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• W3092400441 abstract "In this paper, we evaluate the uplink spectral efficiency (SE) of a single-cell massive multiple-input-multiple-output (MIMO) system with distributed jammers. We define four different attack scenarios and compare their impact on the massive MIMO system as well as on a conventional single-input-multiple-output (SIMO) system. More specifically, the jammers attack the base station (BS) during both the uplink training phase and data phase. The BS uses either least squares (LS) or linear minimum mean square error (LMMSE) estimators for channel estimation and utilizes either maximum-ratio-combining (MRC) or zero-forcing (ZF) decoding vectors. We show that ZF gives higher SE than MRC but, interestingly, the performance is unaffected by the choice of the estimators. The simulation results show that the performance loss percentage of massive MIMO is less than that of the SIMO system. Moreover, we consider two types of power control algorithms: jamming-aware and jamming-ignorant. In both cases, we consider the max-min and proportional fairness criteria to increase the uplink SE of massive MIMO systems. We notice numerically that max-min fairness is not a good option because if one user is strongly affected by the jamming, it will degrade the other users' SE as well. On the other hand, proportional fairness improves the sum SE of the system compared with the full power transmission scenario." @default.
• W3092400441 created "2020-10-15" @default.
• W3092400441 creator A5013718533 @default.
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• W3092400441 date "2021-01-01" @default.
• W3092400441 modified "2023-10-09" @default.
• W3092400441 title "Is Massive MIMO Robust Against Distributed Jammers?" @default.
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• W3092400441 doi "https://doi.org/10.1109/tcomm.2020.3028552" @default.
• W3092400441 hasPublicationYear "2021" @default.
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