The article demonstrates a novel Digital Predistortion (DPD) architecture for Mobile Front Haul links for the advanced Long-Term Evolution (LTE) and upcoming 5G networks. Precisely, the use of a feedback approximation method has been proposed and experimentally demonstrated herein that simplifies the complexities in realizing the practical DPD technique for Multi-Mode VCSELs and Multi-Mode Fibers based Radio over Fiber systems. As a figure of merit, linearization efficiency is provided in terms of Adjacent Channel Power Ratio, Normalized Mean Square Error and Error Vector Magnitude referring to a complete LTE frame occupying 10 MHz with 256-QAM modulation format.
Hadi M.U., Nanni J., Venard O., Baudoin G., Polleux J.L., Tartarini G. (2020). Practically feasible closed-loop digital predistortion for VCSEL-MMF-based radio-over-fiber links. RADIOENGINEERING, 29(1), 37-43 [10.13164/re.2020.0037].
Practically feasible closed-loop digital predistortion for VCSEL-MMF-based radio-over-fiber links
Hadi M. U.
;Nanni J.;Tartarini G.
2020
Abstract
The article demonstrates a novel Digital Predistortion (DPD) architecture for Mobile Front Haul links for the advanced Long-Term Evolution (LTE) and upcoming 5G networks. Precisely, the use of a feedback approximation method has been proposed and experimentally demonstrated herein that simplifies the complexities in realizing the practical DPD technique for Multi-Mode VCSELs and Multi-Mode Fibers based Radio over Fiber systems. As a figure of merit, linearization efficiency is provided in terms of Adjacent Channel Power Ratio, Normalized Mean Square Error and Error Vector Magnitude referring to a complete LTE frame occupying 10 MHz with 256-QAM modulation format.| File | Dimensione | Formato | |
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20_01_0037_0043.pdf
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