Design and evaluation of an IDM-based MIMO FSO system over Gamma-Gamma turbulence channels

Chenglei Zhang; Xiaolin Zhou; Xiaowei Zheng; Jianhong Du

doi:10.1117/12.904168

9 December 2011 Design and evaluation of an IDM-based MIMO FSO system over Gamma-Gamma turbulence channels

Chenglei Zhang, Xiaolin Zhou, Xiaowei Zheng, Jianhong Du

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 83090Q (2011) https://doi.org/10.1117/12.904168
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

In this paper, we design an interleave-division-multiplexing (IDM) based multiple-input multiple-output (MIMO) free-space optics (FSO) communication system. The system overcomes problems harassing conventional optical MIMO systems such as restrictions of antenna number and high complexity in receiver. An iterative on-off keying (OOK) modulated IDM MIMO detection algorithm is developed. Expression of an upper bound of frame-error-rate (FER) is derived. In addition, we evaluate the BER performance of the proposed optical MIMO scheme in various FSO scenarios. Simulations confirm that the proposed scheme can effectively increase the feasibility of FSO communications over Gamma-Gamma turbulence-induced fading channels.

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Chenglei Zhang, Xiaolin Zhou, Xiaowei Zheng, and Jianhong Du "Design and evaluation of an IDM-based MIMO FSO system over Gamma-Gamma turbulence channels", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83090Q (9 December 2011); https://doi.org/10.1117/12.904168

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KEYWORDS

Free space optics

Signal to noise ratio

Receivers

Forward error correction

Modulation

Telecommunications

Turbulence

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