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Range extension and channel capacity increase in impulse-radio ultra-wideband communications

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7 Author(s)
Rodes, Roberto ; DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, DK-2800, Kgs. Lyngby, Denmark ; Yu, Xianbin ; Caballero, Antonio ; Jensen, Jesper Bevensee
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We theoretically analyze the channel capacity of a 5th-order Gaussian pulse-based ultra-wideband (UWB) system and experimentally demonstrate 2 Gbit/s UWB-over-fiber transmission systems incorporating wireless transmission. Both electrical and photonic UWB pulse generation methods are employed and its performance is compared. By utilizing optimum UWB pulse design and employing a digital signal processing (DSP) receiver, a bit-error-rate above the forward error correction (FEe) limit for 8 meters of wireless emission is obtained in our photonic generation UWB system. A noticeable increase in the channel capacity is achieved compared to previously reported results.

Published in:

Tsinghua Science and Technology  (Volume:15 ,  Issue: 2 )