Maximum-likelihood FFH/MFSK receiver with MTJ and PBNJ over frequency-selective Rayleigh fading channels plus timing and frequency offsets

摘要

The impact of timing and frequency offsets, as well as the composite effects of multitone jamming (MTJ) and partial-band noise jamming (PBNJ) on bit-error rate (BER) performance of an fast frequency-hopped (FFH) system are investigated. Both the desired signal and MTJ are assumed to undergo frequency-selective Rayleigh fading. Analytical BER expressions for the FFH maximum-likelihood (ML) receiver are derived and validated by simulation results. Numerical results show that the timing and frequency offsets significantly degrade performance of the FFH ML receiver. It is also shown that the proposed ML receiver can suppress the MTJ more effectively than the PBNJ.