With the development of mobile communication technology, on the basis of the traditional “short-range” Internet of Things technology, many emerging “long-distance” Internet of Things technologies have emerged. Among these Internet of Things technologies, the most we introduce are LoRa and NB- IoT, in fact, eMTC is also widely used. NB-IoT, LoRa, Sigfox, and eMTC all belong to Low Power Wide … Continua a leggere→