Stanford researchers develop data transmission using thermal noise

Researchers at Stanford University have demonstrated a new method of wireless communication that utilizes thermal noise rather than conventional radio signals. Published in the Proceedings of the National Academy of Sciences (PNAS), the study introduces thermal noise communication, a technique that leverages the natural electrical fluctuations produced by electronic circuits.

The system works by using an antenna connected to a circuit that alternates between open and short-circuit states. These states modify how electromagnetic noise is reflected or absorbed, allowing for the representation of binary values. A sensitive receiver can then identify these changes to reconstruct information.

This approach offers significant efficiency gains, with the potential to reduce transmitter energy consumption by up to 1,000 times compared to conventional systems. Additionally, the method has shown transmission speeds 100 times faster than previous experiments, promising to drastically reduce the energy requirements for millions of Internet of Things (IoT) devices.