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This letter studies the performance of reconfigurable intelligent surface-assisted integrated satellite-unmanned aerial vehicle (UAV)-terrestrial networks with hardware impairments (HIs) and interference in the presence of unavailable direct link. A UAV… Click to show full abstract
This letter studies the performance of reconfigurable intelligent surface-assisted integrated satellite-unmanned aerial vehicle (UAV)-terrestrial networks with hardware impairments (HIs) and interference in the presence of unavailable direct link. A UAV is considered as a relay to forward the intended signal to the satellite. Due to the practical constraints, HIs and interference are considered in this letter. Specifically, the closed-form expression for the outage probability (OP) is obtained to evaluate the impacts of RIS and key parameters on the system performance. Besides, in order to evaluate the system performance at high signal-to-noise ratios (SNRs), the asymptotic analysis for the OP is also derived. Finally, simulations are provided to verify the correctness of the theoretical results.
Journal Title: IEEE Wireless Communications Letters
Year Published: 2022
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