Automatic modulation classification (AMC) is an essential technology in modern communications, enabling the identification of various signal modulation schemes without prior knowledge, thereby ...

Modulation is fundamental to electronic communications. The modulating signal might be analog in nature (voice or music) or digital bit streams. Most modern communication systems are digital, using ...

TOKYO--(BUSINESS WIRE)--NTT Corporation (President and CEO: Akira Shimada, “NTT”) has succeeded in the world’s fastest 1 optical transmission experiment of digital coherent 2 optical signals exceeding ...

With 40 Gbps and 100 Gbps networks on the way, engineers are applying RF digital modulation techniques to optical signals. Modulation techniques such as DPSK and DQPSK are moving into wireline optical ...

Researchers have shown how ultrastable optical signals from optical clocks can be transmitted across tens of kilometers of deployed multicore fiber carrying telecommunications data. Nazanin Hoghooghi, ...

TOKYO--(BUSINESS WIRE)--NTT Corporation (NTT, Head office: Chiyoda-ku Tokyo; President & CEO: Akira Shimada) has developed a digital coherent signal processing circuit and optical device that achieves ...

The world around us hums with invisible signals, carrying everything from our favorite radio tunes to crucial communication data. At the heart of many of these wireless technologies lies the elegant ...