@inproceedings{42b9d13f967e4217aaf922749fc7d360,
title = "Ultrasonic Backscatter Communication for Brain Implants: Mathematical Model, Simulation, and Measurement",
abstract = "In this paper, we present a mathematical and simulational model of an ultrasound backscattering communication link for 1 mm3 mm-sized brain implants. The mathematical model and different simulations are validated by measurement. Furthermore, using a piezoelectric crystal and an ultrasound transducer in a water tank setup, two different ultrasound reflection-based modulation methods are presented and measurement results are discussed. We compare the model, simulation, and measurement to gain a better understanding of the channel response. The results shows the possibility of achieving a bandwidth of up to 140 kb/s using binary modulation and 280 kb/s with 4-level ASK.",
keywords = "Amplitude shift keying, implantable devices, ultrasound, backscatter, load shift keying, reflections",
author = "Christensen, {Magnus N.} and Milad Zamani and Amin Rashidi and Farshad Moradi",
year = "2021",
doi = "10.1109/BioCAS49922.2021.9644968",
language = "English",
isbn = "978-1-7281-7205-7",
series = "BioCAS 2021 - IEEE Biomedical Circuits and Systems Conference, Proceedings",
publisher = "IEEE",
pages = "1--5",
booktitle = "BioCAS 2021 - IEEE Biomedical Circuits and Systems Conference, Proceedings",
address = "United States",
note = "2021 IEEE Biomedical Circuits and Systems Conference (BioCAS) ; Conference date: 06-10-2021 Through 09-10-2021",
}