Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks
This paper investigates secure transmission in unmanned aerial vehicle (UAV) relay-assisted millimeter wave (mmWave) networks, where the selected UAV relay performs secure transmission in both the on-off and non-on-off schemes. Meanwhile, there are multiple eavesdroppers randomly distributed on the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/19/4138 |
| _version_ | 1819071513845825536 |
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| author | Ruiqian Ma Weiwei Yang Yu Zhang Songqing Wang |
| author_facet | Ruiqian Ma Weiwei Yang Yu Zhang Songqing Wang |
| author_sort | Ruiqian Ma |
| collection | DOAJ |
| description | This paper investigates secure transmission in unmanned aerial vehicle (UAV) relay-assisted millimeter wave (mmWave) networks, where the selected UAV relay performs secure transmission in both the on-off and non-on-off schemes. Meanwhile, there are multiple eavesdroppers randomly distributed on the ground and attempting to wiretap the transmission. Leveraging the air-to-ground channel model and the tools of stochastic geometry, the novel expressions of transmit probability (TP) and secrecy outage probability (SOP) are derived in both the on-off and non-on-off transmission schemes with perfect beam alignment. The secrecy performance improvement is demonstrated in the on-off transmission scheme, and we find that there exists an optimal altitude of UAV relays to achieve the best TP. In addition, due to the limitations of UAV carriers, such as its low computational capacity and high mobility, the perfect beam alignment is difficult to achieve in the mmWave networks aided by UAV relays, and the effect of beam alignment error on the secrecy performance is investigated in the considered networks. Analyzing the numerical and simulation results, we find that the SOP will not have obvious deterioration when the beam alignment error is relatively small, and the SOP can be improved by using the antennas with a large number of elements. However, in high beam alignment error regime, the antenna arrays with a smaller number of elements will provide the better SOP. |
| first_indexed | 2024-12-21T17:23:02Z |
| format | Article |
| id | doaj.art-d82b572c20ef46f2b7802fe61cad613e |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-21T17:23:02Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d82b572c20ef46f2b7802fe61cad613e2022-12-21T18:56:07ZengMDPI AGApplied Sciences2076-34172019-10-01919413810.3390/app9194138app9194138Secure On-Off Transmission in UAV Relay-Assisted mmWave NetworksRuiqian Ma0Weiwei Yang1Yu Zhang2Songqing Wang3College of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, ChinaCollege of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, ChinaCollege of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, ChinaCommand and Control Engineering College, Army Engineering University of PLA, Nanjing 210007, ChinaThis paper investigates secure transmission in unmanned aerial vehicle (UAV) relay-assisted millimeter wave (mmWave) networks, where the selected UAV relay performs secure transmission in both the on-off and non-on-off schemes. Meanwhile, there are multiple eavesdroppers randomly distributed on the ground and attempting to wiretap the transmission. Leveraging the air-to-ground channel model and the tools of stochastic geometry, the novel expressions of transmit probability (TP) and secrecy outage probability (SOP) are derived in both the on-off and non-on-off transmission schemes with perfect beam alignment. The secrecy performance improvement is demonstrated in the on-off transmission scheme, and we find that there exists an optimal altitude of UAV relays to achieve the best TP. In addition, due to the limitations of UAV carriers, such as its low computational capacity and high mobility, the perfect beam alignment is difficult to achieve in the mmWave networks aided by UAV relays, and the effect of beam alignment error on the secrecy performance is investigated in the considered networks. Analyzing the numerical and simulation results, we find that the SOP will not have obvious deterioration when the beam alignment error is relatively small, and the SOP can be improved by using the antennas with a large number of elements. However, in high beam alignment error regime, the antenna arrays with a smaller number of elements will provide the better SOP.https://www.mdpi.com/2076-3417/9/19/4138uavrelaymillimeter waveon-off transmission schemephysical-layer securitybeam alignment error |
| spellingShingle | Ruiqian Ma Weiwei Yang Yu Zhang Songqing Wang Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks Applied Sciences uav relay millimeter wave on-off transmission scheme physical-layer security beam alignment error |
| title | Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks |
| title_full | Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks |
| title_fullStr | Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks |
| title_full_unstemmed | Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks |
| title_short | Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks |
| title_sort | secure on off transmission in uav relay assisted mmwave networks |
| topic | uav relay millimeter wave on-off transmission scheme physical-layer security beam alignment error |
| url | https://www.mdpi.com/2076-3417/9/19/4138 |
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