Zadoff-Chu sequence-based hitless ranging scheme for OFDMA-PON configured 5G fronthaul uplinks

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A Zadoff-Chu (ZC) sequence-based low-complexity hitless upstream time synchronization scheme is proposed for an orthogonal frequency division multiple access passive optical network configured cloud radio access network fronthaul. The algorithm is based on gradual loading of the ZC sequences, where the phase discontinuity due to the cyclic prefix is alleviated by a frequency domain phase precoder, eliminating the requirements of guard bands to mitigate intersymbol interference and inter-carrier interference. Simulation results for uncontrolled-wavelength asynchronous transmissions from four concurrent transmitting optical network units are presented to demonstrate the effectiveness of the proposed scheme. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
Issue Date
2017-05
Language
English
Article Type
Article
Keywords

MULTIPLE-ACCESS

Citation

OPTICAL ENGINEERING, v.56, no.5

ISSN
0091-3286
DOI
10.1117/1.OE.56.5.056110
URI
http://hdl.handle.net/10203/224734
Appears in Collection
EE-Journal Papers(저널논문)
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