Active Reconfigurable Repeater-Assisted NOMA Networks in Internet-of-Things: Reliability, Security, and Covertness
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F25%3A10257534" target="_blank" >RIV/61989100:27240/25:10257534 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/25:10257534
Result on the web
<a href="https://ieeexplore.ieee.org/document/10766410" target="_blank" >https://ieeexplore.ieee.org/document/10766410</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/JIOT.2024.3503278" target="_blank" >10.1109/JIOT.2024.3503278</a>
Alternative languages
Result language
angličtina
Original language name
Active Reconfigurable Repeater-Assisted NOMA Networks in Internet-of-Things: Reliability, Security, and Covertness
Original language description
In the present paper, we describe a novel active reconfigurable repeater-aided non-orthogonal multiple access networks within the context of the Internet of Things. The study focuses on a scenario, where a source simultaneously transmits public information to an untrusted user and a covert signal to a legitimate user in the surveillance of an external warden or eavesdropper. We develop comprehensive analytical and optimization frameworks to evaluate the reliability, security, and covertness of the proposed system's performance, measuring three respective key metrics: outage probability (OP), secrecy OP (SOP), and detection error probability (DEP). First, we derive exact closed-form and asymptotic expressions for OP, SOP in internal and external eavesdropping scenarios, and DEP in external monitoring situations. Based on an asymptotic analysis of the OP, we propose two optimization methods for power allocation (PA) to achieve fairness in outage among users: a convex approximation method and an approximate closed-form solution. We then introduce an alternative method for optimizing PA to improve SOP in both eavesdropping scenarios while maintaining minimal OP requirements. In addition, we propose an effective approach for determining the warden's detection threshold to minimize the DEP, with low complexity and fast convergence, thereby improving communications covertness. Finally, we validate the theoretical and optimization frameworks through extensive Monte-Carlo simulations, exploring the impact of key system parameters on each performance metric. © 2014 IEEE.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20203 - Telecommunications
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Internet of Things Journal
ISSN
2327-4662
e-ISSN
2327-4662
Volume of the periodical
12
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
8759-8772
UT code for WoS article
001453366200029
EID of the result in the Scopus database
2-s2.0-85210921512