NTT renders 5G obsolete with 100-Gbps wireless demo

NTT OAM multiplexing
Image credit: NTT

NTT says it has successfully demonstrated for the first time 100-Gbps wireless transmission using a new principle called orbital angular momentum (OAM) multiplexing, with the aim of achieving terabit-class wireless transmission to support demand for wireless communications in the 2030s.

In a lab demo, NTT showed that dramatic leaps in transmission capacity could be achieved by a system that mounts data signals on electromagnetic waves generated by OAM multiplexing in combination with widely used MIMO technology.

NTT conducted transmission experiments at a distance of 10 meters in the lab using its own devised system operating in the 28 GHz frequency band. Eleven data signals – each at a bit rate from 7.2 to 10.8 Gbps – were simultaneously generated and carried by multiple OAM-multiplexed electromagnetic waves, thereby achieving a total bit rate of 100 Gbps.

A video tutorial is available.

NTT says the results of the experiment revealed the possibility of developing wireless broadband systems that are five times faster than 5G systems currently being planned for launch in the next couple of years.
NTT will present the results of the lab demo at Wireless Technology Park 2018 (WTP2018) to be held on May 23-25, as well as the 2018 IEEE 87th Vehicular Technology Conference: VTC2018-Spring, an international conference sponsored by the Institute of Electrical and Electronics Engineers (IEEE) to be held on June 3-6.

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