研究目的
To demonstrate an end-to-end Fiber Wireless A-RoF/IFoF fronthaul link using a 32-element 60GHz phased array antenna and characterize its linearity for 5G mmWave networks.
研究成果
The experiment successfully demonstrated a 0.4Gb/s 16-QAM or a 0.6Gb/s QPSK end-to-end data transmission across 1km fiber and 1m V-band link, meeting the uplink user-rate KPI requirements in hotspot and Fixed Wireless Access scenario of 5G mmWave networks.
研究不足
The main source of degradation was the wireless link rather than the LiNbO3 modulator. The experiment was limited to a 1km fiber and 1m V-band link.
1：Experimental Design and Method Selection:
The experiment involved the use of a 32-element 60GHz phased array antenna for an end-to-end Fiber Wireless A-RoF/IFoF fronthaul link. Two tone measurements were used to characterize the linearity of the link.
2：Sample Selection and Data Sources:
The data traffic was generated by a Keysight Arbitrary Waveform Generators (AWG) M8190A and fed to the transmitter in a differential data input configuration.
3：List of Experimental Equipment and Materials:
The setup included a portable V-band transmitter, a 32-element phased array receiving antenna, a Keysight Signal Analyzer (SA), a zero chirp LiNbO3 Mach-Zehnder Modulator (MZM), and a DFB Laser Source (LS).
4：Experimental Procedures and Operational Workflow:
The experiment involved transmitting a 100Mbd QPSK, 8-PSK and 16-QAM signal across 1km fiber and 1m V-band link, with and without beamsteering at 15o degrees.
5：Data Analysis Methods:
The performance of the wireless and the FiWi link were compared using EVM values.
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