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Wireless Personal Communications

Physical Layer Security with Maximal Ratio Combining over Heterogeneous $$\kappa {-}\mu $$ κ - μ and $$\eta {-}\mu $$ η - μ Fading Channels

Yang Gao, Jianhua Ge, Hongwei Gao

Published Aug 7, 2015• 6 citations
Publisher
DOI
10.1007/s11277-015-2996-8

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Physical Layer Security with Maximal Ratio Combining over Heterogeneous κ−μ\kappa {-}\mu κ−μ κ - μ and η−μ\eta {-}\mu η−μ η - μ Fading Channels
This paper presents a investigation on the performance of security under κ-µ shadowed fading channels using the Wyner's classic wiretap model.A better fit was presented for the κ-µ shadowed fading channel curves in relation to other fading models, as Rayleigh and Nakagami-m.Results and analyses are obtained through the Secrecy Outage Probability, the Strictly Positive Secrecy Capacity and Average Secrecy Capacity curves by varying the intruder and main channel characteristics.Also, some types of diversity techniques are analysed as the Select Combining, the Maximum Ratio Combining and the MIMO with the κ-µ shadowed fading channel to obtain safer environments.
In this paper, we consider the secure data transmission over α-η-κ-μ fading channels, which are recently proposed to encompass nearly all the well-known statistical models adopted in the literature. In particular, we address the secrecy performance in terms of the average secrecy capacity (ASC) and the secrecy outage probability (SOP), for which novel analytical expressions are derived. Simulation results verify the analysis and demonstrate the impact of the physical parameters on the secrecy performance of this new channel fading model.
Physical Layer Security Over α\alphaα - κ\kappaκ - μ\muμ and α\alphaα - η\etaη - μ\muμ Fading Channels
In this correspondence, the physical layer security of wireless systems under generalized α-κ-μ and α-η-μ fading with arbitrary fading parameters is analyzed in terms of the secrecy outage probability (SOP). To this end, novel analytical expressions for the lower bound of the SOP are derived. Moreover, an asymptotic secrecy analysis is investigated for each corresponding SOP to get the secrecy diversity gain. Monte Carlo simulations are provided to assess the accuracy of the proposed analytical framework.