Security Enhancement via Antenna Selection in MIMOME Channels With Discrete Inputs
| العنوان: | Security Enhancement via Antenna Selection in MIMOME Channels With Discrete Inputs |
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| المؤلفون: | Hongwen Yang, Chongjun Ouyang, Ailing Xiao, Julian Cheng, Sheng Wu, Chunxiao Jiang |
| المصدر: | IEEE Transactions on Communications. 68:5041-5055 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Modulation order, Computer science, 020302 automobile design & engineering, 020206 networking & telecommunications, 02 engineering and technology, Communications system, QAM, Signal-to-noise ratio, 0203 mechanical engineering, Modulation, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, Antenna (radio), Algorithm, Quadrature amplitude modulation, Computer Science::Cryptography and Security, Computer Science::Information Theory, Rayleigh fading, Communication channel |
| الوصف: | Transmit antenna selection (TAS) is an emerging technology in physical layer security. To provide new insights into the achievable secrecy performance of TAS in practical communication systems, this paper investigates the average secrecy rate (ASR) and secrecy outage probability (SOP) under practical modulation schemes in TAS aided multiple-input multiple-output multiple-antenna eavesdropper (MIMOME) wiretap channels over Rayleigh fading. Particularly, this research concentrates more on the square $M$ -ary quadrature amplitude modulation ( $M$ -QAM). Furthermore, in the considered MIMOME channel, a single antenna is selected to transmit the secret message, and selection combining (SC) or maximal-ratio combining (MRC) is utilized at the legitimate receiver and the eavesdropper. Based on this system model, novel expressions for the ASR and SOP are formulated to characterize the secrecy performance of the finite-alphabet driven MIMOME channel. Besides exact analysis, an asymptotic analysis is performed using the considered performance metrics in high signal-to-noise ratio (SNR) regime. Theoretical analyses suggest that the asymptotic ASR and SOP converge to finite constants in high SNR regime due to the discrete constellation constraint, and we find that the asymptotic behaviour of discrete inputs differs from that of Gaussian inputs. Furthermore, we derive concise expressions to characterize the rate of convergence (ROC) of the ASR and SOP, respectively. To unveil more system design insights, we discuss the relationship between the ROC and several important system parameters such as the antenna number and the modulation order. |
| تدمد: | 1558-0857 0090-6778 |
| DOI: | 10.1109/tcomm.2020.2997401 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::9a64f364bc627b8017df7eca6d98df11 https://doi.org/10.1109/tcomm.2020.2997401 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........9a64f364bc627b8017df7eca6d98df11 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15580857 00906778 |
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| DOI: | 10.1109/tcomm.2020.2997401 |