Author
Elamassie, Mohammed, Uysal, Murat
Publication Date
2020-08
Publication Place
-
IEEE
Subject
Free space optical communication, Lognormal fading, Generalized transmit laser selection, Diversity order
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1089-7798
Record ID
49230414-b240-400a-8eb9-8366c5c694c5
Library Location
Electrical & Electronics Engineering
Date
2020-08
Notes
TÜBİTAK
Sample Text
In free space optical communication systems, transmit laser selection (TLS) has been proposed as an efficient fading-mitigation technique over turbulence channels. In TLS, the transmitter is equipped with a number of laser sources and the best laser source is selected for transmission. In practice, feedback error or outdated selection due to temporal changes in the channel may result in selecting another source rather than the best one. In this letter, we consider a FSOC system with generalized TLS (GTLS) where the nth best laser is selected among the available N lasers. Under the assumption of lognormal turbulence channels in addition to pointing errors, we derive a closed-form expression for asymptotic bit error rate. We use our derived closed-form expression to determine the diversity gains. We finally present simulation results to corroborate our analytical findings.
DOI
10.1109/LCOMM.2020.2989560
Cilt
24
