Showing 133–138 of 138 results
User-Centric Energy Efficiency Maximization for Wireless Powered Communications Abstract? we consider wireless powered communication networks (WPCNs) where multiple users harvest energy from a dedicated power station and then communicate with an information receiving station in a time-division manner. Thereby, our goal is to maximize the weighted sum of the user energy efficiencies (WSUEEs). In contrast…
UWB Antenna for Brain stroke and Brain Tumour Detection Abstract?Abstract UWB Pentagon antenna is designed to detect brain stroke and brain tumour. It is operating at a band from 3.3568-12.604 GHz in free space and from 3.818 to 9.16 GHz on the normal head model. The antenna has dimensions of 44x30mm2.It is fabricated on FR4-substrate…
Visual voice activity detection as a help for speech source separation from convolutive mixtures Abstract?Visual voice activity detection as a help for speech source separation from convolutive mixtures. Audio-visual speech source separation consists in mixing visual speech processing techniques (e.g. lip parameters tracking) with source separation methods to improve and/or simplify the extraction of a…
Wang-shaped Patch Antenna with a Simple Feed Network Abstract? Microstrip patch antennas have attracted much attention of antenna engineers due to its low production cost and low profile. Its narrow bandwidth is a major disadvantage that limits its applications. Bandwidth broadening techniques such as the inclusion of U-slot [1] on a rectangular patch, the E-shaped…
Waveguide-Fed Tunable Terahertz Antenna Based on Hybrid Graphene-Metal Structure Abstract?Abstract This paper presents a novel tunable terahertz antenna based on a hybrid graphene-metal structure fed by a waveguide. First, the hybrid plasmonic waveguide is studied by analytical and numerical methods. Then, an efficient terahertz antenna is designed by an analytical approach using the transmission line…
Weighted Sum-Rate Maximization for MIMO Downlink Systems Powered by Renewables Abstract? Optimal resource management for smart grid powered multi-input multi-output (MIMO) systems is of great importance for future green wireless communications. A novel framework is put forth to account for the stochastic renewable energy sources (RES), dynamic energy prices, as well as random wireless channels….
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