Multicore fiber (MCF) systems have been proposed for high capacity optical transmission applications ranging from the access network to long haul. In this paper we critically review the application of MCF-based systems in optical fronthaul technology with the simultaneous radio-over-fiber (RoF) transmission of 3GPP LTE-Advanced signals in downlink and uplink directions. The experimental study evaluates the quality of the received signals in terms of error vector magnitude (EVM) of the LTE-Advanced signal and of each channel frame according to the 3GPP wireless standard. The suitability of the 3GPP MIMO processing algorithms is also investigated experimentally evaluating two-antenna and four-antenna system configuration and compared with single-antenna (SISO) transmission in a 4-core MCF.
Roberto Llorente and Maria Morant, "Bidirectional MIMO and SISO 3GPP LTE-advanced fronthaul architectures based on multicore fiber," Proc. SPIE 10128, Broadband Access Communication Technologies XI, 101280D (Presented at SPIE OPTO: February 01, 2017; Published: 28 January 2017); https://doi.org/10.1117/12.2252198.
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