Bit Error Rate Analysis of jamming for OFDM systems

The bit error rate (BER) analysis of various jamming techniques for orthogonal frequency-division multiplexing (OFDM) systems is given in both analytical form and software simulation results. Specifically, the BER performance of barrage noise jamming (BNJ), partial band jamming (PBJ) and multitone jamming (MTJ) in time-correlated Rayleigh fading channel with additive white gaussian noise (AWGN) has been investigated. In addition, two novel jamming methods - optimal-fraction PBJ and optimal-fraction MTJ for OFDM systems are proposed with detailed theoretical analysis. Simulation results validate the analytical results. It is shown that under the A WGN channel without fading, the optimal-fraction MTJ always gives the best jamming effect among all the jamming techniques given in this paper, while in Rayleigh fading channel the optimal-fraction MTJ can achieve acceptable performance. Both analysis and simulation indicate that the proposed optimal-fraction MTJ can be used to obtain improved jamming effect under various channel conditions with low complexity for OFDM systems.