Communication by means of modulated Johnson noise.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 36445963.
- Also identified by DOI 10.1073/pnas.2201337119 and PMC identifier 9894108.
- Licence recorded as CC BY-NC-ND.
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Abstract
We present the design of a passive wireless communication method that does not rely on ambient or generated RF sources. Instead, the method modulates the Johnson (thermal) noise of a resistor to transmit information bits wirelessly. By selectively connecting or disconnecting a matched resistor to an antenna, the system can achieve data rates of up to 26 bps and distances of up to 7.3 m. This communication method operates at very low power, similar to that of an RFID tag, with the advantage of not requiring a preexisting RF signal to reflect.
Medical subject headings
- Communication