60-GHz RoF System With Low PAPR 16QAM-OFDM Downlink Using PTS Segmentation

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 interlea
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 25, NO. 9, MAY 1, 2013 855




60-GHz RoF System With Low PAPR
16QAM-OFDM Downlink Using PTS Segmentation
Yufeng Shao, Yanjin Wang, and Nan Chi




Abstract ― A novel 60-GHz radio over ber (RoF) system
1
is proposed and experimentally demonstrated with 16QAM-
OFDM downlink signals generated by three kinds of partial
2
transmit sequence (PTS) segmentation methods. The 5-Gb/s
16QAM-OFDM s