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Optical Engineering

Diversity techniques for a free-space optical communication system in correlated log-normal channels
Author(s): Mohamed Raouf Abaza; Raed Mesleh; Ali Mansour; El-Hadi M. Aggoune
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Paper Abstract

Performance analysis of free-space optical (FSO) communication systems in different channel conditions has gained significant attention in literature. Nevertheless, most existing studies consider uncorrelated channel conditions. An uncorrelated channel requires sufficient spacing between transmitters and limits the receiver field of view and link distance. However, this might not be feasible in all applications. Thereby, this paper studies repetition code (RC) and orthogonal space time block code (OSTBC) performance in correlated log-normal FSO channels using intensity modulation and direct detection. An approximate analytical expressions using moment generating function for the average bit error probability are derived. Our simulation results show that RCs are superior to OSTBCs in correlated channel conditions.

Paper Details

Date Published: 3 January 2014
PDF: 7 pages
Opt. Eng. 53(1) 016102 doi: 10.1117/1.OE.53.1.016102
Published in: Optical Engineering Volume 53, Issue 1
Show Author Affiliations
Mohamed Raouf Abaza, Univ. of Tabuk (Saudi Arabia)
Raed Mesleh, Univ. of Tabuk (Saudi Arabia)
Ali Mansour, ENSTA Bretagne (France)
El-Hadi M. Aggoune, Univ. of Tabuk (Saudi Arabia)

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