Power Control for Resilient Communication Systems with a Secret-Key Budget

Resilience and power consumption are important performance metrics for many modern communication systems, and it is therefore important to define, analyze, and optimize them. In this work, we consider a wireless communication system with secret-key generation, in which the secret-key bits are added to and used from a pool of available key bits. We propose novel resilience metrics for the survivability of such a system and analyze them. In addition, we investigate the problem of minimizing the transmit power such that a specified resilience is guaranteed. These results can be used directly by designers of such systems to optimize the system parameters for the desired performance in terms of reliability and resilience.