Wireless IoT connectivity (WIoT = Wireless Internet of Things) makes it possible for even the smallest devices, smart objects, wireless sensors or Wireless Sensor Networks (WSN) to communicate with each other via the Internet. Basically, WIoT technology can be divided into three groups:
Group one of wireless IoT technology is formed by cellular technology. Exclusively operated by telcos, this technology exclusively involves licensed frequency bands that are used in smartphones.
Low-power wide-area networks (LPWA) belong to the second group of WIoT applications. The collective term bundles various types of technology. They can be divided into licensed frequencies and non-licensed frequency bands. Short-range networks, building networks or personal area networks (WPAN) represent group three of wireless IOT connectivity. Wifi, Bluetooth and Zigbee are the most commonly used wireless networks. In addition, there are many other wireless network options that are used in smart home or industrial applications.
Whether short-range or long-range networks, the following factors play an essential role in the efficient use of WIoT technology: In addition to good battery runtimes, low hardware and operating costs, a high connection density of the WIoT devices is also required. The range and bandwidth of the entities in turn depend on the type of deployment as WPAN or WAN.