{"title":"Secrecy Performance Analysis of Cooperative NOMA with AF and DF Protocol over Rayleigh Channel","authors":"K. Ashwini, V. K. Jagadeesh","doi":"10.1007/s11277-024-11507-3","DOIUrl":null,"url":null,"abstract":"<p>The article examined the physical layer security of cooperative non-orthogonal multiple access (NOMA) network over Rayleigh fading channels by considering one eavesdropper. Relaying techniques like decode-and-forward (DF) and amplify–and–forward (AF) protocols are analyzed. The secrecy rate and secrecy outage probability of the system considering NOMA-AF and NOMA-DF systems were derived. Two cases were considered for the analysis, one system model where a near user operates as relay, forwarding the signal to far user; another where a relay is used in forwarding the signal to both users. Simulation results were obtained for different values of power allocation coefficients. These results show that the system model proposed in case 2 provides a better secrecy performance result than NOMA based models proposed in case 1 under both relaying techniques.</p>","PeriodicalId":23827,"journal":{"name":"Wireless Personal Communications","volume":"23 1","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wireless Personal Communications","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1007/s11277-024-11507-3","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
The article examined the physical layer security of cooperative non-orthogonal multiple access (NOMA) network over Rayleigh fading channels by considering one eavesdropper. Relaying techniques like decode-and-forward (DF) and amplify–and–forward (AF) protocols are analyzed. The secrecy rate and secrecy outage probability of the system considering NOMA-AF and NOMA-DF systems were derived. Two cases were considered for the analysis, one system model where a near user operates as relay, forwarding the signal to far user; another where a relay is used in forwarding the signal to both users. Simulation results were obtained for different values of power allocation coefficients. These results show that the system model proposed in case 2 provides a better secrecy performance result than NOMA based models proposed in case 1 under both relaying techniques.
期刊介绍：
The Journal on Mobile Communication and Computing ...
Publishes tutorial, survey, and original research papers addressing mobile communications and computing;
Investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia;
Explores propagation, system models, speech and image coding, multiple access techniques, protocols, performance evaluation, radio local area networks, and networking and architectures, etc.;
98% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again.
Wireless Personal Communications is an archival, peer reviewed, scientific and technical journal addressing mobile communications and computing. It investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. A partial list of topics included in the journal is: propagation, system models, speech and image coding, multiple access techniques, protocols performance evaluation, radio local area networks, and networking and architectures.
In addition to the above mentioned areas, the journal also accepts papers that deal with interdisciplinary aspects of wireless communications along with: big data and analytics, business and economy, society, and the environment.
The journal features five principal types of papers: full technical papers, short papers, technical aspects of policy and standardization, letters offering new research thoughts and experimental ideas, and invited papers on important and emerging topics authored by renowned experts.
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