Sigfox, Qowisio, LoRa by Objenious, Matooma, RPMA by Ingenu. These IoT networks are engaged in a tech battle. With the IoT sector expected to reach 21 billion connected objects in 2020 according to IT research firm Gartner, the need for efficient connectivity is huge. But between narrow-band, spread spectrum and mobile networks, what’s the best choice? It depends on use. This infographic contains some answers.
*Low-Power Wide Area (LPWA) is also called Machine-to-Machine connectivity, Wireless Sensor Networking or Internet-of-Things. It offers low-cost, low-power, battery-efficient connectivity.
*Narrow-band IoT (NB-IoT) is an IoT-specific LPWA technology for sending short messages using little power.
*Ultra narrowband (UNB) technology is a long-distance (20 to 40 km) communication protocol transmitting over a very narrow spectrum channel. Little power is needed to transmit at a low air data rate.The object must transmit no more than 10% of the time.
*Random Phase Multiple Access (RPMA) is an LPWA technology exclusively for wireless M2M communication in the 2.4 GHz band. It uses direct sequence spread spectrum (DSSS) which modulates the carrier and spreads the transmission across a broader spectrum, with no transmission duration limit.
*LoRa (Long Range) is an LPWA network specification using spread spectrum technology. Unlike DSSS, it uses an unmodulated carrier. The communications between the device and the gateway are spread across various frequencies, enabling differing data rates. Range is 50 km, though airborne tests of 140 km have been successful.
Bouygues is a founding member of the LoRa alliance created a year and a half ago and consisting of 400 industrial companies and 30 telecommunications firms worldwide. The Bouygues subsidiary, Objenious, is responsible for deployment of the network in France among other companies such as Orange.