Low-power, high data rate transceiver system for implantable prostheses

Authors:
A. R. Kahn;E. Y. Chow;O. Abdel-Latief;P. P. Irazoqui
Affiliations:
Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN;Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN;Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN;Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN
Venue:
International Journal of Telemedicine and Applications
Year:
2010

Citing 2
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Abstract

Wireless telemetry is crucial for long-term implantable neural recording systems. RF-encoded neurological signals often require high data-rates to transmit information frommultiple electrodes with a sufficient sampling frequency and resolution. In this work, we quantify the effects of interferers and tissue attenuation on a wireless link for optimal design of future systems. The wireless link consists of an external receiver capable of demodulating FSK/OOK transmission at speeds up to 8 Mbps, with ≤1e-5 bit-error rate (BER) without error correction, and a fully implanted transmitter consuming about 1.05mW. The external receiver is tested with the transmitter in vivo to show demodulation efficacy of the transcutaneous link at high data-rates. Transmitter/Receiver link BER is quantified in typical and controlled RF environments for ex vivo and in vivo performance.