Low Power Digital Communication in Implantable Devices Using Volume Conduction of Biological Tissues

This work investigates the data communication problem of implantable devices using fundamental theories in communications. We utilize the volume conduction property of biological tissues to establish a digital communications link. Data obtained through animal experiments are used to analyze the time and frequency response of the volume conduction channel as well as to characterize the biological signals and noises present in the system. A low power bandwidth efficient channel-coded modulation scheme is proposed to conserve battery power and reduce the health risks associated

[1]  R. Stuart Mackay.  Bio-Medical Telemetry: Sensing and Transmitting Biological Information from Animals and Man , 1968 .

[2]  Y. Rahmat-Samii,et al.  Implanted antennas inside a human body: simulations, designs, and characterizations , 2004, IEEE Transactions on Microwave Theory and Techniques.

[3]  Robert G. Gallager,et al.  Low-density parity-check codes , 1962, IRE Trans. Inf. Theory.

[4]  Ii Leon W. Couch.  Digital and analog communication systems , 1983 .

[5]  Wei Liang,et al.  Application of the reciprocity theorem to volume conduction based data communication systems between implantable devices and computers , 2003, Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439).

[6]  Mingui Sun,et al.  Optimization of an implantable volume conduction antenna , 2004, The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[7]  Ivanov Ip.  Pulse ratio modulation in magnetic recorders , 1971 .

[8]  Donald W. Ferrel,et al.  A Multichannel Ultrasonic Marine Biotelemetry System for Monitoring Marine Animal Behavior at Sea. , 1973 .