Performance analysis of amplify and forward serial relaying coherent OFDM FSO system based on M distribution

Wangyue Lu; Wenqi Du; Yi Wang

doi:10.1117/12.2565343

17 April 2020 Performance analysis of amplify and forward serial relaying coherent OFDM FSO system based on M distribution

Wangyue Lu, Wenqi Du, Yi Wang

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Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 1145579 (2020) https://doi.org/10.1117/12.2565343
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

In this paper, the performance of amplify and forward (AF) serial relaying coherent orthogonal frequency division multiplexing (OFDM) free space optical communication (FSO) system is analyzed over an aggregated atmospheric turbulence attenuation channel, which considers path loss, pointing error and M distribution channel. In this FSO system, it is assumed that channel state information (CSI) of transmitter and receiver is known, quadrature amplitude modulation (QAM) is used as the subcarrier mapping mode of OFDM. With the help of Meijer’s G function, the closed-form expressions of outage probability and average symbol error probability (ASER) for the FSO system under consideration are derived. The effects of subcarriers, the number of hops and turbulence intensity on the performance of coherent OFDM FSO systems are analyzed through simulation.

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Wangyue Lu, Wenqi Du, and Yi Wang "Performance analysis of amplify and forward serial relaying coherent OFDM FSO system based on M distribution", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 1145579 (17 April 2020); https://doi.org/10.1117/12.2565343

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KEYWORDS

Free space optics

Orthogonal frequency division multiplexing

Turbulence

Signal attenuation

Quadrature amplitude modulation

Signal to noise ratio

Modulation

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