期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 39, 期 4, 页码 1081-1088出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2020.3029608
关键词
Optical fiber networks; Optical fibers; Optical fiber devices; 5G mobile communication; Optical polarization; 5G; mobile fronthaul; analog radio-over-fiber; beamforming; multiplexing; point-to-multipoint
资金
- H2020 5GPPP Phase II Project 5G-PHOS [761989]
- H2020 5GPPP Phase II Project 5G STEP-FWD [722429]
This research introduces a Fiber Wireless (FiWi) small cell architecture for 5G mobile fronthaul networks, utilizing IFoF transport scheme and mmWave phased array antennas to achieve efficient transport and coverage capabilities.
Towards relieving the bandwidth limitations in 5G mobile fronthaul networks, a Fiber Wireless (FiWi) small cell architecture is presented, relying on spectrally efficient analog transport on intermediate frequency over fiber (IFoF) and a millimeter wave (mmWave) phased array antenna (PAA) interfaced with a low-loss optical add/drop multiplexer (OADM) on Si3N4/SiO2 TriPleX platform with 5 dB fiber-to-fiber losses. Specifically, four 1 Gb/s FiWi links, each carrying a 250 MBd 16-QAM signal on 5.8 GHz IFoF, are wavelength division multiplexed (WDM) and transported across a 10 km Single Mode Fiber (SMF), before being demultiplexed into the constituent channels in the OADM device and subsequently wirelessly transmitted by the PAA over a 1 m-long V-band link with 90 degrees degree beamsteering capability. Featuring 4x 1Gb/s user rate with beamsteering to meet the respective 5G key performance indicator (KPI) for the peak user rate and an EVM within the acceptable 3GPP limit of 12.5%, the current work forms the first centralized FiWi point-to-multipoint small cell architecture with efficient transport scheme on IFoF and ubiquitous 360 degrees-degree coverage for emerging 5G mmWave networks.
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