2021/11/16 by Zerina Kapetanovic, Miguel Morales, M. F. Morales +1 · 3 voices · 6 citations
Computer Science · Engineering · #Bluetooth and Wireless Communication Technologies #Power Line Communications and Noise #Semiconductor Lasers and Optical Devices #cs.ET #cs.NI #eess.SP
paper · pdf · doi:10.1073/pnas.2201337119
openalex publication_date 2022/11/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
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.