QoS-aware energy-efficient attacks in IoT: Eavesdropping and jamming with power optimization for single and multicast receiver scenarios

As the number of devices in the Internet of Things (IoT) continues to grow, security threats from suspicious communications have become a critical concern. This paper proposes a quality-of-service (QoS)-aware energy-efficient attack scheme that degrades the performance of suspicious devices through eavesdropping and jamming while preserving the QoS of legitimate devices. The scheme optimizes the attacker’s power to maximize attacker energy efficiency (AEE) under QoS constraints. Additionally, the model is extended to multicast scenarios with multiple legitimate receivers. Analytical and simulation results validate the accuracy of the model, demonstrating the scheme’s effectiveness in achieving high energy efficiency without compromising legitimate QoS.