Development of a New Wireless Communication Standard for Local Needs

Modern local area networks of the Wi-Fi standard have many advantages: high communication speed, mobility and a large number of simultaneously connected devices. Nevertheless, there is a significant drawback of this standard related to the small communication radius, which significantly limits the scope of this technology. First of all, this concerns the connection of Internet of Things (IoT) devices. For these purposes, it is necessary to develop separate standards, for example: LPWAN, NB-IoT, LoRA and others. This article substantiates the possibility of using the DECT standard as a universal standard for the IoT, digital telephony, etc. The paper formulates the basic requirements for a wireless network for local needs, such as an extended communication radius, an unfilled frequency spectrum, and energy-saving capabilities. It is shown that DECT satisfies all conditions well. The fundamental possibility of encapsulating MQTT messages in SIP messages is demonstrated. A new communication scheme has been proposed that allows for the transmission of MQTT control messages to an IoT sensor. It describes how the delivery of IoT control messages based on subscriber numbers in SIP can be implemented. The proposed communication scheme allows simultaneous provision of two communication services: radiotelephony and last mile for wireless connection of IoT devices. The application of the proposed solution for the creation of remote laboratories for the research and study of IoT networks and DECT technology is described.