Frequency offsets based performance analysis of FFH/BFSK product-combining receiver

This study investigates how frequency offsets of multitone jamming affect the fast frequency-hopped binary frequency shift keying (FFH/BFSK) product-combining receiver (PCR) under additive white Gaussian noise (AWGN). We demonstrate the average bit-error-rate (BER) expressions of the FFH/BFSK PCR and the average BER expressions of an FFH/BFSK spread-spectrum (SS) communication system with frequency offsets of multitone jamming for the sake of understanding the simulation results better. Simulation results show that BER performance of the FFH/BFSK PCR with diversity under the worst case multitone jamming (MTJ) and AWGN suffers from multitone jamming's frequency offsets when the jamming power is moderate, which is validated by several simulations with different frequency offsets configured in multitone jamming. Therefore, we can combat an FFH/BFSK PCR under multitone jamming with the help of frequency offsets of multitone jamming.