Reflecting Elements Analysis for Secure and Energy-Efficient UAV-RIS System With Phase Errors
This letter investigates the minimum number of reflecting elements to achieve secure and energy-efficient unmanned aerial vehicle (UAV)-reconfigurable intelligent surface (RIS) systems. Specifically, we consider a UAV equipped with a RIS as a passive relay to assist communication from a source to us...
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| Veröffentlicht in: | IEEE wireless communications letters 2024-02, Vol.13 (2), p.293-297 |
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| creator | Diao, Danyu Wang, Buhong Cao, Kunrui Zheng, Beixiong Dong, Runze Cheng, Tianhao Chen, Jingyu |
| description | This letter investigates the minimum number of reflecting elements to achieve secure and energy-efficient unmanned aerial vehicle (UAV)-reconfigurable intelligent surface (RIS) systems. Specifically, we consider a UAV equipped with a RIS as a passive relay to assist communication from a source to users while avoiding terrestrial eavesdroppers. Taking account into phase estimation errors caused by imperfect conditions such as UAV jitter, the minimum number of reflecting elements under secrecy and energy efficiency constraints is derived in closed form. Our simulation results verify the correctness of theoretical derivation and demonstrate that the UAV-RIS systems outperform terrestrial RIS systems. Our research provides theoretical guidance for configuring reflecting elements in practical UAV-RIS systems. |
| doi_str_mv | 10.1109/LWC.2023.3327384 |
| format | Article |
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| subjects | Autonomous aerial vehicles energy efficiency Errors Fading channels Jitter number analysis Optimized production technology Phase estimation reconfigurable intelligent surface (RIS) Relays secrecy performance Signal to noise ratio Unmanned aerial vehicle (UAV) Unmanned aerial vehicles |
| title | Reflecting Elements Analysis for Secure and Energy-Efficient UAV-RIS System With Phase Errors |
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