Journal ArticleDOI
Performance of an amplify-and-forward dual-hop asymmetric RF–FSO communication system
Sanya Anees,Manav R. Bhatnagar +1 more
TLDR
In this work, the performance and the capacity analysis of a fixed-gain amplify-and-forward (AF)-based dual-hop asymmetric radio frequency-free space optical (RF-FSO) communication system is performed and the effects of fading, turbulence, and pointing error are studied on the outage probability, average BER, and the channel capacity.Abstract:
In this work, the performance and the capacity analysis of a fixed-gain amplify-and-forward (AF)-based dual-hop asymmetric radio frequency–free space optical (RF–FSO) communication system is performed. The RF link experiences Nakagami-m fading and the FSO link experiences Gamma–Gamma turbulence. For this mixed RF–FSO cooperative system, novel and finite power series-based mathematical expressions for the cumulative distribution function, probability density function, and moment generating function of the end-to-end signal-to-noise ratio are derived. Using these channel statistics new finite power series-based analytical expressions are obtained for the outage probability, the average bit error rate (BER) for various binary and M-ary modulation techniques, and the average channel capacity of the considered system. The same analysis is also performed for the scenario when the FSO link undergoes significant pointing errors along with the Gamma–Gamma distributed turbulence. As a special case analytical expressions for the outage probability, BER, and channel capacity are also presented for a dual-hop asymmetric RF–FSO system where the RF link is Rayleigh distributed. Simulation results validate the proposed mathematical analysis. The effects of fading, turbulence, and pointing error are studied on the outage probability, average BER, and the channel capacity.read more
Citations
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Journal ArticleDOI
On the Performance Analysis of Dual-Hop Mixed FSO/RF Systems
TL;DR: Novel results for the performance analysis of dual-hop free-space optical/radio frequency (FSO/RF) transmission systems where the FSO link is modeled by the Gamma-Gamma distribution with pointing error impairments, and the RF link experiences the generalized Nakagami-$m$ fading.
Journal ArticleDOI
Generalized Performance Analysis of Mixed RF/FSO Cooperative Systems
TL;DR: This paper investigates the performance of mixed RF/FSO systems along with a direct RF link where the FSO link and RF links, respectively, experience double generalized gamma turbulence with pointing error and Nakagami-m fading and provides a generalized framework for several existing results.
Journal ArticleDOI
Optical Wireless Hybrid Networks: Trends, Opportunities, Challenges, and Research Directions
TL;DR: This study surveys the state of the art and key research directions regarding optical wireless hybrid networks, being the first extensive survey dedicated to this topic and outlines important challenges that need to be addressed for successful deployment of optical Wireless hybrid network systems for 5G and IoT paradigms.
Journal ArticleDOI
On Secrecy Performance of Mixed RF-FSO Systems
Hongjiang Lei,Zhijun Dai,Imran Shafique Ansari,Ki-Hong Park,Gaofeng Pan,Mohamed-Slim Alouini +5 more
TL;DR: By utilizing the expansion of Meijer's G-function, asymptotic results for SOP and ASC are derived when the electrical signal-to-noise ratio of the FSO link tends to infinity.
Journal ArticleDOI
Performance evaluation of decode-and-forward dual-hop asymmetric radio frequency-free space optical communication system
Sanya Anees,Manav R. Bhatnagar +1 more
TL;DR: For this mixed RF-FSO cooperative system, novel closed-form mathematical expressions are derived for cumulative distribution function, probability density function and moment generating function of the equivalent signal-to-noise ratio in terms of Meijer-G function.
References
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Journal ArticleDOI
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Outage Capacity Optimization for Free-Space Optical Links With Pointing Errors
A.A. Farid,Steve Hranilovic +1 more
TL;DR: A statistical model for the optical intensity fluctuation at the receiver due to the combined effects of atmospheric turbulence and pointing errors is derived and the effect of beam width, detector size, and jitter variance explicitly is considered.