Novel full-duplex SSB WDM-RoF system with SLM tec nique for decreasing PAPR

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.