Fundamental investigation of extending 4G-LTE signal over MMF/SMF-FSO under controlled turbulence conditions

Al-Musawi, Hassan, Cseh, Tamas, Bohata, Jan, Pesek, Petr, Ng, Wai Pang, Ghassemlooy, Zabih, Udvary, Eszter, Zvanovec, Stanislav and Ijaz, Muhammad (2016) Fundamental investigation of extending 4G-LTE signal over MMF/SMF-FSO under controlled turbulence conditions. In: Proceedings of the 2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP). IEEE, Piscataway, pp. 1-6. ISBN 978-1-5090-2526-8

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In this paper, we propose a hybrid radio over multi-mode/single-mode fibre and free space optics (RoMMF/SMF-FSO) system to enhance the 4th generation-long term evolution (4G-LTE) signal performance when used in local area access networks. A single mode fibre pigtailed gradient index lens is used to minimise the modal effect of the optical link at different turbulence strengths. The proposed system is characterised in terms of the system transfer function, error vector magnitude (EVM), and optical launch power (OLP). Results demonstrate the robustness of the proposed scheme in terms of increased available passband bandwidth by 2 GHz and improving the transmission shape by reducing the system transfer function ripple by more than 5 dB. Successful transmission of the 4G-LTE signal is achieved over a MMF/SMF-FSO channel with a 1.5 dB power penalty under the higher turbulence level (i.e., Rytov variance of 0.1).

Item Type: Book Section
Uncontrolled Keywords: free space optics, Long-term evolution, radio-over-fibre, muüimode optical fibres
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 13 Dec 2016 16:34
Last Modified: 24 Oct 2017 08:52

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