Bridging Nanomachines: Bidirectional Channel in a Bio-inspired System

In this paper, we present a bio-inspired bidirectional molecular communication model for nanomachines, specifically \(S_T\) and \(S_R\) . Our model integrates dynamic transmission and reception modes, akin to the natural systems it draws inspiration from. The communication channel is designed to mimic interconnected biological locations, mirroring the pathways of signalling molecules, inspired by calcium signalling and guided by principles from the Abelian sandpile model (ASM). Operating in discrete time slots, each nanomachine synchronizes with its local clock, alternating between transmitting and receiving modes. Minimum molecular concentrations are received in each time slot, and molecules are transmitted probabilistically, with failure considered for enhanced reliability. Channel nodes are responsive to molecular concentrations above a threshold. Validation is performed using the PRISM verification tool, confirming the model’s robustness and efficiency. Numerical simulations explore various scenarios, including diverse molecular concentrations and varying nanomachine distances, illustrating the model’s capacity to maintain bidirectional communication under dynamic conditions.