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The cognitive radio (CR) technology allows secondary users (SUs) to occupy the licensed bands opportunistically without causing interferences to primary users (PUs). SUs perform spectrum sensing to detect whether PUs are busy or idle. Therefore, spectrum sensing directly affects the performance of the PU protection and the secondary throughput. The sensing time is a critical parameter for spectrum...
Performance improvement of computer system I/O has been slower than CPU and memory technologies in terms of latency, bandwidth, and other factors. Based on this observation, how I/O is performed needs to be re-examined and explored for optimizations. To optimize the performance of computer system having multiple CPU cores and integrated memory controllers, we re-visits a CPU oriented I/O method where...
Many challenges and limitations stand in the way of streaming high resolution video content over a wireless network. A shift towards the 60-GHz band is taking place in order to accommodate for current High Definition streaming demands. However, today's Wi-Fi networks are able to provide the necessary bandwidth with the help of compression. In this paper we evaluate the effectiveness of streaming video...
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