A Study on Pseudo CRS Signal Jamming Attacks in LTE Network

LTE is widely used and becoming the primary communication standard in the whole world. But its vulnerability to hostile interference, which is an interesting issue concerned by the scholars, should be paid more attention to. Some smart jammers, especially by means of pseudo signals, can easily attack against LTE network. In order to analyze the impact of pseudo CRS signals on the performance of channel estimation, two pseudo CRS signal jamming schemes are proposed in this paper, i.e., time-pseudo CRS scheme and phase-pseudo CRS scheme. Simulation results prove that the phase-pseudo CRS leads to serious influences to channel estimation which will have negative effects on data demodulation. From the evaluation results of JSR-MSE, the sensitivity to pseudo CRS from high to low is LS-W, LS-L and MMSE-W algorithm.