  The common jamming mode in wireless communication is band barrage jamming,
which is controllable and difficult to resist. Although this method is simple
to implement, it is obviously not the best jamming waveform. Therefore, based
on the idea of adversarial examples, we propose the adversarial jamming
waveform, which can independently optimize and find the best jamming waveform.
We attack QAM with adversarial jamming and find that the optimal jamming
waveform is equivalent to the amplitude and phase between the nearest
constellation points. Furthermore, by verifying the jamming performance on a
hardware platform, it is shown that our method significantly improves the bit
error rate compared to other methods.
