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)

Abstract

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
• Status: Published
• Refereed: Yes
• 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
• ISSN: 1090-3038
• ISBN: 9781479944491