2023: Russia has come up with a way to increase the data transfer rate via power circuits by 2 times
On July 19, 2023, Russian researchers from Tomsk State University of Control Systems and Radio Electronics (TUSUR) announced the development of a new technology that allows to double the data transfer rate over power circuits (PLC).
Experts note that PLC is an alternative to wireless data transmission, which uses power lines as a signal propagation medium. The method, in particular, is suitable for building local secure networks without organizing additional cabling. In addition, the solution may be in demand in the space industry.
In their project, Russian scientists use full-duplex data transmission technology: devices are able to transmit and receive a signal at the same time, which doubles the throughput. However, in this case, it is necessary to suppress the own signal, which prevents the reception of a weak signal from a remote source.
 | In such communication systems, additional digital processing is used to compensate for this interference. We considered different approaches: the particle swarm method, the recursive least squares method and eventually settled on the latter, modifying it for more efficient work, "said Yevgeny Rogozhnikov, head of the Department of Telecommunications and Fundamentals of Radio Engineering (TOP), director of the regional Central Committee of the NTI in the direction of" Wireless Communications Technologies and the Internet of Things. " |  |
The developed software is an adaptive filter that operates in real time and adjusts to changing signal transmission conditions. In general, three methods of eliminating system interference are combined: passive suppression, analog compensation and digital compensation. This made it possible to achieve a suppression of 65 decibels. In the future, researchers intend to bring the figure to 90 decibels.[1]
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