The most popular street light control communication technology is the RF mesh network. Generally working on unlicensed frequencies, this is a self-healing (active nodes in a mesh can compensate when a single node fails, in turn ensuring system uptime), multi-hop network suitable for various urban, semi-urban and rural areas.
RF star is also an effective communication technology for street light controls providing point to point communication between the base station (gateway) and nodes. The Telematics base station can handle up to 50,000 end devices (nodes). Usually one single base station can cover an entire mid-sized city.
LoRaWAN is another technology gaining popularity. It is an open protocol standard driven by the LoRa Alliance. A proven and popular technology in the Low Power WAN (LPWAN) arena, LoRaWAN has been designed from the ground up to optimise LPWANs for IoT applications that require long range, low power, high capacity and low implementation cost. LoRaWAN is based on chirp spread spectrum (CSS), an advanced spread spectrum modulation technology which has been used in military and space communication for decades because of its long range and robustness to interference.