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Capacity and outage probability analysis of asymmetric dual-hop RF-FSO communication systems

Publication Type : Journal Article

Publisher : IET Communications

Source : IET Communications, Institution of Engineering and Technology, Volume 12, Issue 16, p.1979-1983 (2018)

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Keywords : Asymptotic analysis, Closed-form expression, Communication channels (information theory), cooperative communication, Cost effectiveness, Ergodic channel capacity, Fading (radio), Free space optical communication systems, High signal-to-noise ratio, Nakagami-m fading, Optical communication, Outage probability, outage probability analysis, radio links, Secure wireless communication, Signal to noise ratio, Wireless telecommunication systems .

Campus : Coimbatore

School : School of Engineering

Department : Electronics and Communication

Year : 2018

Abstract : Free space optical (FSO) communication systems have high bandwidth, cost effectiveness and can provide secure wireless communication service for users. They can also form asymmetric dual-hop cooperative communication links by multiplexing numerous radio frequency (RF) users by using amplify-forward transmissions over the FSO channel after converting to optical signals. In this study, an asymmetric dual-hop RF-FSO system is studied where the RF links follow the well-known Nakagami-m fading distribution and the FSO channel is efficiently modelled by the Málaga turbulence fading. The performance of the system is studied by deriving the closed-form expressions for the outage probability and ergodic channel capacity together with their asymptotic analysis at high signal-to-noise ratio. The numerical results are corroborated by Matlab analytical plots. © The Institution of Engineering and Technology 2018.

Cite this Research Publication : Vineeth Palliyembil, Jagadeesh Vellakudiyan, Palanivel Muthuchidamdaranathan, Theodoros A Tsiftsis, “Capacity and outage probability analysis of asymmetric dual-hop RF–
FSO communication systems”, IET Communications, 12, 1979-1983, 2018.

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