Secrecy Outage Probability of Modified TAS/Alamouti-STBC Schemes under Pilot Contamination Attacks
Modified transmit antenna selection (M-TAS)/Alamouti orthogonal space-timeblock coding (STBC) schemes have been shown to achieve superior errorperformance together with a reduced-rate feedback channel in the presence offeedback imperfections when compared to the conventional TAS/Alamouti-STBCschemes...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Sakarya University
2019-02-01
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| Series: | Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/566123 |
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| Summary: | Modified transmit antenna selection (M-TAS)/Alamouti orthogonal space-timeblock coding (STBC) schemes have been shown to achieve superior errorperformance together with a reduced-rate feedback channel in the presence offeedback imperfections when compared to the conventional TAS/Alamouti-STBCschemes. By shifting the focus of the investigation, this paper answers thequery on whether the modified schemes provide enhancements in also the secrecyoutage probability (SOP) performance of multi-antenna schemes in wiretapchannels. The exact expressions of the SOP for the modified TAS/Alamouti-STBCschemes in Rayleigh fading channels have been derived and validated via MonteCarlo simulations. Additionally, the deteriorating effects of activeeavesdropping has been demonstrated by simulating the pilot contaminationattacks (PCAs) on the feedback channel. The extensive investigation andcomparisons to the conventional schemes have shown that M-TAS/Alamouti-STBC schemes employed at the transmission end of thelegitimate link provide considerable enhancements in the secrecy rates ofwireless communications systems in the presence of PCAs. |
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| ISSN: | 2147-835X |