Results 21 to 30 of about 8,632 (260)

Virtual full-duplex buffer-aided relay selection schemes for secure cooperative wireless networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
This paper considers secure communication in buffer-aided cooperative wireless networks in the presence of one eavesdropper, which can intercept the data transmission from both the source and relay nodes.
Jiayu Zhou, Deli Qiao, Haifeng Qian
doaj   +1 more source

Secrecy rate maximization in multi-IRS mmWave networks [PDF]

open access: yesPhysical Communication, 2021
Abstract This paper investigates the problem of improving security at the physical layer of a Millimeter Wave (mmWave) network equipped with multiple Intelligent Reflecting Surfaces (IRSs). In this network, the IRSs help the Base Station (BS) in transmitting its signal to the desired user and at the same time improving the physical layer security of ...
Anahid Rafieifar   +1 more
openaire   +1 more source

Physical Layer Security Design for FDD IM-OTFS Transmissions Based on Secure Mapping

open access: yesIEEE Access, 2023
In this paper, a physical layer security scheme is proposed for index modulation aided orthogonal time frequency space (IM-OTFS) modulation systems working in Frequency Division Duplex (FDD) mode.
Kejia Ma   +3 more
doaj   +1 more source

PERFORMANCE ANALYSIS OF COOPERATION SCHEMES IN EAVESDROPPER ASSISTED RELAY CHANNEL [PDF]

open access: yesICTACT Journal on Communication Technology, 2014
The prominence of the wireless communication has been urging the monotonically increasing demand of security and privacy. In wireless systems, the notion of perfect secrecy of information with respect to illegitimate nodes can be ensured via physical ...
Vaibhav Kumar Gupta, Poonam Jindal
doaj  

Secure Massive MIMO Downlink With Low-Resolution ADCs/DACs in the Presence of Active Eavesdropping

open access: yesIEEE Access, 2020
In this paper we study the secrecy performance of a downlink massive multiple-input multiple-output (MIMO) system in the presence of pilot spoofing attack (PSA). Specifically, the base station (BS), which is equipped with low-resolution analog-to-digital
Qian Xu, Pinyi Ren
doaj   +1 more source

On Secrecy Outage Probability and Average Secrecy Rate of Large‐Scale Cellular Networks

open access: yesWireless Communications and Mobile Computing, 2018
We investigate the secrecy performance in large‐scale cellular networks, where both Base Stations (BSs) and eavesdroppers follow independent and different homogeneous Poisson point processes (PPPs). Based on the distances between the BS and user, the intended user selects the nearest BS as serving BS to transmit the confidential information.
Liwei Tao   +3 more
openaire   +1 more source

Effective Secrecy Rate for a Downlink NOMA Network [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2019
In this paper, a novel approach is introduced to study the achievable delay-guaranteed secrecy rate, by introducing the concept of the effective secrecy rate (ESR). This study focuses on the downlink of a non-orthogonal multiple access (NOMA) network with one base station, multiple single-antenna NOMA users and an eavesdropper.
Wenjuan Yu 0001   +4 more
openaire   +4 more sources

Jamming-Aided Secrecy Performance in Secure Uplink NOMA System

open access: yesIEEE Access, 2020
A novel secrecy scenario of uplink non-orthogonal multiple access (NOMA) along with cooperative jammer(s) to improve secrecy performance is studied in this work.
Kaiwei Jiang, Weihua Zhou, Lingjie Sun
doaj   +1 more source

Secrecy & Rate Adaptation for secure HARQ protocols [PDF]

open access: yes2013 IEEE Information Theory Workshop (ITW), 2013
This paper is dedicated to the study of HARQ protocols under a secrecy constraint. An encoder sends information to a legitimate decoder while keeping it secret from the eavesdrop-per. Our objective is to provide a coding scheme that satisfies both reliability and confidentiality conditions.
Maël Le Treust   +2 more
openaire   +1 more source

Downlink Physical Layer Security Transmission Method Based on Zero-sum Game [PDF]

open access: yesJisuanji gongcheng, 2018
In the Multi-downlink network,the interference among nonorthogonal channels and the malicious interference makes destination nodes not meet the demand of Quality of Service(QoS).So a security transmission method based on zero-sum game model is proposed ...
XU Zhaoye,LU Ruimin
doaj   +1 more source

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