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The radio over fiber network is a promising technique for providing broadband and high capacity wireless communication services. Due to the low attenuation of fiber, the radio frequency signals can be delivered from the central unit, namely CU, to the remote radio unit, namely RRU over long distance without using regenerating equipment. Meanwhile, the complexity and energy consumption are greatly reduced in the RRU. However, the radio over fiber system suffers from complex nonlinear impairments resulting from power amplifier, fiber, electrical and optical convertors, which should be mitigated. |
IEEE/ICACT20210147 Slide.03
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