Abstract: The high Doppler effect and severe multipath delay are among the major challenges in air-to-ground (A2G) communication scenarios, where the maximum multipath delay may exceed the duration of ...

Between smoke, stones and debris, groups of rescuers and volunteers working against the clock to save as many lives as possible, have managed to communicate to systematize their work, transforming the ...

President Donald Trump has continued his attempts to paint Portland as a crime-ridden “never-ending disaster,” due in part to the protests taking place at the Immigration and Customs Enforcement (ICE) ...