Direction‐based jamming detection and suppression in mmWave massive MIMO networks

In this paper, we study the problem of physical layer security in uplink millimeter-wave massive multiple-input multiple-output (MIMO) networks and propose a jamming detection suppression method. The proposed method is based on directional information received signals at base station antenna array. can accurately detect both existence direction jammer using pilot training phase. obtained then exploited to develop channel estimator that excludes jammer's angular subspace from signals. estimated used for designing combiner able effectively cancel out deliberate interference jammer. By numerical simulations, evaluate performance terms correct probability false alarm show its effectiveness when power substantially lower than user's power. Also, our results achieve very close spectral efficiency as case no network