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Demonstration of a spatially multiplexed multicore fibre-based next-generation radio-access cellular network

机译:基于空间复用多核光纤的下一代无线接入蜂窝网络的演示

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This paper proposes and demonstrates a next-generation radio-access network employing multicore fibre in the optical wireless fronthaul and mode-division multiplexing in the backhaul to overcome the capacity limitation of single-mode fibre systems. The proposed optical fronthaul is based on radio-over-fibre (RoF) transmission on multicore fibre. The combination of RoF and multicore fibre permits cost- and energy-efficient support of MIMO wireless present in actual 4G cellular systems, which is a key requirement for next-generation 5G radio technology. The performance of RoF transmission in a 4-core fibre using LTE-Advanced radio signals implementing 2×2 MIMO coding is reported in this paper altogether with the crosstalk performance with different bending radius and random twist. The proposed backhaul optical network is based on modal-division multiplexing over a single wavelength. Few-mode transmission is employed in order to increase the transmission capacity of the backhaul network. Few-mode transmission performance is analysed considering the propagation of two LP mode groups taking into account both modal and chromatic dispersion transmission impairments in the optical backhaul.
机译:本文提出并演示了一种下一代无线接入网络,该网络在光无线前传中采用多核光纤,而在回传中采用模分复用,以克服单模光纤系统的容量限制。提议的光学前传基于多芯光纤上的光纤无线电(RoF)传输。 RoF和多核光纤的组合允许对实际4G蜂窝系统中存在的MIMO无线提供经济高效的能源支持,这是下一代5G无线电技术的关键要求。本文报道了使用实现2×2 MIMO编码的LTE-Advanced无线电信号在4芯光纤中进行RoF传输的性能,以及不同弯曲半径和随机扭曲的串扰性能。提出的回程光网络基于单个波长上的模分复用。为了增加回程网络的传输容量,采用少量模式传输。考虑到两个LP模式组的传播,分析了很少的模式传输性能,同时考虑了光回程中的模态和色散传输损害。

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