Performance Evaluation of Path Loss Models for Internet of Wearable Things

The Internet of Wearable Things (IoWT) is a promising technology for Wireless Body Area Networks (WBAN). In fact, WBAN channel characterization has become a major challenge, especially for real-time monitoring and remote control of vital signs and physiological data of patients in medical applications. In this paper, we present a performance evaluation of the IEEE 802.15.6 CM3A model based on our mathematical voxel-human body channel model at 2.4 GHz for various distances between the coordinator and the on-body wearable sensor antennas. Theoretical studies and simulation results are presented in detail. The proposed channel modeling, based on 3D voxel-body models, is in good agreement with the IEEE 802.15.6 CM3A model, and a comparison of path loss models performances is also presented. All numerical simulation results are performed using CST microwave studio.