Impact of Timing Errors on the Performance of Double Iteration Anti-jamming Technology in Physical Layer Security

In physical layer security, the double iteration anti-jamming technology based on power cognition can effectively cancel the co-channel interference used in confusing eavesdroppers. This paper analyzes the theoretical performance of double iteration method and the impact of timing errors in receivers on the performance of double iteration anti-jamming technology. Theoretical and simulation results show that, over the AWGN channel, the timing errors of 0.2 chips and 0.4 chips degrade the system performance by about 1 dB and 5 dB respectively, in the interference priority mode. Thus the system performance is sensitive to the timing errors.