Wireless links usually fight static. Stanford engineers instead made that unavoidable background chatter carry bits, without generating a conventional radio carrier.
A carrier made from background noise
The experimental transmitter switched an antenna between open and short circuits. Those states absorbed or reflected thermal noise differently, so the receiver saw two apparent noise temperatures and decoded zeros and ones. A newly derived channel model helped the team reach kilobit-per-second rates—more than two orders of magnitude above earlier demonstrations. [1][2]
A peer-reviewed lab result
The peer-reviewed PNAS paper was published online on October 20, 2026, following Stanford’s October 19 announcement. The researchers propose the method for tiny, power-limited sensors and places where an active radio signal could interfere with nearby equipment. [1][2]
What to keep in mind
This is a shielded laboratory demonstration, not a field-ready network. Range, reliability in noisier surroundings, and operation with many transmitters still need testing; the method is meant for small data loads.
Sources & context
Numbered references link the explanation to its sources. Hypothetical examples and visual metaphors are labelled in the text. Checked 31 October 2026.
- Stanford University — Thermal noise used to send data without an active signal (19 October 2026)
- Ecola et al. — First-principles channel model and capacity-achieving transmission scheme in thermal noise backscatter links, PNAS (online 20 October 2026; peer reviewed)
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