High-Efficiency Target Detection Scheme through Relay Nodes in Chemotactic-Based Molecular Communication

Abstract

Nano-network models based on chemotaxis are com-monly designed for the application of target detection or drug delivery. However, due to the random diffusion of molecules, chemotactic substances can't rapidly reach long-range nanoma-chines, which affects effectiveness of the detection process. In this paper, we propose a nano-network model and a corresponding target detection scheme using relay nodes that can release attractants to expand the impact range of chemotactic substances and improve the chemotactic efficiency. We then establish the mathematical model for this process. Finally, simulation results show the proposed scheme for the new model is superior to general schemes.