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    Optical Heterodyne Analog Radio-Over-Fiber Link for Millimeter-Wave Wireless Systems

    Delmade, Amol and Browning, Colm and Verolet, Theo and Poette, Julien and Farhang, Arman and Elwan, Hamza Hallak and Koilpillai, R David and Aubin, Guy and Lelarge, F and Ramdane, Abderrahim and Venkitesh, Deepa and Barry, Liam P (2021) Optical Heterodyne Analog Radio-Over-Fiber Link for Millimeter-Wave Wireless Systems. Journal of Lightwave Technology, 39 (2). pp. 465-474. ISSN 0733-8724

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    Optical heterodyne analog radio-over-fiber (A-RoF) links provide an efficient solution for future millimeter wave (mm-wave) wireless systems. The phase noise of the photo-generated mm-wave carrier limits the performance of such links, especially, for the transmission of low subcarrier baud rate multi-carrier signals. In this work, we present three different techniques for the compensation of the laser frequency offset (FO) and phase noise (PN) in an optical heterodyne A-RoF system. The first approach advocates the use of an analog mm-wave receiver; the second approach uses standard digital signal processing (DSP) algorithms, while in the third approach, the use of a photonic integrated mode locked laser (MLL) with reduced DSP is advocated. The compensation of the FO and PN with these three approaches is demonstrated by successfully transmitting a 1.95 MHz subcarrier spaced orthogonal frequency division multiplexing (OFDM) signal over a 25 km 61 GHz mm-wave optical heterodyne A-RoF link. The advantages and limitations of these approaches are discussed in detail and with regard to recent 5G recommendations, highlighting their potential for deployment in next generation wireless systems.

    Item Type: Article
    Keywords: 5G; millimeter-wave communications; radioover-fiber; optical heterodyning; fronthaul;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 18480
    Identification Number:
    Depositing User: Arman Farhang
    Date Deposited: 07 May 2024 11:11
    Journal or Publication Title: Journal of Lightwave Technology
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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