Optimal Jamming Analysis Against Single/Multi Carrier Digital Modulation

Jamming attacks can significantly impact the performance of wireless communication systems.Optimal jamming theory under Additive White Gaussian Noise(AWGN)channel against digital modulation is mainly studied in this paper.Based on the background of high efficiency electronic warfare and a lack of theoretical analysis of optimal jamming,this paper aiming to analyze binary signals with single-carrier,multi-ary signals with single-carrier such as Quadrature Amplitude Modulation(QAM)and Orthogonal Frequency Division Multiplexing(OFDM)system under the AWGN channel.Mathematical model of the bit error rate(BER)of the communication system corrupted by correlated jamming is derived and a software simulation model is established.According to the above formula,the above signal is mathematically derived by using the method of convex optimization and the optimal jamming modulation of the above signal is obtained.Firstly,the BER formula of Binary Phase Shift Keying(BPSK),Binary Amplitude Shift Keying(2ASK)and Binary Frequency Shift Keying(2FSK)corrupted by the correlated jamming is proposed in this paper.Secondly,the BER of multilevel single-carrier signals corrupted by correlated jamming is analyzed.The formula of bit error rate(BER)against Quadrature Amplitude Modulation(QAM)under correlated jamming is proposed.The optimal jamming modulation against 16-QAM is studied based on the method of convex analysis.The transmission performance of 16-QAM communication system under optimal jamming are studied.Factors like phase shift and asynchronous are also considered.And based on the above analysis,some signal's optimal jamming modulation is given.Finally,the optimal jamming modulation of the OFDM modulated communication system signal is studied.By studying the receiving and sending end model of OFDM system and the overall modulation flow,the BER model of OFDM signal without intentional jamming is analyzed.Based on the above analysis,the BER model of an OFDM system corrupted by correlated jamming is proposed.The optimal jamming modulation of the OFDM system is listed either.