A Vertical Channel Model of Molecular Communication based on Alcohol Molecules

TL;DR

This paper introduces a vertical molecular communication channel model based on diffusion and gravity, validated through experiments, to better understand nano-machine communication in biological and environmental contexts.

Contribution

It proposes the first vertical channel model for molecular communication considering gravity, and verifies it with experimental data and parameter optimization.

Findings

The model accounts for gravity and diffusion effects.

Experimental data aligns with the theoretical model.

Parameter optimization improves model accuracy.

Abstract

The study of Molecular Communication(MC) is more and more prevalence, and channel model of MC plays an important role in the MC System. Since different propagation environment and modulation techniques produce different channel model, most of the research about MC are in horizontal direction,but in nature the communications between nano machines are in short range and some of the information transportation are in the vertical direction, such as transpiration of plants, biological pump in ocean, and blood transportation from heart to brain. Therefore, this paper we propose a vertical channel model which nano-machines communicate with each other in the vertical direction based on pure diffusion. We first propose a vertical molecular communication model, we mainly considered the gravity as the factor, though the channel model is also affected by other main factors, such as the flow of the medium, the distance between the transmitter and the receiver, the delay or sensitivity of the transmitter and the receiver. Secondly, we set up a test-bed for this vertical channel model, in order to verify the difference between the theory result and the experiment data. At last, we use the data we get from the experiment and the non-linear least squares method to get the parameters to make our channel model more accurate.