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Combined Analysis of OFDM-UWB Transmission in Hybrid Wireless-Optical Access Networks

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4 Author(s)
Morant, M. ; Wireless-Photonics Integration Group, Univ. Politec. de Valencia, Valencia, Spain ; Perez, J. ; Llorente, R. ; Marti, J.

The hybrid wireless-optical transmission of ultra-wideband signals employing orthogonal frequency-division multiplexing modulation (OFDM) ultra-wideband (UWB) as defined in the ECMA-368 standard is experimentally analyzed in this letter. The OFDM-UWB signals provide 400 Mb/s per user at optical distances from 5 to 50 km on standard single-mode fiber (SSMF). The analysis includes the wireless radiation from 0 to 3 m after optical transmission. The results indicate a maximum error-vector-magnitude degradation of 2.5 dB measured at 1.5-m radio after 50-km SSMF optical transmission for the first two UWB channels. This degradation translates to 1-m maximum wireless-reach penalty.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 19 )