Title :
60-GHz RoF System With Low PAPR 16QAM-OFDM Downlink Using PTS Segmentation
Author :
Yufeng Shao ; Yanjin Wang ; Nan Chi
Author_Institution :
Dept. of Commun. Sci. & Eng., State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
A novel 60-GHz radio over fiber (RoF) system is proposed and experimentally demonstrated with 16QAM-OFDM downlink signals generated by three kinds of partial transmit sequence (PTS) segmentation methods. The 5-Gb/s 16QAM-OFDM signals are transmitted over 42 km SMF-28 and a 0.4-m wireless channel. The experimental results demonstrate that all of the PTS segmentation methods here can effectively reduce the peak-to-average power ratio (PAPR). Meanwhile, the computational complexity comparison of three kinds of PTS segmentation methods is accomplished. The results show that the interleaved segmentation provides a tradeoff between PAPR and computational complexity. Moreover, the receiver sensitivity is effectively enhanced using this method. Therefore, the interleaved segmentation is suitable for 60-GHz RoF system application.
Keywords :
OFDM modulation; optical links; optical receivers; quadrature amplitude modulation; radio-over-fibre; wireless channels; PTS segmentation method; ROF system; SMF-28; bit rate 5 Gbit/s; distance 42 km; frequency 60 GHz; interleaved segmentation; low PAPR 16QAM-OFDM downlink signals; optical fiber communication; orthogonal frequency division multiplexing; partial transmit sequence method; peak-to-average power ratio; radio-over-fiber system; receiver sensitivity; size 0.4 m; wireless channel; Computational complexity; Optical fiber amplifiers; Partial transmit sequences; Peak to average power ratio; Receivers; Sensitivity; Optical fiber communication; partial transmit sequence; peak-to-average power ratio; radio over fiber;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2252425
