Himawari-8 and -9 use new frequency bands for communication between the ... while the K u-band (12.2–12.75 GHz downlink, 13.75–14.5 GHz uplink) is used for telemetry and command operations. Each ...

63 Distributed machine learning based downlink channel estimation for RIS assisted wireless communications Linglong Dai, etal. 64 Uplink Cascaded Channel Estimation ... Channel Prediction for ...

Scientists in China have transmitted encrypted images a record 12,900 kilometers, paving the way for quantum messaging ...

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists ...

The world’s longest quantum communications link has been set up between China and South Africa, spanning a record-breaking 12,900 km (8,015 miles). The connection takes advantage of quantum physics ...

The United Nations on Tuesday urged countries to boost protections amid a marked increase in efforts to interfere with ...

Chinese researchers have made a major breakthrough by developing the world's first quantum microsatellite and demonstrating real-time QKD between the satellite and multiple compact, mobile ground ...

UK to be first country in Europe to move ahead with plans to enable satellite calls to be made from standard smartphones, ...

A major scientific leap has been made with the creation of the longest ultra-secure quantum satellite link between China and ...

A retired U.S. Air Force colonel, Cynamon headed the advanced concepts group in the service’s military satcom office in ...

Read about the Air Force’s upcoming requirements to integrate a protected tactical waveform teleport capability into its ...

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