Results 41 to 50 of about 18,041 (194)
Secure Transmission in Multi-Cell Massive MIMO Systems
, 2014 In this paper, we consider physical layer security provisioning in multi-cell massive multiple-input multiple-output (MIMO) systems. Specifically, we consider secure downlink transmission in a multi-cell massive MIMO system with matched-filter precoding ...
Bhargava, Vijay K. +2 more
core +1 more source
Secure Massive MIMO Transmission in the Presence of an Active Eavesdropper [PDF]
, 2015 In this paper, we investigate secure and reliable transmission strategies for multi-cell multi-user massive multiple-input multiple-output (MIMO) systems in the presence of an active eavesdropper.
Caire, Giuseppe +4 more
core +3 more sources
Effects of CSI Knowledge on Secrecy of Threshold-Selection Decode-and-Forward Relaying
IEEE Access, 2017 This paper considers secrecy of a three node cooperative wireless system in the presence of a passive eavesdropper. The threshold-selection decode-and-forward relay is considered, which can decode the source message correctly only if a predefined signal ...
Chinmoy Kundu +5 more
doaj +1 more source
Information, 2021 Non-orthogonal multiple access (NOMA) and wireless energy harvesting are two promising technologies for improving spectral efficiency and energy efficiency, respectively.
Yuan Ren +3 more
doaj +1 more source
Physical Layer Security for Massive MIMO Systems Impaired by Phase Noise
, 2016 In this paper, we investigate the impact of phase noise on the secrecy performance of downlink massive MIMO systems in the presence of a passive multiple-antenna eavesdropper.
Bhargava, Vijay K. +2 more
core +1 more source
Secrecy Balancing over Two-User MISO Interference Channels with Rician Fading
International Journal of Antennas and Propagation, 2013 This paper considers a 2-user multiple-input single-output (MISO) interference channel with confidential messages (IFC-CM), in which the Rician channel model is assumed.
Jiqing Ni +5 more
doaj +1 more source
Econometrics at the Extreme: From Quantile Regression to QFAVAR1
Journal of Economic Surveys, EarlyView.ABSTRACT This paper surveys quantile modelling from its theoretical origins to current advances. We organize the literature and present core econometric formulations and estimation methods for: (i) cross‐sectional quantile regression; (ii) quantile time series models and their time series properties; (iii) quantile vector autoregressions for ...
Stéphane Goutte +4 more
wiley +1 more source
IEEE Access, 2018 Transmit beamforming (TBF) has been proposed as an effective approach to enhance the security performance of multiple-input single-output (MISO) wiretap channels. However, this secrecy enhancement comes at some expenses, such as power consumption and the
Morteza Soltani, Huseyin Arslan
doaj +1 more source
Impact of Imperfect Angle Estimation on Spatial and Directional Modulation
IEEE Access, 2020 In this paper, we investigate the impact of imperfect angle estimation (IAE) on spatial and directional modulation (SDM) systems, assuming that the signal experiences line of sight (LoS) propagation.
Hongyan Zhang +3 more
doaj +1 more source
Journal of Communications Software and Systems, 2023 In this paper, Time-Reversal (TR) pre-coding with Artificial Noise (AN) injection is proposed to enhance the physical layer security (PLS) performance in orthogonal Frequency Division Multiplexing-Differential Chaos Shift Keying (OFDM-DCSK) system, which
Dhuha Hussein Hameed, Fadhil S. Hasan
doaj +1 more source