Ergodic Secracy Capacity Analysis of Intelligent Reflecting Surface-Aided Vehicular Communication Systems with Dynamic Eavesdropping

Ergodic Secracy Capacity Analysis of Intelligent Reflecting Surface-Aided Vehicular Communication Systems with Dynamic Eavesdropping | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Ergodic Secracy Capacity Analysis of Intelligent Reflecting Surface-Aided Vehicular Communication Systems with Dynamic Eavesdropping RAJESH KUMAR, Richa Agrawal, V K Jagadeesh This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8613119/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract The integration of intelligent reflecting surfaces (IRS) in vehicular communication systems offers unprecedented opportunities for enhancing physical layer security. This paper investigates the ergodic secrecy capacity (ESC) of IRS-aided vehicular networks under dynamic eavesdropping scenarios. Novel closed-form expressions are derived for ESC considering realistic Rician fading channels, vehicle mobility, and time-varying eavesdropper positions. The analytical framework accounts for Doppler effects, path loss, and optimal IRS phase shift design. Monte Carlo simulations shows excellent agreement with theoretical results ( deviation \(( < )\) 3 \((%)\) ). Performance evaluation reveals that 64-element IRS configurations can maintain secure communications at vehicle speeds up to 120 km/h while achieving 4.00 bits/s/Hz ergodic secrecy capacity and mobility degradation factor increases from 0.52 at 30 km/h to 0.69 at 120 km/h. The proposed system finds practical applications in autonomous vehicle platoons, Vehicle-to-Everything (V2X) payment systems, and military convoy communications. Intelligent reflecting surface (IRS) Vehicular communications Physical layer security Ergodic secrecy capacity (ESC) Dynamic eavesdropping Vehicle-to-Everything (V2X ) security Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8613119","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":588380279,"identity":"d387ad47-11c9-4215-b96e-86eb3f606023","order_by":0,"name":"RAJESH KUMAR","email":"data:image/png;base64,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","orcid":"","institution":"National Institute of Technology Patna","correspondingAuthor":true,"prefix":"","firstName":"RAJESH","middleName":"","lastName":"KUMAR","suffix":""},{"id":588380280,"identity":"c4fe098d-7cc5-4a72-a5df-ed4ec611f7aa","order_by":1,"name":"Richa Agrawal","email":"","orcid":"","institution":"National Institute of Technology Patna","correspondingAuthor":false,"prefix":"","firstName":"Richa","middleName":"","lastName":"Agrawal","suffix":""},{"id":588380281,"identity":"4568256f-a56a-409e-8557-bbae23e9d303","order_by":2,"name":"V K Jagadeesh","email":"","orcid":"","institution":"National Institute of Technology Calicut","correspondingAuthor":false,"prefix":"","firstName":"V","middleName":"K","lastName":"Jagadeesh","suffix":""}],"badges":[],"createdAt":"2026-01-15 18:53:16","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8613119/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8613119/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":104019610,"identity":"57643fcf-922f-4230-adfc-1371fd009303","added_by":"auto","created_at":"2026-03-05 18:09:52","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":8829022,"visible":true,"origin":"","legend":"","description":"","filename":"ERGODICSECRECYCAPACITYANALYSISOFINTELLIGENTREFLECTINGSURFACEAIDEDVEHICULARCOMMUNICATIONSYSTEMSWITHDYNAMICEAVESDROPPING1.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8613119/v1_covered_94b0973d-49ea-4aa1-8d5a-10d090f84c4b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Ergodic Secracy Capacity Analysis of Intelligent Reflecting Surface-Aided Vehicular Communication Systems with Dynamic Eavesdropping","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Intelligent reflecting surface (IRS), Vehicular communications, Physical layer security, Ergodic secrecy capacity (ESC), Dynamic eavesdropping, Vehicle-to-Everything (V2X ) security","lastPublishedDoi":"10.21203/rs.3.rs-8613119/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8613119/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe integration of intelligent reflecting surfaces (IRS) in vehicular communication systems offers unprecedented opportunities for enhancing physical layer security. This paper investigates the ergodic secrecy capacity (ESC) of IRS-aided vehicular networks under dynamic eavesdropping scenarios. Novel closed-form expressions are derived for ESC considering realistic Rician fading channels, vehicle mobility, and time-varying eavesdropper positions. The analytical framework accounts for Doppler effects, path loss, and optimal IRS phase shift design. Monte Carlo simulations shows excellent agreement with theoretical results ( deviation \u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\(( \u0026lt; )\\)\u003c/span\u003e\u003c/span\u003e 3\u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\((%)\\)\u003c/span\u003e\u003c/span\u003e). Performance evaluation reveals that 64-element IRS configurations can maintain secure communications at vehicle speeds up to 120 km/h while achieving 4.00 bits/s/Hz ergodic secrecy capacity and mobility degradation factor increases from 0.52 at 30 km/h to 0.69 at 120 km/h. The proposed system finds practical applications in autonomous vehicle platoons, Vehicle-to-Everything (V2X) payment systems, and military convoy communications.\u003c/p\u003e","manuscriptTitle":"Ergodic Secracy Capacity Analysis of Intelligent Reflecting Surface-Aided Vehicular Communication Systems with Dynamic Eavesdropping","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-02-10 16:55:02","doi":"10.21203/rs.3.rs-8613119/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"831722b4-36ad-4be8-a103-f76df12c3aef","owner":[],"postedDate":"February 10th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-03-05T18:08:29+00:00","versionOfRecord":[],"versionCreatedAt":"2026-02-10 16:55:02","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8613119","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8613119","identity":"rs-8613119","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}