Short Bytes: A new transmitter tech demonstrated by a team of Japanese researchers enables a communication link of more than 100 Gbps over a single 25GHz channel using the 300Ghz frequency band, dubbed as ‘Terahertz’. They are uncovering more about their Terahertz wireless tech at the IEEE’s International Solid-State Circuits Conference 2017.
5Gor the fifth generation mobile networks, is expected to roll out sometime around 2020. But a new wireless tech demonstrated by a group of researchers is around 10 times faster than 5G. It’s capable of boosting speeds up to 100 Gbps over a single channel using a 300Ghz band – known as the Terahertz.The team includes researchers from Hiroshima University, the National Institute of Information and Communications Technology, and Panasonic Corporation. During the demonstration, their IC-based transmitter used a 25 GHz channel, ranging from 275Ghz to 450Ghz. They were able to establish a communication link of 105 Gigabit per second.
The 60 GHz band used by the WiGig standard is enough to fascinate us. But this is going insane at 300Ghz. And the 25 GHz channel, if you compare this with the 20 Mhz channels used in the current 4G LTE, it would be 1000 times.
A question arises out of curiosity. The band is 300Ghz, so why it’s being touted as terahertz? That’s because it is named so by the International Telecommunications Union (ITU). The terahertz spectrum includes baseband frequencies from 0.3THz (300GHz) to 3THz. Even the 5G technology’s frequency bands max out at 39Ghz.
The team also presented a version of their tech last year, where they demonstrated the use of quadrature amplitude modulation (QAM) that could enhance the speed over the 300GHz band. As per the latest demo, they have recorded a speed gain of around six times per channel.
However, there is a lot to be done before this tech can arrive in the market. We can foresee a possibility of ultrahigh-speed wireless networks in the future. The ones similar to the gigabit fiber networks but without the fiber.