NB-Fi Protocol is an open
LPWAN
A low-power, wide-area network (LPWAN or LPWA network) is a type of wireless telecommunication wide area network designed to allow long-range communication at a low bit rate between IoT devices, such as sensors operated on a battery.
Low pow ...
protocol, which operates in unlicensed
ISM radio band
The ISM radio bands are radio band, portions of the radio spectrum reserved internationally for ''industrial, scientific, and medical'' (ISM) purposes, excluding applications in telecommunications.
Examples of applications for the use of radio fr ...
. Using the NB-Fi Protocol in devices allows data transmission range of up to 10 km in dense urban conditions, and up to 30 km in rural areas with up to 10 years on battery power.
NB-Fi Protocol is developed by WAVIoT.
Technology
NB-Fi Protocol employs a Narrow Band technology that enables communication using the Industrial, Scientific and Medical
ISM radio band
The ISM radio bands are radio band, portions of the radio spectrum reserved internationally for ''industrial, scientific, and medical'' (ISM) purposes, excluding applications in telecommunications.
Examples of applications for the use of radio fr ...
(and in other parts of sub-GHz license-free spectrum as well).
NB-Fi devices could be manufactured using widespread electronic components which could easily be manufactured or purchased in every particular country. WAVIoT has developed an NB-Fi transceiver that encapsulates the NB-Fi protocol at a physical layer.
The NB-Fi transceiver supports 430–500 MHz and 860–925 MHz frequency bands at 50 to 25,600 bit/s data rates.
The network is based on one-hop
star topology
A star network is an implementation of a spoke–hub distribution paradigm in computer networks. In a star network, every host is connected to a central hub. In its simplest form, one central hub acts as a conduit to transmit messages. The ...
and requires a
SDR-technology base stations to operate. The signal can also be used to easily cover large areas and to reach underground objects.
Implementation
NB-Fi Protocol stack is currently implemented on:
* STM32L0x/STM32L4x Series microcontrollers (manufacturer:
STMicroelectronics
STMicroelectronics Naamloze vennootschap, NV (commonly referred to as ST or STMicro) is a European multinational corporation, multinational semiconductor contract manufacturing and design company. It is the largest of such companies in Europe. ...
) with NB-Fi transceiver (manufacturer: WAVIoT) or AX5043 transceiver (manufacturer:
ON Semiconductor
ON Semiconductor Corporation (stylized and doing business as onsemi) is an American semiconductor supplier company, based in Scottsdale, Arizona. Products include power and signal management, logic, discrete, and custom devices for automotive, c ...
);
* AX8052F143 with AX8052 MCU and AX5043 RF transceiver (manufacturer:
ON Semiconductor
ON Semiconductor Corporation (stylized and doing business as onsemi) is an American semiconductor supplier company, based in Scottsdale, Arizona. Products include power and signal management, logic, discrete, and custom devices for automotive, c ...
).
[{{Cite web, url=https://nb-fi.org/resources/data-store/helpful/rf-transceivers/, title=RF transceivers supporting the NB-Fi technology, website=nb-fi.org, language=en-US, access-date=2022-08-16]
References
Wireless networking