Results 31 to 40 of about 780,589 (283)
Directional Modulation-Enhanced Multiple Antenna Arrays for Secure and Precise Wireless Transmission
Sensors, 2019 Directional modulation (DM) technique has the ability to enhance the physical layer security (PLS) of wireless communications. Conventional DM schemes are usually based on a single antenna array with the basic assumption that eavesdroppers (Eves) and ...
Wei Zhang +4 more
doaj +1 more source
Covert Wireless Communication With Artificial Noise Generation
IEEE Transactions on Wireless Communications, 2018 Covert communication conceals the transmission of the message from an attentive adversary. Recent work on the limits of covert communication in additive white Gaussian noise (AWGN) channels has demonstrated that a covert transmitter (Alice) can reliably transmit a maximum of $\mathcal{O}\left(\sqrt{n}\right)$ bits to a covert receiver (Bob) without ...
Ramin Soltani +4 more
openaire +2 more sources
Cooperative Secret Communication with Artificial Noise in Symmetric Interference Channel
, 2010 We consider the symmetric Gaussian interference channel where two users try to enhance their secrecy rates in a cooperative manner. Artificial noise is introduced along with useful information.
Mo, Jianhua, Tao, Meixia, Zhu, Jingge
core +1 more source
New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights [PDF]
, 2006 We report measurements and analysis of the voltage noise due the to vortex motion, performed in superconducting Niobium micro-bridges. Noise in such small systems exhibits important changes from the behavior commonly reported in macroscopic samples.
Domenges, B. +5 more
core +2 more sources
IEEE AccessInternet of things (IoT) networks connect sensing devices to the Internet for tasks like tracking, monitoring, and data analysis. However, the large data generated, especially in resource-heavy services, challenges energy efficiency (EE) and security ...
Kimchheang Chhea, Jung-Ryun Lee
doaj +1 more source
Fronthaul Quantization as Artificial Noise for Enhanced Secret Communication in C-RAN
, 2017 This work considers the downlink of a cloud radio access network (C-RAN), in which a control unit (CU) encodes confidential messages, each of which is intended for a user equipment (UE) and is to be kept secret from all the other UEs.
Park, Seok-Hwan +2 more
core +1 more source
DronesThis paper proposes a novel joint precoding and artificial noise design framework for generalized spatial directional modulation (AN-GSDM) in unmanned aerial vehicle (UAV) communications, aimed at enhancing the physical-layer security of downlink UAV ...
Xianglu Li +6 more
doaj +1 more source
On physical‐layer security for primary system in underlay cognitive radio networks
IET Networks, 2018 In this study, the authors consider the physical‐layer security for transmission in underlay cognitive radio networks, where consisting of a primary source–destination pair, a secondary transmitter–receiver pair and a common eavesdropper (E). To transmit
Ping Xie +5 more
doaj +1 more source
Improving Secrecy for Correlated Main and Wiretap Channels Using Cooperative Jamming
IEEE Access, 2019 To reduce the secrecy loss due to the correlation between main and wiretap channels, this paper introduces a cooperative jamming relay to degrade the reception at the eavesdropper.
Sai Xu +5 more
doaj +1 more source
Propagation of numerical noise in particle-in-cell tracking
, 2015 Particle-in-cell (PIC) is the most used algorithm to perform self-consistent tracking of intense charged particle beams. It is based on depositing macro-particles on a grid, and subsequently solving on it the Poisson equation.
Franchetti, Giuliano, Kesting, Frederik
core +2 more sources