Study of 403.5 MHz Path Loss Models for Indoor Wireless Communications with Implanted Medical Devices on the Human Body

This paper contains simulated and measured data for 402-405 MHz radio propagation path loss in the consultation room for the allocated Medical Implant Communication System (MICS) band. The propagation models have been developed based on the number of partitions, concrete walls and objects between the transmitter and receiver. Unfurnished and furnished rooms were studied for indoor path loss and room penetration loss in a narrow band measurement. The received signals were measured, and effects from the indoor environment were evaluated to determine accurate impacts on the communication system. The fading in path loss for unfurnished and furnished indoor models with different polarizations was also considered. The path loss from the proposed models was illustrated and compared with the free space model. In this paper, the indoor wave propagation at the 403.5 MHz band was studied with both simulations and measurements to provide information that may aid the development of futuristic indoor communication for biotelemetry systems.