Ergodic Secrecy Sum Rate Analysis of a Two-Way Relay NOMA System
Mahendra K. Shukla, Ha H. Nguyen
Abstract
In this letter, we investigate the ergodic secrecy sum rate of a two-way relay NOMA system. In particular, by considering decode-and-forward signal processing at the relay and selection combining at the eavesdropper, we derive a tight closed-form ergodic secrecy sum rate expression for the considered system. We demonstrate effects of the main link and eavesdropper link on the ergodic secrecy sum rate. The results reveal that the ergodic secrecy sum rate performance degrades when the eavesdropper is closer to one of the users. Numerical and simulation results corroborate our theoretical findings.
Topics & Concepts
Ergodic theorySecrecyRelayNomaComputer scienceExpression (computer science)Computer networkMathematicsTelecommunications linkComputer securityPower (physics)PhysicsMathematical analysisProgramming languageQuantum mechanicsAdvanced Wireless Communication TechnologiesWireless Communication Security TechniquesWireless Signal Modulation Classification