Compact MIMO Antennas for Localization and PHY layer Security in Wrist Worn IoT Devices

Abstract

On-body IoT technologies, like wrist-worn devices, are becoming a key enabler of many cutting-edge applications such as connected healthcare systems (e.g, patient monitoring, in-hospital localization, sports fitness, and tracking). However, miniaturization, improved antenna efficiency, advanced beamforming performance, and low energy consumption are still critical design requirements in such systems. Therefore, in wearable IoT scenarios, implementing traditional security methods and localization using classical antenna arrays are challenging. This research advances the above limitations by exploiting novel multimode MIMO antennas to enhance security aspects of wearable devices via emerging physical layer security methods and their capabilities to enable angle of arrival AoA-based localization.