نویسنده
Elamassie, Mohammed, Uysal, Murat
تاریخ انتشار
2021-09
محل انتشار
-
IEEE
موضوع
Free space optical communication, Atmospheric turbulence-induced fading, Weak turbulence conditions, Feedback-free adaptive transmission
نوع
دوره ای
زبان
انگلیسی
دیجیتال
بله
نسخه خطی
خیر
کتابخانه
دانشگاه اوزیغین
شناسه دارایی کتابخانه
2162-2337
شماره ثبت
bf92afc2-0d59-4d42-82f3-2cc5b32b12a1
محل کتابخانه
Electrical & Electronics Engineering
تاریخ
2021-09
متن نمونه
Free space optical (FSO) communication systems experience turbulence-induced fading. As a possible solution to mitigate the effects of fading, adaptive transmission that allows the adjustment of transmission parameters such as transmit power and modulation size can be used. Most of the existing works on adaptive FSO systems assume the presence of full channel state information (CSI) at the transmitter side. In practice, incomplete/outdated CSI may prevent the complete extraction of the theoretical gain expected from adaptive systems. In this letter, to avoid the difficulties associated with feedback, we propose a feedback-free adaptive modulation selection algorithm for FSO systems. We formulate the design as an optimization problem where average throughput is maximized by selecting the largest modulation order under the constraint that the required transmit power for a targeted bit error rate (BER) value does not exceed the maximum transmit power. We further present numerical results to confirm the superiority of the proposed adaptive algorithm.
DOI
10.1109/LWC.2021.3088871
Cilt
10
