Autotuning of Resonant Magnetic Induction Communications

The paper presents a novel autotuning scheme to ensure optimal energy transfer using Magnetic Resonance Communication (MRC) in challenging environments such as small networks of implanted intrabody nodes to manage chronic diseases. Our approach employs a control mechanism for capacitive tuning to adaptively maintain resonance and optimal energy transfer. This method compensates for drifts in circuit parameters and external perturbations, ensuring efficient and reliable communication in intrabody networks. Experimental results demonstrate the effectiveness of our autotuning scheme in various simulated scenarios, including step and ramp perturbations in circuit parameters. We show that our approach can significantly improve the efficiency of MRC systems in the face of both the short-term variations and longer term drifts.