Novel full-duplex SSB WDM-RoF system with SLM technique for decreasing PAPR
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摘要:
A novel full-duplex single-sideband (SSB) wavelength division multiplexing radio over fiber (WDM-RoF) system with selected mapping (SLM) technique for decreasing peak-to-average power ratio (PAPR) is proposed in this paper.At the central office (CO),the generated SSB signal carrying 10 Gbit/s 16-ary quadrature amplitude modulation orthogonal frequency division multiplexing (16QAM-OFDM) downstream signal with SLM technique is sent to the base station,and 60 GHz SSB optical signal carrying 10 Gbit/s 16QAM-OFDM upstream signal is sent back to CO utilizing the wavelength-reuse technology.Simulation results show the proposed method for PAPR reduction can effectively improve the sensitivity of receiver,and the power penalty of the 16QAM-OFDM downlink (uplink) signal is about 2 dB (3 dB) at BER of 1 × 10-3 after 42 km standard single-mode fiber (SSMF) transmission.