The numerical scheme is derived from the well-known method of moments, in which the surface current integral equation is discretized to form a large matrix inverse problem. The simulations use recent advances in the efficient(More)
collaborative team involving the Milton S. Eisenhower Research and Technology Development Center, the Technical Services Department, and the Business and Information Services Department of the Applied Physics Laboratory has designed, developed, and implemented an infrared hazard warning system for subway stations. The Infrared Integrated Indicating System(More)
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