Abstract: In this correspondence, we investigate the uplink channel estimation for mmWave extremely large-scale multiple-input multiple-output (XL-MIMO) communication system. Our primary emphasis is ...

Copyright: © 2025 The Author(s). Published by Elsevier Ltd. The African Breast Cancer-Disparities in Outcomes (ABC-DO) prospective cohort study was done at eight ...

China’s Victory Day parade in September showed off a new, uncrewed submarine the size of a semi-truck — meant to keep tabs on US vessels and seafloor cables — and shined a spotlight on Beijing’s ...

Abstract: Subarray technique is an effective approach for reducing the cost of a phased array system. Although integrating multiple elements into a subarray can reduce the number of radio frequency ...

Oct. 9 (UPI) --The U.S. Navy has fired the commanding officer of the USS Wyoming Blue Crew, the service has announced. Cmdr. Robert Moreno was relieved of his duties after staff lost confidence in his ...

The collapse of an auto lender in Texas is a warning about the strains on lower-income Americans, said Amelia Pollard in the Financial Times. Tricolor Holdings, which specialized in loans to subprime ...

cMedical Research Council Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, UK ...