Abstract
A link-adaptive frequency division multiplexing (OFDM) ultrasonic physical layer is proposed for high-datarate 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.
Original language | English (US) |
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Article number | 6306028 |
Pages (from-to) | 2051-2053 |
Number of pages | 3 |
Journal | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control |
Volume | 59 |
Issue number | 9 |
DOIs | |
State | Published - 2012 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Instrumentation
- Acoustics and Ultrasonics
- Electrical and Electronic Engineering