ISI-Aware Modeling and Achievable Rate Analysis of the Diffusion Channel

TL;DR

This paper introduces an ISI-aware modeling technique for molecular communication via diffusion in 3-D media, enabling accurate achievable rate analysis by accounting for channel memory and inter-symbol interference.

Contribution

It presents a novel ISI-aware system model for MCvD in 3-D environments and provides a proper achievable rate analysis considering channel memory effects.

Findings

Proposed an effective ISI-aware modeling technique.

Analyzed the achievable rate considering channel memory.

Enhanced understanding of molecular communication capacity.

Abstract

Analyzing the achievable rate of molecular communication via diffusion (MCvD) inherits intricacies due to its nature: MCvD channel has memory, and the heavy tail of the signal causes inter symbol interference (ISI). Therefore, using Shannon's channel capacity formulation for memoryless channel is not appropriate for the MCvD channel. Instead, a more general achievable rate formulation and system model must be considered to make this analysis accurately. In this letter, we propose an effective ISI-aware MCvD modeling technique in 3-D medium and properly analyze the achievable rate.