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Performance analysis of free-space optical systems employing binary polarization shift keying signaling over gamma-gamma channel with pointing errors

机译:具有指向性误差的伽马-伽马通道上采用二进制偏振移位键控信令的自由空间光学系统的性能分析

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摘要

Free-space optics (FSO) has become one of the prominent solutions to the bandwidth limitation of radio frequency links. But, the FSO system performance is purely dependent on atmospheric conditions. Atmospheric turbulence, scintillation, and pointing errors are the major deteriorations in FSO communications. Multiple input multiple output (MIMO) or spatial diversity structure can improve the performance of the FSO system. The bit error rate (BER) performance of the MIMO FSO system employing binary polarization shift keying using optimal combining is analyzed. We have derived a closed form expression for the BER of the system, and the results are compared against the single input single output system.
机译:自由空间光学(FSO)已成为解决射频链路带宽限制的主要解决方案之一。但是,FSO系统的性能完全取决于大气条件。大气湍流,闪烁和指向错误是FSO通信的主要恶化。多输入多输出(MIMO)或空间分集结构可以提高FSO系统的性能。分析了采用最佳组合的采用二进制极化移位键控的MIMO FSO系统的误码率(BER)性能。我们为系统的BER导出了一个封闭形式的表达式,并将结果与​​单输入单输出系统进行比较。

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