Effects of electromagnetic fields on the performance of molecular communications

Abstract

This thesis analyzes molecular communication (MC) systems’ performance under electromagnetic fields. The aim of the thesis is to model and study molecular behavior under electromagnetic fields (EMF). The thesis starts with the theoretical explanation of classic electromagnetism. The directional and thermal changes are the main effects of EMF on particles. The directional effects of EMF are studied with regard to electromagnetic forces. The applied electromagnetic forces are presented for different types of particles. The effect of EMF on magnetically susceptible particles is analyzed in particular. Furthermore, molecular movement is analyzed by considering four fundamental forces on diffusing molecules under EMF. The energy transfer between EMF and particles is studied to understand the thermal effects of EMF. AnMCscheme that transmits information with magnetically susceptible molecules is studied in the second part of the thesis. The molecular type and the configuration of EMF are studied to understand the effect of EMF on the diffusion rate. The effects of magnetic field gradient (MFG) and concentration gradient magnetic force (CGMF) are analyzed to model the change in the diffusion rate and concentration of magnetically susceptible molecules. The last part of the thesis focuses on molecular dynamics under EMF. The effect of thermal changes on the molecular reaction rate and binding kinetics is modeled with reaction-diffusion systems. The specific reaction rate constant is analyzed to determine the effect of temperature change caused by the EMF. The movement of molecules is modeled by Langevin’s diffusion model. The probability distribution functions of the molecule’s velocity and displacement are studied to understand and model the molecular behavior under EMF. Moreover, the mean-squared displacement is employed to analyze the diffusion type under EMF.