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Performance analysis of QPSK in free-space optical communications systems over combined channel with phase compensation error

机译：具有相位补偿误差的组合信道上自由空间光通信系统中QPSK的性能分析

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摘要

Performance of free-space optical (FSO) links employed quadrature phase shift keying (QPSK) modulation with phase compensation error over Combined Channel is investigated in this paper. By considering the key factors of weather condition; pointing errors and phase noise, the closed-form expressions of symbol error rate (SER) are derived by employing the hyper-geometric functions substitution method. Numerical results show that for FSO system in Combined Channel, SER must be the trade off between pointing errors and weather condition, but it suffers more from the weather condition. The effects of pointing errors on system performance are also studied.
机译：本文研究了在组合信道上采用正交相移键控（QPSK）调制并具有相位补偿误差的自由空间光（FSO）链路的性能。通过考虑天气条件的关键因素；指向误差和相位噪声，通过使用超几何函数替换方法导出符号错误率（SER）的闭式表达式。数值结果表明，对于组合通道的FSO系统，SER必须在指向误差和天气状况之间进行权衡，但它受天气状况的影响更大。还研究了指向错误对系统性能的影响。

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  • 来源
    《Optical and quantum electronics》 |2015年第8期|2555-2563|共9页
  • 作者

    Junyu Shang; Zuoyong Nan; Siqi Liu; Chen Qiu; Xuemei Xin;

  • 作者单位

    Network Technology Research Institute, China United Network Communications Corporation Limited, Beijing 100048, China;

    Network Technology Research Institute, China United Network Communications Corporation Limited, Beijing 100048, China;

    Network Technology Research Institute, China United Network Communications Corporation Limited, Beijing 100048, China;

    Network Technology Research Institute, China United Network Communications Corporation Limited, Beijing 100048, China;

    Network Technology Research Institute, China United Network Communications Corporation Limited, Beijing 100048, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Free-space optical; Combined channel; Symbol error rate; Hyper-geometric function substitution; Phase compensation error;

    机译：自由空间光学;组合渠道;符号错误率;超几何函数替换;相位补偿误差;

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