Secrecy capacity analysis of bi-static backscatter communication systems

The rapid adoption of battery-free internet-of-things (IoT) sensors in multiple environments ranging from agriculture to wildlife surveillance, has seen increased research interest backscatter communication (BSC) technology. BSC is viewed as a potential technology enable the further spread sustainable IoT applications and scenarios where bulkier-sized battery-powered devices would be unsuitable. In this study, we investigate secrecy capacity bi-static network presence malicious eavesdropper. proposed system consists reader, devices, an We derive closed-form strictly positive (SPSC) expressions ergodic (ESC) for reader. Monte Carlo simulations verify exact expressions.