1. On N-PAM and M-QAM implementation within the hybrid RoF-FSO-PON system
- Author
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Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions, Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia, Ministry of Education, Youth and Sports, República Checa, Nguyen, Dong-Nhat, Zvanovec, Stanislav, Bohata, Jan, Ortega Tamarit, Beatriz, Vallejo-Castro, Luis, Ghassemlooy, Zabih, Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions, Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia, Ministry of Education, Youth and Sports, República Checa, Nguyen, Dong-Nhat, Zvanovec, Stanislav, Bohata, Jan, Ortega Tamarit, Beatriz, Vallejo-Castro, Luis, and Ghassemlooy, Zabih
- Abstract
© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works., [EN] This paper investigates an optical transmission architecture of a passive optical network (PON), which is compatible with the millimeter-wave radio-over-fiber and free-space optics systems (RoF-FSO) under weak-to-strong atmospheric turbulence (AT) regimes to enable seamless connectivity as part of next-generation broadband wireless access networks. We first analyze and evaluate in simulation the transmission performance of the integrated system at 40 GHz for 10 Gb/s N-pulse amplitude modulation (N-PAM) with N = 2, 4. Link performance shows that, 4-PAM outperforms 2-PAM in terms of tolerance to the combined impairment of fiber chromatic dispersion and AT. We then experimentally demonstrate the proof-of-concept integrated RoF-FSO-PON at 25 GHz using 20 MHz M-quadrature amplitude modulation (M-QAM) signals with M = 4, 16, 64. We show that, for QAM with a higher-order M, the link performance is being more affected by the combined impairments.
- Published
- 2020