Low Complexity First: Duration-Centric ISI Mitigation in Molecular Communication via Diffusion

TL;DR

This paper introduces a novel ISI mitigation method for molecular communication via diffusion that optimally utilizes the discarded symbol duration to significantly improve bit error rate performance.

Contribution

It proposes a duration-centric ISI mitigation scheme with a closed-form reusable interval applicable to different receiver types, enhancing molecular communication reliability.

Findings

Significant BER improvements achieved with the proposed reusable duration.

Optimal detection interval reduces ISI effectively in MCvD systems.

Numerical results validate the theoretical analysis and performance gains.

Abstract

In this paper, we propose a novel inter-symbol interference (ISI) mitigation scheme for molecular communication via diffusion (MCvD) systems with the optimal detection interval. Its rationale is to exploit the discarded duration (i.e., the symbol duration outside this optimal interval) to relieve ISI in the target system. Following this idea, we formulate an objective function to quantify the impact of the discarded time on bit error rate (BER) performance. Besides, an optimally reusable interval within the discarded duration is derived in closed form, which applies to both the absorbing and passive receivers. Finally, numerical results validate our analysis and show that for the considered MCvD system, significant BER improvements can be achieved by using the derived reusable duration.