Noise Reduction Method for Intra-Body Communication by Using Compensation Electrode

A noise reduction method using a compensation electrode and a capacitance in intra-body communication (IBC) is described. The problem with IBC is the influence of environmental noise on communication performance. A radiated noise through the human body is a significant problem. We propose a noise reduction method using a compensation electrode connected to a floor cold electrode with a variable capacitance. The radiated noise through the human body is canceled by the noise to the cold electrode by changing the capacitance. An experiment and equivalent circuit simulation were performed for validation and it was confirmed that the noise reduction method is effective for the IBC system.