Error performance analysis of FSO links with equal gain diversity receivers over double generalized gamma fading channels

Mohammadreza Aminikashani; Mohsen Kavehrad; Wenjun Gu

doi:10.1117/12.2211590

12 February 2016 Error performance analysis of FSO links with equal gain diversity receivers over double generalized gamma fading channels

Mohammadreza Aminikashani, Mohsen Kavehrad, Wenjun Gu

Author Affiliations +

Proceedings Volume 9772, Broadband Access Communication Technologies X; 97720R (2016) https://doi.org/10.1117/12.2211590
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

Free space optical (FSO) communication has been receiving increasing attention in recent years with its ability to achieve ultra-high data rates over unlicensed optical spectrum. A major performance limiting factor in FSO systems is atmospheric turbulence which severely degrades the system performance. To address this issue, multiple transmit and/or receive apertures can be employed, and the performance can be improved via diversity gain. In this paper, we investigate the bit error rate (BER) performance of FSO systems with transmit diversity or receive diversity with equal gain combining (EGC) over atmospheric turbulence channels described by the Double Generalized Gamma (Double GG) distribution. The Double GG distribution, recently proposed, generalizes many existing turbulence models in a closed-form expression and covers all turbulence conditions. Since the distribution function of a sum of Double GG random variables (RVs) appears in BER expression, we first derive a closed-form upper bound for the distribution of the sum of Double GG distributed RVs. A novel union upper bound for the average BER as well as corresponding asymptotic expression is then derived and evaluated in terms of Meijers G-functions.

Citation Download Citation

Mohammadreza Aminikashani, Mohsen Kavehrad, and Wenjun Gu "Error performance analysis of FSO links with equal gain diversity receivers over double generalized gamma fading channels", Proc. SPIE 9772, Broadband Access Communication Technologies X, 97720R (12 February 2016); https://doi.org/10.1117/12.2211590

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available