Quantized Feedback-Based Differential Signaling for Free-Space Optical Communication System

Bhatnagar, Manav, Ghassemlooy, Zabih, Zvanovec, Stanislav, Khalighi, Mohammad-Ali and Mansour Abadi, Mojtaba (2016) Quantized Feedback-Based Differential Signaling for Free-Space Optical Communication System. IEEE Transactions on Communications, 64 (12). pp. 5176-5188. ISSN 0090-6778

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Abstract

We propose a quantized feedback-based differential signaling scheme for 2 × 1 free space optical (FSO) multiple-input single-output communication systems. The analytical bit error rate (BER) for the proposed differential signaling scheme is derived and compared with the existing differential signaling scheme for FSO systems. The asymptotic BER of the proposed scheme is also determined and it is shown by using the asymptotic BER expression that the proposed scheme achieves full spatial diversity of two. Moreover, the effect of the feedback error on the performance of the proposed scheme is studied and it is demonstrated by simulation-based and analytical results that the proposed scheme significantly outperforms a previously proposed differential signaling scheme in terms of turbulence fades reduction for tolerable feedback errors.

Item Type:	Article
Uncontrolled Keywords:	multiple beam systems, Atmospheric turbulence, differential signaling, free space optical links, Gamma-Gamma fading
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	24 Jan 2017 12:05
Last Modified:	12 Oct 2019 19:21
URI:	http://nrl.northumbria.ac.uk/id/eprint/29156

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