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Performance analysis of multiple radio-access provision in a multicore-fibre optical fronthaul

机译:多芯光纤光学Fronthaul中多次无线电接入提供的性能分析

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摘要

In this work we report a comprehensive experimental study targeting the dimensioning of the next-generation multicore-fibre (MCF) optical fronthaul employing space-division multiplexing (SDM). This fronthaul is capable of simultaneous provision of multiple radio-access technologies (multi-RATs) with advanced multi-antenna MIMO capabilities per RAT. The different parameters required for fronthaul dimensioning are evaluated considering state-of-the-art 4G LTE-Advanced altogether other legacy wireless standards in operation nowadays. In particular, the modulation characteristics, the antenna quality requirements (in terms of EVM, phase error or rho) and the signal-to-noise ratio (SNR) thresholds are evaluated employing fully-standard cellular signals transmitted on a multicore fibre (MCF) fronthaul. The study includes bi-directional signal transmission and multi-antenna MIMO multiplexing. The MCF optical fronthaul is evaluated with a multiplexed transmission of 2G, 3G, 3.9G and 4G MIMO signals in radio-over-multicore-fibre (RoMCF) employing a commercially available four-core MCF. The SNR requirements at the transmitter antenna are obtained for each cellular signal considering GSM, EDGE, EGPRS2-A, cdma2000 1xEV-DO, UMTS HSPA+ and LTE-Advanced standards. LTE-Advanced singleantenna and two-antenna systems implementing 2 x 2 MIMO transmission can be accomplished with SNR levels over 25 dB. In the case of LTE-Advanced 4 x 4 MIMO multiplexing over four cores of MCF media, 32 dB SNR is needed to achieve almost four times provided bitrate per user.
机译:在这项工作中,我们报告了一个综合实验研究,旨在瞄准下一代多芯 - 光纤(MCF)光学Fronthul的尺寸,采用空间多路复用(SDM)。此Fronthaul能够同时提供多个无线电接入技术(多重大鼠),每个大鼠具有先进的多天线MIMO能力。考虑到最先进的4G LTE-Advanced在现在,考虑最先进的4G LTE-Advanced,评估Fronthaul Dimensioning所需的不同参数。特别地,在多核光纤(MCF)上的完全标准蜂窝信号评估调制特性,天线质量要求(在EVM,相位误差或RHO)和信噪比(SNR)阈值方面的阈值Fronthaul。该研究包括双向信号传输和多天线MIMO复用。使用商业上可获得的四核MCF的无线电过芯光纤(ROMCF)中的2G,3G,3.9G和4G MIMO信号的多路复用传输进行评估MCF光学FRONTHAUL。考虑GSM,EDGE,EGPRS2-A,CDMA2000 1XEV-DO,UMTS HSPA +和LTE-Advanced标准,获得发射器天线处的SNR要求。 LTE-Advanced SingleanTenna和实现2×2 MIMO传输的双天线系统可以通过25 dB的SNR水平完成。在LTE-Advanced 4 x 4 MIMO多路复用超过四个MCF介质内,需要32个DB SNR以实现每个用户的比特率几乎四次。

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