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A union of photonics and electronics for record-breaking data transmission.
British scientists have managed to accelerate communication to an incredible 938 gigabits per second. This was done by a group from University College London led by Zhixin Liu. Their technology literally surpassed the average performance of modern 5G networks by 9000 times.
The technology allows you to download more than 20 full-length movies every second. Researchers have set a new record for multiplexed data combining multiple signals into a single stream. Or rather, signals of various types.
An unprecedentedly wide range of frequencies was used - from 5 to 150 gigahertz. The combination of radio waves and light radiation made it possible to significantly expand the data transmission channels. Up to this point, electronic and optoelectronic methods have been used separately due to difficulties with frequency synchronization.
Initially, the experiment was conducted to assess the potential of future 6G networks. According to Liu, if modern 5G networks can be compared to a narrow, busy road, then their solution turns it into a ten-lane highway.
The team also developed a hybrid signal generation system. For frequencies of 5-75 GHz, high-speed digital-to-analog converters were used. For higher millimeter-wave frequencies, including the W-band (75-110 GHz) and D-band (110-150 GHz), mixing optically modulated signals with frequency-stabilized photodiode lasers was used.
Phase noise was reduced due to the synchronization of two pairs of lasers with a narrow emission line relative to a common quartz oscillator. It was this approach that made it possible to use the entire available frequency spectrum as efficiently as possible. Using OFDM (orthogonal frequency multiplexing) and bitload, the researchers achieved a data rate of 938 Gbps with minimal intervals between different bands of less than 300 MHz.
Although the record was multiplexed, individual signals were transmitted even faster, at a rate of more than one terabit per second.
Liu's team is already in talks with smartphone manufacturers and telecom operators about the practical application of the technology. At the same time, Japanese telecommunications companies have introduced their own device for 6G networks, capable of transmitting data 20 times faster than 5G. Their development provides a speed of 100 Gbps at a distance of up to 100 meters.
The new technology is particularly important for the development of next-generation radio networks (RANs), which require ultra-high wireless data rates between base stations — more than 100 Gbps — to connect access points and communication nodes.
Source
British scientists have managed to accelerate communication to an incredible 938 gigabits per second. This was done by a group from University College London led by Zhixin Liu. Their technology literally surpassed the average performance of modern 5G networks by 9000 times.
The technology allows you to download more than 20 full-length movies every second. Researchers have set a new record for multiplexed data combining multiple signals into a single stream. Or rather, signals of various types.
An unprecedentedly wide range of frequencies was used - from 5 to 150 gigahertz. The combination of radio waves and light radiation made it possible to significantly expand the data transmission channels. Up to this point, electronic and optoelectronic methods have been used separately due to difficulties with frequency synchronization.
Initially, the experiment was conducted to assess the potential of future 6G networks. According to Liu, if modern 5G networks can be compared to a narrow, busy road, then their solution turns it into a ten-lane highway.
The team also developed a hybrid signal generation system. For frequencies of 5-75 GHz, high-speed digital-to-analog converters were used. For higher millimeter-wave frequencies, including the W-band (75-110 GHz) and D-band (110-150 GHz), mixing optically modulated signals with frequency-stabilized photodiode lasers was used.
Phase noise was reduced due to the synchronization of two pairs of lasers with a narrow emission line relative to a common quartz oscillator. It was this approach that made it possible to use the entire available frequency spectrum as efficiently as possible. Using OFDM (orthogonal frequency multiplexing) and bitload, the researchers achieved a data rate of 938 Gbps with minimal intervals between different bands of less than 300 MHz.
Although the record was multiplexed, individual signals were transmitted even faster, at a rate of more than one terabit per second.
Liu's team is already in talks with smartphone manufacturers and telecom operators about the practical application of the technology. At the same time, Japanese telecommunications companies have introduced their own device for 6G networks, capable of transmitting data 20 times faster than 5G. Their development provides a speed of 100 Gbps at a distance of up to 100 meters.
The new technology is particularly important for the development of next-generation radio networks (RANs), which require ultra-high wireless data rates between base stations — more than 100 Gbps — to connect access points and communication nodes.
Source
