Physical layer secrecy performance analysis of TAS / MRC system over Rayleigh/Nakagami fading channels
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Từ khóa:
physical layer secrecy
secrecy capacity
TAS/RMC system
Rayleight fading
Nakanami fading
Tóm tắt
The broadcast nature of radio propagation makes wireless communication extremely vulnerable to eavesdropping attack. In this paper, we investigate the physical layer secrecy performance of multiple-input multiple-output (MIMO) system with transmission antenna selection (TAS) and receiver maximal-ratio combining (MRC) in the presence of a single antenna passive eavesdropper over dissimilar fading channels. We consider two scenarios: 1)The legal / illegal channels are subject to Rayleigh /Nakagami fading, respectively; 2)The legal /illegal channels undergo Nakagami /Rayleigh fading, respectively. Especially, the exact close-form expressions for the probability of non-zero secrecy capacity and the secrecy outage probability using statistical characteristics of the signal-to-noise ratio (SNR) of these scenarios is derived. These expressions allow us to assess the security capability of the considered system.. The numerical result discussion provides practical design of the effect of various system parameters, such as average SNRs, Nakagami fading model, and number of transmission antennas on the secrecy performance of the considered system.
Tài liệu tham khảo
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Dec 31, 2015
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Cách trích dẫn
Nguyen Van Tho*, Van Phu Tuan, Vo Tan Loc, Ha Dac Binh. “Physical Layer Secrecy Performance Analysis of TAS / MRC System over Rayleigh/Nakagami Fading Channels”. Tạp Chí Khoa học Và Công nghệ - Đại học Đà Nẵng, vol 12, số p.h 97.1, Tháng Chạp 2015, tr 43-47, https://jst-ud.vn/jst-ud/article/view/2908.
