Analysis of transmission quality in technology for in-body to off-body MHz band near field coupling communication

We propose a technology for megahertz-band near field coupling communication using a communication path between a transceiver (TRX) on the surface of the human body (Wearable TRX) and a TRX embedded in the environment (Embedded TRX). We embedded a transceiver (In-body TRX) in a phantom that had the same electrical properties as the human body to apply this technology to the healthcare and medical fields, and we evaluated the quality of transmission by using packet error rate (PER) measurements between the In-body TRX and the Wearable TRX. We also assessed the coverage around the human body by measuring the PER between the Wearable and the Embedded TRXs. We found from the results that our megahertz-band near field coupling system could be applied to a single system of communication between In-body, Wearable, and Embedded TRXs.