Internet of Things (IoT) shall be imperative in incorporating different heterogeneous end systems including everything from smart homes to the industrial Internet of Things with smart agriculture, smart cities, and the smart grid. Apart from the sophisticated communication protocols, the choice of an antenna system will be a critical component of all these node end smart devices. Choosing the right antenna for an application imposes a key design challenge. As IoT modules continue to shrink incorporating more wireless technologies, making space for antennas is becoming an increasingly significant challenge. Thus, IoT-module antenna design faces the restrictions of ever-shrinking footprints while maintaining reasonable antenna performance under severe conditions such as noise, fading, and the need for efficiency. Enhanced techniques for multiplexing, interference mitigation, scheduling, and radio resource allocation work alongside the antenna design for the realization of efficient antenna systems for IoT.

The explosive growth of the Internet of Things and smart industrial applications creates many scientific and engineering challenges that are the main intentions of this special issue for ingenious research efforts for the development of efficient, cost-effective, scalable, and reliable antenna systems for IoT. The antenna designs for UWB and RFID tags in IoT enabled environment, MIMO antenna systems, transmission techniques of massive MIMO systems, and position tolerance design method and effects of randomness in element