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Performance optimization of RSOA based mm-wave radio-over-fibre access network

机译:基于rsoA的MM波无线电流接入网络性能优化

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In this paper, a Reflective Semiconductor Optical Amplifier based, Radio-over-Fibre access network configuration has been proposed to feed future millimeter-wave radio systems. The system architecture combines several approaches to overcome the challenges of millimeter-wave signal transmission. Reflective semiconductor optical amplifier modulator realizes a colorless and relatively cost-effective Remote Antenna Unit. The same optical carrier is used for both downlink and uplink. Optical single-sideband modulation is used at the downlink, which is robust against chromatic dispersion, but the complex realization of this modulation format is not possible at the Remote Antenna Unit. Optical intermediate frequency transmission is applied at the uplink direction, and the required local oscillator signal originates from the central station. The critical element is the reflective optical amplifier, as it compensates for the optical loss and works as an external intensity modulator. The operation of the reflective optical amplifier is modeled by multisection rate and wave equation-based description. The amplification and modulation behaviors of an available reflective optical amplifier are also measured. The experimental work validated the colorless operation and the quality of the modulation versus bias current and input optical power. Finally, system simulation was realizod. The uplink and downlink power budgets were balanced, and optimal values for the optical coupling rate and RSOA bias current have been selected.
机译:本文已经提出了一种基于反射半导体光学放大器的无线光纤接入网络配置,以馈送未来的毫米波无线电系统。系统架构结合了几种方法来克服毫米波信号传输的挑战。反射半导体光放大器调制器实现无色且相对成本效益的远程天线单元。相同的光学载波用于下行链路和上行链路。光学单边带调制在下行链路上使用,这对于针对色散鲁棒,但是在远程天线单元处不可能实现这种调制格式的复杂实现。光学中频传输在上行链路方向上施加,并且所需的本地振荡器信号源自中央站。临界元件是反射光放大器,因为它补偿了光学损耗并用作外部强度调制器。反射光放大器的操作由基于多部度速率和波浪方程的描述来建模。还测量了可用的反射光放大器的放大和调制行为。实验工作验证了无色操作和调制的质量与偏置电流和输入光功率。最后,系统仿真是Realizod。上行链路和下行链路功率预算是平衡的,并且已经选择了光学耦合速率和rsoA偏置电流的最佳值。

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