Results 1 to 10 of about 139,119 (288)
EURASIP Journal on Wireless Communications and Networking, 2019 We investigate the transmission of a secret message from Alice to Bob in the presence of an eavesdropper (Eve) and many of decode-and-forward relay nodes.
Linda Senigagliesi +2 more
doaj +2 more sources
Intelligent reflecting surface-aided MIMO secrecy rate maximization
ICT Express, 2022 This paper considers the intelligent reflecting surface-aided MIMO secrecy rate maximization. We apply the alternating optimization to maximize the secrecy rate of the MIMO wiretap channels. We first provide the closed-form solution to each subproblem of
Minsik Kim, Daeyoung Park
doaj +2 more sources
Achievable Secrecy Rates of an Energy Harvesting Device [PDF]
IEEE Journal on Selected Areas in Communications, 2016 The secrecy rate represents the amount of information per unit time that can be securely sent on a communication link. In this work, we investigate the achievable secrecy rates in an energy harvesting communication system composed of a transmitter, a ...
Biason, Alessandro +2 more
core +4 more sources
IET Communications, 2021 This paper analyzes the achievable secrecy rate in a millimeter wave (mmWave) ad hoc network with multi‐array antenna transmission in the presence of non‐colluding and colluding eavesdroppers.
Ahmed Fathy Darwesh, Abraham O. Fapojuwo
doaj +1 more source
Rate Adaption for Secure HARQ-CC System with Multiple Eavesdroppers
Entropy, 2020 In this paper, we studied the secure transmission of a hybrid automatic repeat request with chase combining (HARQ-CC) system, under the existence of multiple eavesdroppers and limited latency.
Yue Wu +4 more
doaj +1 more source
Security Analysis of QAM Quantum-Noise Randomized Cipher System
IEEE Photonics Journal, 2020 Applying the quadrature amplitude modulation (QAM) format, quantum-noise randomized cipher (QNRC) systems hide the signal states in quantum phase noise and amplitude noise to prevent eavesdropping. In this paper, based on the traditional wire-tap channel
Yukai Chen +4 more
doaj +1 more source
Ergodic Secrecy Rate Analysis and Optimal Power Allocation for Symbiotic Radio Networks
IEEE Access, 2023 In this paper, we address the challenge of establishing secure communication within a symbiotic radio (SR) network. This network comprises a primary transmitter (PT), a primary receiver (PR), a passive backscatter device (BD), and an eavesdropper (ED ...
Azzam Al-Nahari +4 more
doaj +1 more source
On Secrecy Rate Analysis of MIMO Wiretap Channels Driven by Finite-Alphabet Input [PDF]
, 2012 This work investigates the effect of finite-alphabet source input on the secrecy rate of a multi-antenna wiretap system. Existing works have characterized maximum achievable secrecy rate or secrecy capacity for single and multiple antenna systems based ...
Bashar, Shafi +2 more
core +3 more sources
Secrecy Sum-Rates for Multi-User MIMO Regularized Channel Inversion Precoding [PDF]
, 2012 In this paper, we propose a linear precoder for the downlink of a multi-user MIMO system with multiple users that potentially act as eavesdroppers. The proposed precoder is based on regularized channel inversion (RCI) with a regularization parameter ...
Collings, Iain B. +4 more
core +1 more source
IEEE Access, 2019 In this paper, we investigate two user scheduling algorithms (optimal user and threshold-based user scheduling algorithms) when we consider potential eavesdroppers in an uplink wiretap network. The optimal user scheduling (OUS) algorithm selects the user
Inkyu Bang, Bang Chul Jung
doaj +1 more source