1. NarrowBand-Internet of Things (NB-IoT)https://www.gsma.com/iot/narrow-band-internet-of-things-nb-iot/
2. Long Term Evolution for Machines: LTE-Mhttps://www.gsma.com/iot/long-term-evolution-machine-type-communication-lte-mtc-cat-m1/
3. Dash7http://www.dash7-alliance.org/
4. SigFoxhttps://www.sigfox.com/en
5. LoRahttps://www.lora-alliance.org/