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Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

The R8 is Audi's iconic mid-engine supercar. With a V-10 engine mounted behind the driver, the R8 represents the pinnacle of Audi's performance and styling capabilities. Despite its track-ready ...

I shoot with a camera on each hip – because as a photographer who favors prime lenses, I wanted a bright aperture without sacrificing versatility. But while photographers have long been faced with the ...