The effect of RBCs concentration in blood on the wireless communication in Nano-networks in the THz band

Publication date: Available online 2 November 2018Source: Nano Communication NetworksAuthor(s): Ahmed Salem, Mohamed Mostafa A. AzimAbstractIn-vivo wireless nano-sensor networks have been proven to be a promising technology that will enable a variety of applications ranging from health monitoring and diagnosis to drug delivery systems. Miniaturization of the components of nano-devices enforced the electromagnetic communication among nano-devices to be in the THz band. Unfortunately, in-vivo medium contains bio-materials and fluids, e.g., blood, that contaminate the THz signal, which highlighted the urgency behind investigating the blood’s spreading and absorption spectrum in the THz band. In this paper, we present an electromagnetic model for blood with the flexibility of specifying the volume fraction and the particle shape of its Red Blood Cells (RBCs) by using Effective Medium Theory (EMT), we investigate the effect of the volume fraction of its RBCs (also known as hematocrit) on its characteristics and on the amount of contamination that the wireless signal will suffer while being transmitted. In particular, we analyze the blood as a medium for wireless signals in the THz band under different bandwidths and parameters including, path loss, molecular noise, SNR and information rate. The main findings of this paper concludes that as the RBCs concentration increase, the path loss and molecular noise decrease. The signal in blood with different RBCs concentrations ranging f...

Source: Nano Communication Networks - November 4, 2018 Category: Nanotechnology Source Type: research