Unified Performance Analysis of Mixed Line of Sight RF-FSO Fixed Gain Dual-hop Transmission Systems

Zedini, E., Ansari, I. S. and Alouini, M.-S. (2015) Unified Performance Analysis of Mixed Line of Sight RF-FSO Fixed Gain Dual-hop Transmission Systems. In: 2015 IEEE Wireless Communications and Networking Conference (WCNC), New Orleans, LA, USA, 9-12 Mar 2015, pp. 46-51. ISBN 9781479984060 (doi: 10.1109/wcnc.2015.7127443)

Abstract

In this work, we carry out a unified performance analysis of a dual-hop amplify-and-forward fixed gain relay system over asymmetric links composed of both radio-frequency (RF) and unified free-space optics (FSO) under the effect of pointing errors. The RF link is modeled by the Nakagami-m fading channel and the FSO link by the Gamma-Gamma fading channel subject to both types of detection techniques (i.e. heterodyne detection and intensity modulation with direct detection (IM/DD)). In particular, we derive new unified closed-form expressions for the cumulative distribution function, the probability density function, the moment generating function, and the moments of the end-to-end signal-to-noise ratio of these systems in terms of the Meijer's G function. Based on these formulas, we offer exact closed-form expressions for the outage probability, the higher-order amount of fading, and the average bit-error rate of a variety of binary modulations in terms of the Meijer's G function. Further, an exact closed-form expression for the end-to-end ergodic capacity for the Nakagami-m-unified FSO relay links is derived in terms of the extended generalized bivariate Meijer's G function. All the given 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: Zedini, E., Ansari, I. S., and Alouini, M.-S.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISSN: 1525-3511
• ISBN: 9781479984060