Currently, the use of the internet focuses on wireless transmission via Wi-Fi, and we need the signal to reach the entire perimeter of the place where we are so that there is a good user experience. An efficient solution is the use of Access Points (AP), which are connected via ethernet cable to the modem/router provided by the operator and distribute the signal in the place where they were installed. However, researchers at Brigham Young University (BYU) think there is a way to improve signal transmission even more using the same equipment, only changing the behavior of the software.
The team of researchers at BYU created a protocol that allows you to add more than 60 meters to the distance (range) that the device would normally be able to transmit via Wi-fi. The name of the new software technology is called On-Off Noise Power Communication (ONPC), and it is capable of maintaining a speed of only 1 bit per second, which normally does not occur when the Wi-Fi signal is transmitted (it is required speeds of at least one megabit per second). This allows the device to send information of zeros (0s) and ones (1s), basically turning the signal on and off in a specific pattern, telling the Wi-Fi router, or Access Point, that the device is still transmitting. something (even if no data is being transmitted), thus managing to maintain the signal.
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"It's basically sending 1 bit of information to say the device is alive"
When tested, the ONPC protocol provided an increase in the range of the device by 67 meters more compared to standard Wi-Fi transmission. The best part is that the protocol can be programmed on top of the existing Wi-Fi protocol, as it is based entirely on software, making it possible to implement the technology in any device capable of transmitting Wi-Fi signal through a simple Firmware update.
Fonte: Engadget, Brigham Young University
