With this invention, there is no longer any need for a repeater to increase the range of Wi-Fi sound, nor to change equipment. Be careful, however, it will first be reserved for connected devices that exchange little data…

Researchers at Brigham Young University in the United States have just developed a new protocol, called On-Off Noise Power Communication or ONPC, that could increase the range of Wi-Fi networks by more than 60 meters. This technological advance does not require any new hardware and could be added to any Wi-Fi device and terminal by simply updating the software.

Currently, networks require a throughput of at least one megabit per second (1 Mbps) to maintain the connection and transmit data. The ONPC protocol reduces this limit to only one bit per second. A device too far away to transmit in a conventional way sends data in the form of noise that the terminal can distinguish from other signals. It then recognizes that the device is trying to communicate.

A protocol for connected objects

What is the point of such a system? The ONPC protocol clearly does not seek to improve the range of smartphones and laptops. Rather, it is intended for certain types of connected objects whose presence alone constitutes a data, such as a garage door sensors or motion detectors. The connection attempt thus reveals that an event has occurred that requires data transmission, which may be sufficient for this type of device.

This technology would complement other wireless technologies. “We can send and receive data independently of the current Wi-Fi activity. All you need is the ability to transmit energy and receive noise measurements,” said Phil Lundrigan, one of the researchers. “We could also apply this protocol to mobile or Bluetooth networks. »

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