A reliable modulation scheme for body coupled communication with galvanic coupling
M.B.A. Haarman (TU Delft - Electrical Engineering, Mathematics and Computer Science)
R Venkatesha Venkatesha Prasad – Mentor (TU Delft - Networked Systems)
Sujay Narayana – Graduation committee member (TU Delft - Networked Systems)
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Abstract
This thesis explores the integration of (Frequency Shift) Chirp Spread Spectrum Modulation (FSCSSM) in Body Coupled Communication (BCC) using the Galvanic Coupling (GC) method. The goal is to provide a method of private communication in a noisy channel for devices in and around the human body. Various parameters, including frequency, electrode dimensions, electrode inter-distances, and noise levels, are evaluated. Results demonstrate that FSCSSM allows reliable communication in highly noisy channels, achieving a data rate of 9.6 kbps at a Signal-to-Noise Ratio (SNR) of -9dB. The impact of body composition is highlighted, showing its significance in single-body communication. The communication in single-body is extended by evaluating body-to-body communication, enabled by touch, as well. This research provides valuable insights for designing robust BCC-FSCSSM systems.
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File under embargo until 19-01-2026