Towards efficient and reconfigurable next-generation optical fronthaul networks for massive MIMO
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Publication Date
2022-03-04Journal Title
Metro and Data Center Optical Networks and Short-Reach Links V
Conference Name
Metro and Data Center Optical Networks and Short-Reach Links V
Publisher
SPIE
Pages
29
Type
Conference Object
This Version
AM
Metadata
Show full item recordCitation
Li, T., Xia, J., Gu, J., Cheng, Q., Crisp, M., & Penty, R. (2022). Towards efficient and reconfigurable next-generation optical fronthaul networks for massive MIMO. Metro and Data Center Optical Networks and Short-Reach Links V, 29. https://doi.org/10.1117/12.2607304
Abstract
This paper summaries our recent research on digital radio over fibre (DRoF) based optical fronthaul links and
experimentally demonstrates a novel last-mile wireless coverage system incorporating data compression, time-division
multiplexing (TDM) based packetization, and wavelength division multiplexing (WDM) based optical transmission.
Compression reduces the fronthaul data rate required per service by a factor of 3 when compared with the common public
radio interface (CPRI) standard, enabling efficient radio resource distribution over optical fibre infrastructure. The new
packetization mechanism and WDM architecture enable fully reconfigurable resource allocation in a fronthaul network for
20MHz-bandwidth RF inputs with 64x64 MIMO carried over an aggregated compressed optical data rate of 32Gbps using
4 wavelengths. The experimental results show over 40dB RF dynamic range with < 8% error value magnitude (EVM) for
the 64 quadrature amplitude modulation (64-QAM) input signals across all the WDM channels while the lowest EVM is
less than 2%. Meanwhile, this field-programmable gate array (FPGA) based DRoF system allows flexible, software
definable and easy-scalable dynamic antenna resource allocation
Sponsorship
Engineering and Physical Sciences Research Council (EP/P003990/1)
Identifiers
External DOI: https://doi.org/10.1117/12.2607304
This record's URL: https://www.repository.cam.ac.uk/handle/1810/334904
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