Abstract: We investigate spectrum sensing in cognitive radios with large antenna arrays. Gigantic MIMO and extra-large array antennas are fundamental technologies in 5G and future 6G networks, as well ...

SEOUL, Oct. 20 (Yonhap) -- Kia Corp., South Korea's second-largest automaker, on Monday showcased a lineup of its military mobility platforms at the Seoul International Aerospace & Defense Exhibition ...

Abstract: We propose a simultaneous multifrequency near-field radio holography method for measuring reflector surfaces of radio telescopes with high precision. With a comb spectrum generator as the ...

SALT LAKE CITY — His resistance movement started quietly. When 16-year-old Helmuth Hübener's (Ewan Horrocks) Jewish friend disappeared at the hands of German Nazis, he began listening to banned ...