Security performance analysis of SIMO relay systems over Composite Fading Channels

• Jiangfeng Sun,
• Hongxia Bie,
• Xingwang Li,

Vol. 14, No. 6, June 30, 2020
10.3837/tiis.2020.06.018, Download Paper (Free):

• Cooperative relay
• composite fading
• Performance Analysis
• physical layer security
• decode-and-forward

Abstract

In this paper, we analyze the secrecy performance of single-input multiple-output (SIMO) relay systems over κ-μ shadowed fading channels. Based on considering relay model employing decode-and-forward (DF) protocol, two security evaluation metrics, namely, secure outage probability (SOP) and probability of strictly positive secrecy capacity (SPSC) are studied, for which closed-form analytical expressions are derived. In addition, Monte Carlo results prove the validity of the theoretical derivation. The simulation results confirm that the factors that enhance the security include large ratio of (),DEμμ, (),DEmm, (),DELL and small ratio of (),DEkk under the high signal-to-noise ratio regime.

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