Title: Adaptively Modulated OFDM RoF Signals at 60 GHz Over Long-Reach 100-km Transmission Systems Employing Phase Noise Suppression
Authors: Wei, Chia-Chien
Lin, Chun-Ting
Chao, Ming-I
Jiang, Wen-Jr
Institute of Photonic System
Keywords: Orthogonal frequency-division multiplexing (OFDM);phase noise (PN);radio-over-fiber (RoF)
Issue Date: 1-Jan-2012
Abstract: We experimentally demonstrated the transmission performance of orthogonal frequency-division-multiplexing (OFDM) signals in a 60-GHz radio-over-fiber system over up to 100-km standard single-mode fiber employing an adaptive bit-loading algorithm. Considering dispersion-induced phase noise, the maximum capacities after different fiber distances are investigated with and without a phase noise suppression (PNS) algorithm for the first time. When a distributed-feedback (DFB) laser with the linewidth of 1.3 similar to 4.1 MHz is modulated to carry the radio signals, the PN will result in more than 21.5% capacity decrease after 100-km fiber and 3-m wireless link, and the PNS algorithm which needs no bandwidth-consuming pilot tones can accomplish more than 15.3% capacity increase.
URI: http://dx.doi.org/10.1109/LPT.2011.2172594
ISSN: 1041-1135
DOI: 10.1109/LPT.2011.2172594
Volume: 24
Issue: 1
Begin Page: 49
End Page: 51
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