Direct-Detection PDM-OFDM RoF System for 60-GHz 2 x 2 MIMO Wireless Transmission Without Polarization Tracking

作者：Huang, Hou Tzu; Sun, Chung Shin^*; Lin, Chun Ting; Wei, Chia Chien; Zeng, Wei Siang; Chang, Hsi Yu; Shih, Boris; Ng'oma, Anthony

来源：Journal of Lightwave Technology, 2018, 36(17): 3739-3745.

DOI：10.1109/JLT.2018.2840102

• Millimeter wave communication
• multi-inputmulti-output (MIMO)
• optical fiber communication
• OFDM modulation
• polarization division multiplexing

This work experimentally demonstrates a 60-GHz direct-detection polarization division multiplexing and orthogonal frequency division multiplexing (PDM-OFDM) system that does not require polarization tracking. The frequency offset of un-modulated optical carriers and a novel training symbol design enable the estimation of optical polarization mixing and wireless multi-input-multi-output (MIMO) channels for signal demodulation. We also adopted an empty subcarrier to mediate noise enhancement. Simulation and experiment results both demonstrate the feasibility of this approach. With pre-compensation, we achieved a BER of 1 x 10(-3) under all polarization states over 10-km fiber and 3-m wireless MIMO transmission. The maximal allowable transmission data rate of up to 52 Gb at the worst case of states of polarization can he achieved.

• 出版日期2018-9-1
• 单位中山大学