RF-chirp phase dither for MPI mitigation in RoF-based 5G mobile fronthaul networks

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The multipath interference (MPI) noise is one of the most important limiting factors on the performance of the mobile fronthaul network (MFN) based on the radio-over-fiber (RoF) technology. Recently, it has been proposed to suppress this MPI noise by using the Gaussian phase dither. However, it broadens the optical spectrum significantly and, as a result, increases its vulnerability to the chromatic dispersion. To overcome this problem, we propose to suppress the MPI noise by using the RF-chirp dither instead of the Gaussian dither. The results show that, due to the narrow optical spectrum achieved by the RF-chirp dither, we can increase the transmission distance of the RoF-based MFN operating in the 1.5-mu m region by three times.
Publisher
OPTICAL SOC AMER
Issue Date
2020-10
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.28, no.21, pp.32002 - 32009

ISSN
1094-4087
DOI
10.1364/OE.404616
URI
http://hdl.handle.net/10203/277761
Appears in Collection
EE-Journal Papers(저널논문)
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