Adaptive beam control techniques for airborne free-space optical communication systems

被引：37
|
作者：
Mai, Vuong V. [1 ]
Kim, Hoon [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Sch Elect Engn, 291 Daehak Ro Yuseong Gu, Daejeon 34141, South Korea
来源：
APPLIED OPTICS | 2018年 / 57卷 / 26期
关键词：
OUTAGE PROBABILITY; POINTING ERRORS; LINKS; SATELLITE; OPTIMIZATION; TRACKING; NETWORK; DESIGN;
D O I：
10.1364/AO.57.007462
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we study two adaptive beam control techniques, where the beam divergence angle is adjusted at the transmitter to (i) maximize link availability or (ii) minimize transmitter power while maintaining target link availability. For this purpose, we provide closed-form expressions about the link availability and optimum beam divergence angle under the effect of generalized two-dimensional Gaussian distribution of the alignment error between the transmitter and receiver. These simple and closed-form expressions reduce the computational complexity for performance optimization. Thus, they can be used to (i) reduce the power consumption required for adaptive beam control and (ii) facilitate the fast operation of the control techniques. The results show that the adaptive beam control techniques can improve system performance under various scenarios. (C) 2018 Optical Society of America
引用
收藏
页码：7462 / 7471
页数：10
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