Adaptively Modulated OFDM RoF Signals at 60 GHz Over Long-Reach 100-km Transmission Systems Employing Phase Noise Suppression

作者：Wei, Chia Chien^*; Lin, Chun Ting; Chao, Ming I; Jiang, Wen Jr

来源：IEEE Photonics Technology Letters, 2012, 24(1): 49-51.

DOI：10.1109/LPT.2011.2172594

• Orthogonal frequency-division multiplexing (OFDM)
• phase noise (PN)
• radio-over-fiber (RoF)

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.

• 出版日期2012-1-1
• 单位中山大学