In-vivo characterisation and numerical analysis of the THz radio channel for nanoscale body-centric wireless networks

Analytical investigations are presented to calculate the path loss and absorption coefficients of human tissues such as blood and fat at THz frequencies as an essential part of understanding nanoscale networks. From the results, it can be seen that with the rise of the distance and frequency, the path loss increases slightly as expected. For the blood, the path loss at 1mm is around 100dB while for the fat the corresponding distance to the path loss of 100dB is approximately 2mm, leading to the conclusion that at very short distances, in the order of millimeters, the path loss is not significantly high to consider communication between nano-devices.