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- W4285143164 abstract "This article investigates the secrecy performance for an unmanned aerial vehicle (UAV)-aided nonorthogonal multiple access (NOMA) network in the context of an underlay cognitive radio. Specifically, a multiantenna secondary source ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$S$ </tex-math></inline-formula> ) transmits a mixed signal incorporated with NOMA to two multiantenna secondary destinations ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$D_{i}$ </tex-math></inline-formula> ) via a UAV-enabled decode-and-forward relay in the presence of an eavesdropper ( <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$E$ </tex-math></inline-formula> ). In addition, both a transmit antenna selection scheme at <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$S$ </tex-math></inline-formula> and a maximal ratio combining protocol at <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>${D_{i}}$ </tex-math></inline-formula> and <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$E$ </tex-math></inline-formula> are taken into account. Considering all the links undergo Nakagami- <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$m$ </tex-math></inline-formula> fading with path loss, we analyze the secrecy performance in terms of secrecy outage probability for both users. Moreover, we also use Monte-Carlo simulations to verify the accuracy of those derived expressions." @default.
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- W4285143164 date "2022-11-15" @default.
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- W4285143164 title "On Secrecy Analysis of Underlay Cognitive UAV-Aided NOMA Systems With TAS/MRC" @default.
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- W4285143164 doi "https://doi.org/10.1109/jiot.2022.3181826" @default.
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