On the Capacity of FSO Links under Lognormal and Rician-Lognormal Turbulences

Ansari, I. S. , Alouini, M.-S. and Cheng, J. (2014) On the Capacity of FSO Links under Lognormal and Rician-Lognormal Turbulences. In: 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), Vancouver, Canada, 14-17 Sep 2014, pp. 1-6. ISBN 9781479944491 (doi:10.1109/VTCFall.2014.6966082)

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A unified capacity analysis under weak and composite turbulences of a free-space optical (FSO) link that accounts for pointing errors and both types of detection techniques (i.e. intensity modulation/direct detection as well as heterodyne detection) is addressed in this work. More specifically, a unified exact closed-form expression for the moments of the end-to-end signal-to-noise ratio (SNR) of a single link FSO transmission system is presented in terms of well-known elementary functions. Capitalizing on these new moments expressions, unified approximate and simple closed- form results are offered for the ergodic capacity at high SNR regime as well as at low SNR regime. All the presented results are verified via computer- based Monte-Carlo simulations.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Ansari, Dr Imran
Authors: Ansari, I. S., Alouini, M.-S., and Cheng, J.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy

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