Channel Modeling for UWB Radio Signal Propagation in Implantable Body Sensor Networks
P. Thirumaraiselvan and S. Jayashri
Real Time collection and monitoring of physiological signals is getting a lot of attention nowadays due to the arising need of remote monitoring and treating of patients. This can be achieved with Body Area Networks (BAN), which should be formed with wearable or implanted wireless sensor devices. Before developing any wireless network, it is essential to characterize the wireless channel accurately. In case of BAN with implantable sensors, on site measurement is not practically feasible. Therefore, modeling the electromagnetic wave propagation inside the human body through numerical simulations and characterizing the wireless channel from the tissue properties would be a good solution. This paper proposes an approach using modified raytracing to predict the channel path loss characteristics of an Implantable Body Area Network in the Ultra Wide Band (UWB) frequency range. Assuming that the scattering objects are much larger than their wavelength, the electromagnetic waves are modeled as rays. As the human body is a heterogeneous and multilayer environment, the path loss at different depth inside the body is studied with a four layer human abdomen model.
Keywords: Channel Modeling, Pathloss, Raytracing, Implanted Body Area Network.
Volume: 5 | Issue: 1
Paper ID : IJPPAS105145
Issue Date: February , 2017Full Text