24–26 GHz radio-over-fiber and free-space optics for fifth-generation systems

Bohata, Jan, Komanec, Matěj, Spáčil, Jan, Ghassemlooy, Zabih, Zvánovec, Stanislav and Slavík, Radan (2018) 24–26 GHz radio-over-fiber and free-space optics for fifth-generation systems. Optics Letters, 43 (5). pp. 1035-1038. ISSN 0146-9592

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Abstract

This Letter outlines radio-over-fiber combined with radio-over-free-space optics (RoFSO) and radio frequency free-space transmission, which is of particular relevance for fifth-generation networks. Here, the frequency band of 24–26 GHz is adopted to demonstrate a low-cost, compact, and high-energy-efficient solution based on the direct intensity modulation and direct detection scheme. For our proof-of-concept demonstration, we use 64 quadrature amplitude modulation with a 100 MHz bandwidth. We assess the link performance by exposing the RoFSO section to atmospheric turbulence conditions. Further, we show that the measured minimum error vector magnitude (EVM) is 4.7% and also verify that the proposed system with the free-space-optics link span of 100 m under strong turbulence can deliver an acceptable EVM of <9% with signal-to-noise ratio levels of 22 dB and 10 dB with and without turbulence, respectively.

Item Type:	Article
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	21 May 2018 11:12
Last Modified:	11 Oct 2019 20:15
URI:	http://nrl.northumbria.ac.uk/id/eprint/34290

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