TY - JOUR
T1 - Relayed FSO communication with aperture averaging receivers and misalignment errors
AU - Sharma, Prabhat Kumar
AU - Bansal, Ankur
AU - Garg, Parul
AU - Tsiftsis, Theodoros
AU - Barrios, Ricardo
N1 - Publisher Copyright:
© The Institution of Engineering and Technology 2016.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/1/5
Y1 - 2017/1/5
N2 - In this study, the performance of decode-and-forward relay-assisted free-space-optical (FSO) communication systems under atmospheric turbulence-induced fading and misalignment errors is investigated. To mitigate the adverse effects of the atmospheric turbulence, the aperture-averaging receivers are considered both at the relay and destination sides. The atmospheric turbulence-induced fading is modelled via the exponentiated-Weibull distribution, which has recently been proposed to characterise an FSO link in the presence of finite-sized receiver aperture. The expression for the moment generating function (MGF) of the instantaneous signal-to-noise ratio is derived. Furthermore, new closed-form expression for the outage probability is obtained. Moreover, the new expression for the average symbol error rate of the subcarrier intensity-modulated M-ary phase-shift keying is obtained using the MGFbased approach. Finally, numerical examples are discussed and all the derived analytical results are corroborated by Monte Carlo simulations.
AB - In this study, the performance of decode-and-forward relay-assisted free-space-optical (FSO) communication systems under atmospheric turbulence-induced fading and misalignment errors is investigated. To mitigate the adverse effects of the atmospheric turbulence, the aperture-averaging receivers are considered both at the relay and destination sides. The atmospheric turbulence-induced fading is modelled via the exponentiated-Weibull distribution, which has recently been proposed to characterise an FSO link in the presence of finite-sized receiver aperture. The expression for the moment generating function (MGF) of the instantaneous signal-to-noise ratio is derived. Furthermore, new closed-form expression for the outage probability is obtained. Moreover, the new expression for the average symbol error rate of the subcarrier intensity-modulated M-ary phase-shift keying is obtained using the MGFbased approach. Finally, numerical examples are discussed and all the derived analytical results are corroborated by Monte Carlo simulations.
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U2 - 10.1049/iet-com.2016.0253
DO - 10.1049/iet-com.2016.0253
M3 - Article
AN - SCOPUS:85006974113
VL - 11
SP - 45
EP - 52
JO - IET Communications
JF - IET Communications
SN - 1751-8628
IS - 1
ER -