Results 41 to 50 of about 2,245 (194)
Securing Downlink Massive MIMO-NOMA Networks with Artificial Noise
, 2019 In this paper, we focus on securing the confidential information of massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks by exploiting artificial noise (AN). An uplink training scheme is first proposed with minimum
Dobre, Octavia A. +3 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
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
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, 2020 This paper studies the design and performance analysis of relay-assisted satellite free-space optics (FSO) quantum key distribution (QKD) systems for secure vehicular networks.
Minh Quang Vu +3 more
doaj +1 more source
Trading Zones Between Thick and Thin: Anthropological Description as Scaffold or Mosaic
American Anthropologist, Volume 128, Issue 1, Page 159-170, March 2026.ABSTRACT Referring to the work of historian of science Peter Galison, I argue that anthropology requires thin description as an essential counterpart for thick description. Thin accounts provide the scaffolding within which thick descriptions sit. Galison uses the idea of a “trading zone” connecting different communities who, despite their differences (
David Zeitlyn
wiley +1 more source
Physical Layer Security Using Two-Path Successive Relaying
Sensors, 2016 Relaying is one of the useful techniques to enhance wireless physical-layer security. Existing literature shows that employing full-duplex relay instead of conventional half-duplex relay improves secrecy capacity and secrecy outage probability, but this ...
Qian Yu Liau, Chee Yen Leow, Zhiguo Ding
doaj +1 more source
IEEE Access, 2022 A frequency domain time-reversal (TR) precoder is proposed to perform physical layer security in single-input single-output (SISO) systems using orthogonal frequency-division multiplexing (OFDM) and artificial noise (AN) injection. This scheme guarantees
Sidney J. Golstein +4 more
doaj +1 more source