LoRaWAN, Wi-Fi, ZigBee, and LP-WAN are wireless protocols used by IoT and IIoT devices. Low-Power Wide-Area Network (LPWAN) is a wireless technology specifically developed for Internet of Things (IoT) connectivity and machine-to-machine (M2M) communications. As Figure 1 illustrates, LPWAN enables a diverse range of applications. This article reviews the key advantages and limitations of LPWAN,…