Physical Layer Security in Finite Blocklength Massive IoT with Randomly Located Eavesdroppers
This addresses security risks in dense IoT deployments, but it is incremental as it builds on existing stochastic geometry and physical layer security models.
The paper tackled the problem of securing short-packet uplink transmissions in massive IoT networks against randomly located eavesdroppers, deriving analytical expressions for secure success probability, secrecy outage probability, and secrecy throughput to characterize the impact of stochastic interference, fading, and eavesdropper uncertainty under finite blocklength constraints.
This paper analyzes the physical layer security performance of massive uplink Internet of Things (IoT) networks operating under the finite blocklength (FBL) regime. IoT devices and base stations (BS) are modeled using a stochastic geometry approach, while an eavesdropper is placed at a random location around the transmitting device. This system model captures security risks common in dense IoT deployments. Analytical expressions for the secure success probability, secrecy outage probability and secrecy throughput are derived to characterize how stochastic interference, fading and eavesdropper spatial uncertainty interact with FBL constraints in short packet uplink transmissions. Numerical results illustrate key system behavior under different network and channel conditions.