Coherent polarization modulated transmission through MIMO atmospheric optical turbulence channel

Tang, Xuan, Xu, Zhengyuan and Ghassemlooy, Zabih (2013) Coherent polarization modulated transmission through MIMO atmospheric optical turbulence channel. Journal of Lightwave Technology, 31 (20). pp. 3221-3228. ISSN 0733-8724

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Official URL: http://dx.doi.org/10.1109/JLT.2013.2281216

Abstract

An optical signal suffers from irradiance and phase fluctuations when propagating through the free space optical (FSO) turbulence channel, thus resulting in the degradation of the bit error rate (BER) performance. The BER performance can be improved by adopting the multiple-input multiple-output (MIMO) scheme. In this paper, we propose a coherent binary polarization shift keying (BPOLSK) modulation scheme with MIMO employing maximum ratio combining and equal gain combining diversity techniques to mitigate the turbulence effect. The gamma-gamma statistical channel model is adopted for all the turbulence regimes. The BER performance for the proposed BPOLSK-MIMO FSO link is compared with the single-input single-output and ON-OFF-keying systems by means of computer simulation. The optical power gain is investigated and demonstrated under different turbulence regimes for a number of transmitters/receivers.

Item Type: Article
Uncontrolled Keywords: Atmospheric turbulence, binary polarization shift keying (BPOLSK), bit error rate (BER), free space optical (FSO), gamma–gamma (GG), multiple-input multiple-output (MIMO), single-input single-output (SISO)
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: Becky Skoyles
Date Deposited: 01 Nov 2013 11:59
Last Modified: 10 Aug 2015 11:11
URI: http://nrl.northumbria.ac.uk/id/eprint/14462

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