Abstract: Extremely large-scale multiple-input multipleoutput (XL-MIMO) systems emerge as a critical enabler for $\mathbf{6 G}$ networks demanding enhanced spectral efficiency. The adopted extremely ...

Abstract: Optimizing the layout for large-scale and ultra-wideband arrays to reduce the peak sidelobe level (PSLL) under multiple constraints is a challenging task. This paper proposes an efficient ...

The 2025 energy transition in eight charts: clean wins, dirty setbacks For supporters of the energy transition, 2025 had plenty to complain about: the scrapping of U.S. clean energy policies, wind ...

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Be sure to bookmark this list of the best cafes in Causeway Bay so you don't forget where to find your next perfect brew.