Subj : 6G mobile networks could reach one terabit per second  researcher
To   : All
From : TechnologyDaily
Date : Tue Feb 13 2024 20:45:05

6G mobile networks could reach one terabit per second  researchers unveil 
record-breaking wireless transmission technology that aims to quadruple its 
performance

Date:
Tue, 13 Feb 2024 20:29:09 +0000

Description:
Researchers have achieved a single-channel transmission rate of 240GB/s for 
6G and are aiming for 1TB/s.

FULL STORY
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In a potentially promising breakthrough, researchers from Osaka University 
and IMRA America have unveiled a single channel optical wireless link that 
can achieve speeds of up to 240GB/s, a new world record. The team is now 
setting its sights on quadrupling this performance to reach an unprecedented 
1TB/s. 

 eeNews Europe reports that the researchers used a stimulated Brillouin 
scattering laser to generate signals at 300GHz for 6G networks. This laser 
employs interactions between sound and light waves to produce a precise 
signal. 

The team then established a 300GHz-band wireless communication system that 
utilizes this laser-based signal generator in both the transmitter and 
receiver. Highest transmission rate in the world 

The sub-terahertz band, ranging from 100 GHz to 300 GHz, is the playground 
for these 6G transmitters and receivers. To further boost the data 
transmission rate of these wireless links, the researchers used a 
sophisticated approach called "multi-level signal modulation". However, this 
method becomes highly sensitive to noise when operating at the top end of 
these frequencies. 

For efficient functioning, multi-level signal modulation relies on precise 
reference signals. When these signals start to shift, phase noise negatively 
impacts the performance of the multi-level signal modulation. To counter 
this, the system uses online digital signal processing (DSP) to demodulate 
the signals in the receiver and increase the data rate. 

Tadao Nagatsuma, the project leader, proudly announced, "Our team achieved a 
single-channel transmission rate of 240GB/s. This is the highest transmission 
rate obtained so far in the world using online DSP." 

The researchers are optimistic that with the use of multiplexing techniques, 
which allow for more than one channel to be used, and more sensitive 
receivers, they can push the data rate to 1TB/s, setting the stage for the 
next generation of 6G mobile networks. More from TechRadar Pro What is 6G? 
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T hese are the best secure routers around today



======================================================================
Link to news story:
https://www.techradar.com/pro/6g-mobile-networks-could-reach-one-terabit-per-s
econd-researchers-unveil-record-breaking-wireless-transmission-technology-and-
aims-to-quadruple-its-performance


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