Results 11 to 20 of about 5,815,781 (251)

Secure Multiuser Scheduling for Hybrid Relay-Assisted Wireless Powered Cooperative Communication Networks With Full-Duplex Destination-Based Jamming

open access: yesIEEE Access, 2021
In this paper, we investigate secure communication in a hybrid relay (HR)-assisted wireless powered cooperative communication network (WPCCN), where an eavesdropper tries to intercept the data transmitted by a source user and the HR simultaneously.
Xiaohui Shang   +4 more
doaj   +1 more source

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

Physical Layer Security of Dual-Hop Hybrid FSO-mmWave Systems

open access: yesIEEE Access, 2023
Hybrid free-space optical (FSO) and millimeter wave (mmWave) systems have been proposed as an efficient solution to improve spectral efficiency and maintain link reliability.
Saud Althunibat   +4 more
doaj   +1 more source

RIS-Aided Mixed RF-FSO Wireless Networks: Secrecy Performance Analysis With Simultaneous Eavesdropping

open access: yesIEEE Access, 2023
In order to meet the demands of diverse services within sixth-generation networks across a range of industries, numerous approaches are being employed to address notable signal degradation resulting from channel obstruction, particularly in the realms of
Md. Mijanur Rahman   +5 more
doaj   +1 more source

Physical Layer Security Analysis of Multi-Hop Hybrid RF/FSO System in Presence of Multiple Eavesdroppers

open access: yesIEEE Photonics Journal, 2022
In this paper, the physical layer security (PLS) analysis for a decode-and-forward (DF) protocol based multi-hop hybrid radio frequency (RF)/ free space optics (FSO) is presented.
Dipti R. Pattanayak   +4 more
doaj   +1 more source

Coding for Wireless Broadcast and Network Secrecy [PDF]

open access: yes, 2010
In the first part of this thesis, we exploit wireless broadcast across different layers in wireless networks. The wireless channel is distinguished by its broadcast nature.
Cui, Tao
core   +1 more source

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

Secure Transmission of Cooperative Zero-Forcing Jamming for Two-User SWIPT Sensor Networks

open access: yesSensors, 2018
In this paper, the secrecy performance of the two-user simultaneous wireless information and power transfer (SWIPT) sensor networks is studied and a novel secure transmission scheme of cooperative zero-forcing (ZF) jamming is proposed.
Xuanxuan Tang   +5 more
doaj   +1 more source

Rate Adaption for Secure HARQ-CC System with Multiple Eavesdroppers

open access: yesEntropy, 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

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

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