Lasers, Fiber Optics, and Communications

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

[+] Author Affiliations
Ahmed Galib Reza, June-Koo Kevin Rhee

KAIST, School of Electrical Engineering, Daejeon, Republic of Korea

Opt. Eng. 56(5), 056110 (May 29, 2017). doi:10.1117/1.OE.56.5.056110
History: Received March 7, 2017; Accepted April 27, 2017
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Abstract.  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.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Ahmed Galib Reza and June-Koo Kevin Rhee
"Zadoff–Chu sequence-based hitless ranging scheme for OFDMA-PON configured 5G fronthaul uplinks", Opt. Eng. 56(5), 056110 (May 29, 2017). ; http://dx.doi.org/10.1117/1.OE.56.5.056110


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