Modeling Channel Dynamics in Molecular Communication Systems

Abstract

Molecular Communication (MC) is a field that merges concepts from biology, chemistry, and information theory to enable information transfer using molecular signals. This work introduces a mathematical model for MC systems to deepen the understanding of key principles and improve nanoscale system design and optimization. The model addresses essential aspects, including molecular diffusion, advection, degradation, and channel impulse response in bounded environments. It investigates the effects of advection, where fluid flow influences concentration gradients and degradation processes, which impact signal robustness and duration. Both bounded and unbounded environments are analyzed to understand the dynamics of molecular concentration, with a focus on molecular confinement and channel conditions.  Additionally, the study derives a channel impulse response equation essential for evaluating system performance. Simulation results offer insights into molecular concentration behaviors, advancing the understanding of MC systems.