Abstract: In this paper, beam training and beam tracking are investigated for extremely large-scale multiple-input-multiple-output communication systems with partially-connected hybrid combining ...

Abstract: Extremely large-scale multiple-input-multiple-output (XL-MIMO) has been reviewed as a promising technology for future sixth-generation (6G) networks to achieve higher performance. In ...

The upcoming Extremely Large Telescope is designed to capture images with far greater detail than any ground-based observatory before it. Its massive mirror and adaptive optics system could allow it ...

NIAGARA-ON-THE-LAKE, Canada, Nov 12 (Reuters) - European Union foreign policy chief Kaja Kallas told Reuters on Wednesday that an energy corruption scandal in Ukraine was “extremely unfortunate” and ...

Scientists report the discovery of a giant sauropod dinosaur, Tongnanlong zhimingi – Late Jurassic giant from southwestern China estimated at up to 92-feet-long. The fossil was found in Chongqing’s ...