Aperture averaging effects on the average spectral efficiency of FSO links over turbulence channel with pointing errors
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- 作者：G. Aarthi ; K. Prabu ; G. Ramachandra Reddy
- 关键词：Free space optics ; Channel capacity ; Gamma &ndash ; Gamma channel model ; Coherent OWC ; POLSK ; Pointing errors
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：15 February 2017
- 年：2017
- 卷：385
- 期：Complete
- 页码：136-142
- 全文大小：868 K
文摘
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The ASE for the FSO communications is analyzed under different atmospheric turbulences and pointing errors.
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Novel closed form ACC expressions are derived for OOK, Coherent OWC and POLSK.
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Moment Generating Function (MGF) approach is used to derive the average channel capacity.
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Effect of aperture averaging on the average spectral efficiency is explored.