Optimum Design for Robustness of Frequency Hopping System

Engineering systems rely on robust, continuous, and resilient communications. To ensure robustness, communication systems should operate in situations of intentional interference. Specifically, cognitive radio frequency interferences (RFI) for a frequency hopping system will be demonstrated to maximize probability of interception, while probability of RFI detection is maintained. Three test conditions of power, distance, and the number of occupied sub-channels are the parameters of trade studies. A closed-form formulation of interception probability is presented under general Nakagami-m fading channels in the condition of intentional interference. Our RFI maximum interception method provides a solution for system's testing, signals deconfliction, and secure communications. Lastly, the proposed methodology is compared to baseline methods where average power either on the whole bandwidth or single random channel impeded communications. Results demonstrate that the proposed optimum design outperforms the baseline methods.