Direction-Based Jamming Detection and Suppression in mmWave Massive MIMO Networks
Saeed Bagherinejad1, S. Mohammad Razavizadeh

TL;DR
This paper presents a novel direction-based method for detecting and suppressing jamming in mmWave massive MIMO networks, significantly improving security and spectral efficiency under low-power jamming conditions.
Contribution
It introduces a new directional detection technique and a channel estimation approach that effectively cancel jamming interference in uplink mmWave massive MIMO systems.
Findings
High detection accuracy for jammer presence and direction
Effective suppression of jamming with minimal spectral efficiency loss
Performance remains robust even when jammer power is low
Abstract
In this paper, we study the problem of physical layer security in the uplink of millimeter-wave massive multiple-input multiple-output (MIMO) networks and propose a jamming detection and suppression method. The proposed method is based on directional information of the received signals at the base station antenna array. The proposed jamming detection method can accurately detect both the existence and direction of the jammer using the received pilot signals in the training phase. The obtained information is then exploited to develop a channel estimator that excludes the jammer's angular subspace from received training signals. The estimated channel information is then used for designing a combiner at the base station that is able to effectively cancel out the deliberate interference of the jammer. By numerical simulations, we evaluate the performance of the proposed jamming detection…
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