The team deployed two trucks containing sensor systems to perform 5G signal geolocation based on angle-of-arrival estimates. Credit: Massachusetts Institute of Technology Fifth-generation, or 5G, mobile network technology is all…
Tag: Telecom
Acquiring CSI in RIS-assisted mobile communication systems
(a) Units in a passive RIS only have the reflection mode and cannot amplify the incident wave. (b) A selection-type hybrid RIS has a few active sensors. A switch is…
Satellite security lags decades behind the state of the art
The inside of a small satellite. Credit: RUB, Marquard Thousands of satellites are currently orbiting the Earth, and there will be many more in the future. Researchers from Ruhr University…
As if air travel isn’t hard enough, 5G wireless signals could disrupt flights starting this weekend
People travel through Salt Lake City International Airport Friday, June 30, 2023, in Salt Lake City. Credit: AP Photo/Rick Bowmer Airline passengers who have endured tens of thousands of weather-related…
Lasers enable internet backbone via satellite, may soon eliminate need for deep-sea cables
The researchers tested data transmission by laser over 53 kilometres from the Jungfraujoch to Zimmerwald near Bern. Credit: ETH Zurich Optical data communications lasers can transmit several tens of terabits…
A K-/Ka-band planar shared-aperture beam-scanning array
Proposed co-polarized shared-aperture beam-scanning array antenna. Credit: Science China Press With the rapid development of modern wireless systems such as radar and communications, there is an urgent need for the…
System design and experimental results
A novel CF-mMIMO architecture. Credit: Science China Press A long-form review titled “Full-spectrum Cell-free RAN for 6G Systems: System design, and Experimental Results” was published in Science China Information Sciences.…
Surface steers signals for next-gen networks
Computer science Ph.D. student Kun Woo Cho is the lead author of a study on mmWall, a new device that steers higher-frequency 5G signals, or mmWave signals, to get around…
