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Underwater acoustic modems are normally considered to offer low data-rates over distances of a few kilometers. This paper reports on open water performance of a high-frequency acoustic modem with demonstrated data rates of 380 kbps. The modem is simple and runs on commodity hardware using well understood signaling techniques.
Underwater acoustic links have low capacity because that operate at low frequencies. These low frequencies are used because they allow long range communication. Networks allow short range links to provide long range communication, eliminating the need for these long link ranges. Therefore high frequencies can be used for underwater acoustic communication. Such high-frequency underwater acoustic communication...
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