Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels
The hybrid system of free space optic (FSO) and radio frequency (RF) has come forth as alternative good solution for increasing demand for high data rates in wireless communication networks. In this paper, wireless networks with hard-switching between FSO and RF link are analyzed, assuming that at a...
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doaj-50d8c83922c54101a8b0ae8d7167ea6e2020-11-24T23:54:49ZengMDPI AGComputation2079-31972019-06-01722810.3390/computation7020028computation7020028Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence ChannelsHira Khalid0Sajid Sheikh Muhammad1Hector E. Nistazakis2George S. Tombras3Department of Electrical Engineering, National University of Computer and Emerging Sciences, Lahore, Islamabad 44000, PakistanDepartment of Electrical Engineering, National University of Computer and Emerging Sciences, Lahore, Islamabad 44000, PakistanDepartment of Electronics, Computers, Telecommunications and Control, Faculty of Physics, National and Kapodistrian University of Athens, 15784 Athens, GreeceDepartment of Electronics, Computers, Telecommunications and Control, Faculty of Physics, National and Kapodistrian University of Athens, 15784 Athens, GreeceThe hybrid system of free space optic (FSO) and radio frequency (RF) has come forth as alternative good solution for increasing demand for high data rates in wireless communication networks. In this paper, wireless networks with hard-switching between FSO and RF link are analyzed, assuming that at a certain time point either one of the two links are active, with FSO link having higher priority. As the signal-to-noise ratio (SNR) of FSO link falls below a certain selected threshold, the RF link is activated. In this work, it is assumed that the FSO link follows Gamma-Gamma fading due to the atmospheric turbulence effect whereas RF link experiences Rayleigh fading. To analyze the proposed hybrid model, analytical expressions are derived for the outage probability, bit error rate and ergodic capacity. A numerical comparison is also done between the performances of the proposed hybrid FSO/RF model and the single FSO model.https://www.mdpi.com/2079-3197/7/2/28Free Space Optics (FSO)Gamma-Gamma distributionRayleigh fadingergodic capacitybit error rateOutage Probability |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hira Khalid Sajid Sheikh Muhammad Hector E. Nistazakis George S. Tombras |
spellingShingle |
Hira Khalid Sajid Sheikh Muhammad Hector E. Nistazakis George S. Tombras Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels Computation Free Space Optics (FSO) Gamma-Gamma distribution Rayleigh fading ergodic capacity bit error rate Outage Probability |
author_facet |
Hira Khalid Sajid Sheikh Muhammad Hector E. Nistazakis George S. Tombras |
author_sort |
Hira Khalid |
title |
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels |
title_short |
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels |
title_full |
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels |
title_fullStr |
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels |
title_full_unstemmed |
Performance Analysis of Hard-Switching Based Hybrid FSO/RF System over Turbulence Channels |
title_sort |
performance analysis of hard-switching based hybrid fso/rf system over turbulence channels |
publisher |
MDPI AG |
series |
Computation |
issn |
2079-3197 |
publishDate |
2019-06-01 |
description |
The hybrid system of free space optic (FSO) and radio frequency (RF) has come forth as alternative good solution for increasing demand for high data rates in wireless communication networks. In this paper, wireless networks with hard-switching between FSO and RF link are analyzed, assuming that at a certain time point either one of the two links are active, with FSO link having higher priority. As the signal-to-noise ratio (SNR) of FSO link falls below a certain selected threshold, the RF link is activated. In this work, it is assumed that the FSO link follows Gamma-Gamma fading due to the atmospheric turbulence effect whereas RF link experiences Rayleigh fading. To analyze the proposed hybrid model, analytical expressions are derived for the outage probability, bit error rate and ergodic capacity. A numerical comparison is also done between the performances of the proposed hybrid FSO/RF model and the single FSO model. |
topic |
Free Space Optics (FSO) Gamma-Gamma distribution Rayleigh fading ergodic capacity bit error rate Outage Probability |
url |
https://www.mdpi.com/2079-3197/7/2/28 |
work_keys_str_mv |
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