@inproceedings{52a300069aec434d91692b4150010572,
title = "Performance analysis of FSO system with different modulation schemes over gamma-gamma turbulence channel",
abstract = "Free-space optical communications (FSO) suffers from irradiance fluctuation caused by atmospheric turbulence, which results in optical power loss and consequently decreased signal-to-noise ratio (SNR). The error performances of the FSO based on On-Off Keying (OOK), Differential Phase Shift Keying (DPSK), and Binary Phase Shift Keying (BPSK) schemes in a turbulent atmosphere are presented. The received irradiance after propagating the atmosphere is modeled using the gamma-gamma distribution to evaluate the system error performance in turbulence regimes from weak to strong. The results show that, to obtain a BER of 10-6 at weak turbulence regime, ∼15 dB and ∼18 dB SNRs are required for BPSK and DPSK, respectively. However, for OOK with a fixed threshold of 0.5 under the same channel condition, OOK reaches an error floor greater than 10-3. The values of SNR required to achieve the same BER increase as the turbulence strength increase to moderate and strong regimes.",
keywords = "BPSK, DPSK, Gamma-Gamma channel, OOK, atmospheric turbulence, free space optical",
author = "Haiguang Zhang and Xuan Tang and Bangjiang Lin and Zhenlei Zhou and Chun Lin and Sushank Chaudhary and Z. Ghassemlooy",
note = "Publisher Copyright: {\textcopyright} 2019 SPIE.; 17th International Conference on Optical Communications and Networks, ICOCN 2018 ; Conference date: 16-11-2018 Through 19-11-2018",
year = "2019",
doi = "10.1117/12.2519711",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Zhaohui Li",
booktitle = "17th International Conference on Optical Communications and Networks, ICOCN 2018",
address = "美国",
}