Results 21 to 30 of about 5,188,593 (275)

Intelligent reflecting surface-aided MIMO secrecy rate maximization

open access: yesICT 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   +1 more source

Secrecy Rate Optimization for Secure Multicast Communications [PDF]

open access: yesIEEE Journal of Selected Topics in Signal Processing, 2016
Recently, physical layer security has been recognized as a new design paradigm to provide security in wireless networks. In contrast to the existing conventional cryptographic methods, physical layer security exploits the dynamics of fading channels to enhance security of wireless communications.
Kanapathippillai Cumanan   +3 more
openaire   +2 more sources

Ergodic Secrecy Rate Analysis and Optimal Power Allocation for Symbiotic Radio Networks

open access: yesIEEE 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

Secrecy and Freemasonry

open access: yes, 2022
This chapter discusses the use of secrecy within the Order of Freemasons during its formative period during the eighteenth century. More specifically, it will, first, deal with the function of secrecy in relation to initiation and experiential knowledge.
Henrik Bogdan, Bogdan, Henrik,
core   +1 more source

On the secrecy rate region for the interference channel

open access: yes2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
This paper studies interference channels with security constraints. The existence of an external eavesdropper in a two-user interference channel is assumed, where the network users would like to secure their messages from the external eavesdropper. The cooperative binning and channel prefixing scheme is proposed for this system model which allows users
Onur Ozan Koyluoglu, Hesham El Gamal
openaire   +2 more sources

Secrecy Rate Analysis of Opportunistic User Scheduling in Uplink Networks With Potential Eavesdroppers

open access: yesIEEE 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

Secrecy Rate Optimizations for MIMO Communication Radar [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2018
In this paper, we investigate transmit beampattern optimization techniques for a multiple-input multiple-output radar in the presence of a legitimate communications receiver and an eavesdropping target. The primary objectives of the radar are to satisfy a certain target-detection criterion and to simultaneously communicate safely with a legitimate ...
Anastasios Deligiannis   +3 more
openaire   +3 more sources

Secrecy Communication with Security Rate Measure

open access: yesCoRR, 2015
10 pages, submitted to IEEE ITW 2015.
Lei Yu 0003   +2 more
openaire   +2 more sources

Achievable Secrecy Rates of an Energy Harvesting Device [PDF]

open access: yesIEEE 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 receiver and a malicious eavesdropper. In particular, because of the energy constraints and the channel
BIASON, ALESSANDRO   +2 more
openaire   +2 more sources

A Feedback-Based Transmission for Wireless Networks with Energy and Secrecy Constraints [PDF]

open access: yes, 2011
This paper investigates new transmission techniques for clustered feedback-based wireless networks that are characterized by energy and secrecy constraints.
McLaughlin, Stephen; id_orcid   +11 more
core   +1 more source

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