Average capacity of airborne optical links over exponentiated Weibull atmospheric turbulence channels

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• 作者：Jing Zhao ; Shang-hong Zhao ; Wei-hu Zhao ; Yong-jun Li…
• 关键词：Aperture averaging ; Channel capacity ; Airborne optical communication ; Exponentiated Weibull distribution
• 刊名：Optical and Quantum Electronics
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：49
• 期：3
• 全文大小：
• 刊物主题：Optics, Lasers, Photonics, Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X
• 卷排序：49

文摘

In this paper, we present analytical expressions for the average capacity of airborne optical communication systems under the combined influence of atmospheric turbulence and aero-optics effect. The atmospheric turbulence channel is modeled by the exponentiated Weibull distribution. We derive a novel expression for the average capacity in terms of a convergent series involving a Meijer’s G function. We evaluate the average capacity under the influence of various flight altitude and propagation distance. Also the effect of aperture averaging on the capacity is investigated. Results show that the influence is very strong in the cases of long optical links and small aperture diameters of the receiver. Increasing the receiver aperture causes an increase in the capacity.