Results 91 to 100 of about 104,178 (180)

Quantum Network Infrastructure

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 2, February 2025.
Quantum computing presents a threat to secure communication. Consequently, novel methods are investigated to address this global challenge, namely post quantum cryptography (PQC) and quantum key distribution (QKD). The image represents the distribution of a wavefunction over the entire world by using satellites in orbit.
Lisa Wörner   +7 more
wiley   +1 more source

Single-User Performance of Uplink DS-CDMA using Relay-Assisted Diversity [PDF]

open access: yes, 2006
In a wireless system with distributed mobile users, several mobile users may cooperate with each other in order to achieve the transmit diversity. In this contribution we investigate the single-user performance of an uplink direct-sequence code-division ...
Fang, W, Yang, L-L, Hanzo, L
core   +2 more sources

Distributed Matching Algorithms: Maximizing Secrecy in the Presence of Untrusted Relay [PDF]

open access: yesRadioengineering, 2017
In this paper, we propose a secrecy sum-rate maximization based matching algorithm between primary transmitters and secondary cooperative jammers in the presence of an eavesdropper.
B. Ali   +3 more
doaj  

Physical Layer Security in an Untrusted Energy Harvesting Relay Network

open access: yesIEEE Access, 2019
The security performance in an amplify-and-forward dual-hop untrusted relay network is considered. It is assumed that the source and multiple destinations are equipped with multiple antennas, and the information transmission is aided by a single-antenna ...
Hui Shi   +5 more
doaj   +1 more source

Modeling and testing of digital protection relay for an induction motor [PDF]

open access: yes, 2010
The project details the modelling of the induction motor SEL701 Relay in PowerFactory. In order to prove operational reliability, both off-line and on-line testing were implemented to verify the characteristic curve of the relay by measuring trip times ...
Cho, Sungmin
core  

Secrecy in Untrusted Networks

open access: yes, 2003
We investigate the protection of migrating agents against the untrusted sites they traverse. The resulting calculus provides a formal framework to reason about protection policies and security protocols over distributed, mobile infrastructures, and aims ...
Bugliesi, M.   +3 more
core   +2 more sources

Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors

open access: yesIEEE Access, 2018
The secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal ...
Lihua Gong   +3 more
doaj   +1 more source

Secrecy Rate-Optimum Energy Splitting for an Untrusted and Energy Harvesting Relay Network

open access: yesIEEE Access, 2018
In this paper, a destination-assisted-jamming-based secure transmission is devised for an untrusted and energy harvesting relay network. In the proposed scheme, both source and destination split their energies into two parts for energy harvesting at the ...
Rugui Yao   +5 more
doaj   +1 more source

Joint Power Allocation at the Base Station and the Relay for Untrusted Relay Cooperation OFDMA Network

open access: yesInternational Journal of Antennas and Propagation, 2015
The secure communication that multiple OFDMA-based cell-edge mobile stations (MS) can only transmit confidential messages to base station (BS) through an untrusted intermediate relay (UR) is discussed.
Weiheng Jiang, Wenjiang Feng
doaj   +1 more source

Joint power control for untrusted relay cooperation-based confidential communication

open access: yesTongxin xuebao, 2014
The scenario that multiple cell-edge mobile stations (MS) all without direct-links to the base station (BS) but have confidential messages in the uplink in the presence of untrusted relay (UR) cooperation was considered.In order to implement the secure ...
Wen-jiang FENG   +3 more
doaj   +2 more sources

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