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Tamburini F.,University of Padua | Mari E.,University of Padua | Parisi G.,Twistoff SRL Padua Italy | Spinello F.,University of Padua | And 6 more authors.
Radio Science | Year: 2015

In this paper we report the results from outdoor experiments showing that it is possible to increase the data transmission capacity using at least three coherent, orthogonal beams on the same frequency, 17.128GHz, each in a unique orbital angular momentum state. Each beam was encoded with the digital modulations used in present-day telecommunications. We achieved an error-free throughput of 3×11Mbit/s with four-Quadrature Amplitude Modulation over a 7MHz bandwidth over 100m and 150m long links. © 2015. American Geophysical Union. All Rights Reserved.

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