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. 2012 Sep;59(9):2051-3.
doi: 10.1109/TUFFC.2012.2426.

High-data-rate ultrasonic through-metal communication

Kevin Wanuga, Magda Bielinski, Richard Primerano, Moshe Kam, Kapil R Dandekar

High-data-rate ultrasonic through-metal communication

Kevin Wanuga et al. IEEE Trans Ultrason Ferroelectr Freq Control. 2012 Sep.

Abstract

A link-adaptive frequency division multiplexing (OFDM) ultrasonic physical layer is proposed for high-data-rate communications through metal walls. The ultrasonic link allows for communication without physical penetration of the metal barrier. Link-adaptive OFDM mitigates the severe frequency- selective fading of the ultrasonic channel and greatly improves throughput over impulse or narrowband communication systems. Throughput improvements of 300% are demonstrated over current narrowband low-frequency techniques, and show improved spectral efficiency over high-frequency techniques found in the literature.

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