Impact of Fading Correlation and Finite-Blocklength Regimes on Secrecy

This paper examines secrecy performance of a three-point system–where a main channel and a wiretap channel are present—under outdated channel state information (oCSI), correlated Rayleigh fading and finite-blocklength (FBL) regimes. A main channel and a wiretap channel experience oCSI severity, which impacts the system's average secrecy capacity (ASC) and secrecy outage probability (SOP). Compact expressions for the ASC and SOP will be offered. Hypothetical bounds give fresh insight into secrecy performance. Impact of FBL regimes on secrecy performance is also shown.