Abstract
This article proposes and experimentally demonstrates a radio-over-fiber system employing single-sideband single-carrier (SSB-SC) modulation at 60 GHz. SSB-SC modulation has a lower peak-to-average-power ratio than orthogonal frequency division multiplex (OFDM) modulation; therefore, the SSB-SC signals provide superior nonlinear tolerance, compared to OFDM signals. Moreover, multiple-input multiple-output (MIMO) technology was used extensively to enhance spectral efficiency. A least-mean-square-based equalizer was implemented, including MIMO channel estimation, frequency response equalization, and I/Q imbalance compensation to recover the MIMO signals. Thus, using MIMO technology and 64-QAM SSB-SC signals, we achieved the highest data rate of 84 Gbps with spectral efficiency using the 7-GHz license-free band at 60 GHz.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Chun-Hung Ho, Chun-Ting Lin, Yu-Hsuan Cheng, Hou-Tzu Huang, Chia-Chien Wei, and Sien Chi
Opt. Express 22(4) 3911-3917 (2014)
Chun-Ting Lin, Anthony Ng’oma, Wei-Yuan Lee, Chia-Chien Wei, Chih-Yun Wang, Tsung-Hung Lu, Jyehong Chen, Wen-Jr Jiang, and Chun-Hung Ho
Opt. Express 20(1) 562-567 (2012)
Po-Tsung Shih, Chun-Ting Lin, Wen-Jr Jiang, Yu-Hung Chen, Jason (Jyehong) Chen, and Sien Chi
Opt. Express 17(22) 19501-19508 (2009)