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

In this letter, 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.

Automated summary

In this paper, a novel inter-symbol interference (ISI) mitigation scheme for molecular communication via diffusion (MCvD) systems with the optimal detection interval is proposed. The scheme exploits the discarded duration to relieve ISI in the target system. An objective function is formulated to quantify the impact of the discarded time on bit error rate (BER) performance. Additionally, an optimally reusable interval within the discarded duration is derived in closed form, applicable to both absorbing and passive receivers. Numerical results demonstrate significant BER improvements for the considered MCvD system using the derived reusable duration.