Research on free-space optical communication system for OFDM serial relay based on exponentiated Weibull turbulence model

Lin Zhu; Minhui Zhang; Yi Wang

doi:10.1117/12.2575409

5 November 2020 Research on free-space optical communication system for OFDM serial relay based on exponentiated Weibull turbulence model

Lin Zhu, Minhui Zhang, Yi Wang

Author Affiliations +

Proceedings Volume 11569, AOPC 2020: Optical Information and Network; 1156904 (2020) https://doi.org/10.1117/12.2575409
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

The performance of a decode-and-forward (DF) serial relay OFDM free-space optical (FSO) communication system with exponentiated Weibull (EW) distribution is investigated in this paper. Considering that the optical signal propagation in free space is affected by a variety of destructive effects such as atmospheric turbulence, fog, path loss and pointing error, the closed expression of system outage probability and symbol error rate is derived using the Meijer G function respectively. The effects of key factors such as the number of different relay nodes, weather conditions, link length between relays, and number of subcarriers on the outage and symbol error rate performance of the serial relay OFDM FSO system are analyzed by simulation. The results show that the system's performance decreases with the increase of the distance between relays, and the communication will be interrupted in foggy days.

Citation Download Citation

Lin Zhu, Minhui Zhang, and Yi Wang "Research on free-space optical communication system for OFDM serial relay based on exponentiated Weibull turbulence model", Proc. SPIE 11569, AOPC 2020: Optical Information and Network, 1156904 (5 November 2020); https://doi.org/10.1117/12.2575409

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KEYWORDS

Relays

Free space optics

Orthogonal frequency division multiplexing

Turbulence

Signal attenuation

Signal to noise ratio

Atmospheric turbulence

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