A Multiple Access Approach for Faster-than-Nyquist GFDM Systems

A Multiple Access Approach for Faster-than-Nyquist GFDM Systems | 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 A Multiple Access Approach for Faster-than-Nyquist GFDM Systems Mariana Mello, Daniely Silva, Luciano Mendes This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6113599/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 07 Feb, 2026 Read the published version in Wireless Networks → Version 1 posted 14 You are reading this latest preprint version Abstract Sixth-generation (6G) mobile networks is expected to revolutionize wireless connectivity, paving the way for the Internet of Everything (IoE) and enabling seamless communication between devices, people, and organizations. Advanced techniques, such as non-orthogonal multiple access (NOMA), massive multiple input multiple output (MIMO), and millimeter wave (mmWave) are proposed to deliver high data rates and increase the capacity and spectral efficiency of ultra-dense device networks. However, in scenarios like enhanced remote area communications (eRAC), the use of sub-gigahertz frequencies and TV white spaces (TVWS) is essential to provide Internet services in rural and remote areas, making these advanced techniques impractical. In this context, this paper proposes a new multiple access approach based on the faster-than-Nyquist generalized frequency division multiplexing (FTN-GFDM) waveform to improve user throughput and network capacity in remote areas. Resources in the FTN-GFDM time-frequency grid are allocated with the goal of avoiding inter-user interference (IUI) caused by signal overlap in the time or frequency domains, enabling equalization and detection of user signals without loss of bit error rate (BER) performance. This paper exploits resource allocation strategies and uplink and downlink scenarios for faster-than-Nyquist generalized frequency division multiple access (FTN-GFDMA) schemes, evaluating the effects of interference on BER performance and detection complexity. 6G networks FTN GFDM multiple access non-orthogonal waveform spectral efficiency Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 07 Feb, 2026 Read the published version in Wireless Networks → Version 1 posted Editorial decision: Revision requested 20 Oct, 2025 Reviews received at journal 19 Oct, 2025 Reviews received at journal 02 Oct, 2025 Reviewers agreed at journal 22 Sep, 2025 Reviewers agreed at journal 18 Sep, 2025 Reviewers agreed at journal 09 Aug, 2025 Reviewers agreed at journal 14 Jul, 2025 Reviews received at journal 11 May, 2025 Reviewers agreed at journal 04 May, 2025 Reviewers agreed at journal 24 Apr, 2025 Reviewers invited by journal 15 Apr, 2025 Editor assigned by journal 04 Mar, 2025 Submission checks completed at journal 03 Mar, 2025 First submitted to journal 26 Feb, 2025 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. 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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-6113599","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":423835937,"identity":"454e3e14-f8d7-4c78-910b-3aa508bd9960","order_by":0,"name":"Mariana Mello","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABC0lEQVRIiWNgGAWjYJCCAyDCAMqRYwNTBQwJxGoxMAZqYWwAcvFqYUDWkthASItu+9mHB37usGMwZz/78MOPmj/pfdLNzx98MGDIM2/ArsXsTLrBwd4zyQyWPenGkj3HDHLbZI4ZNs4wYCiWOYBDy4E0hgO8bcwMBkCGNAMbUItEgmEzjwFD4gwcDjM7/4zh4N+2egaD88+YfzP8M0hnk0j/2PwHn5YbaQyHedsOMxjcSGOTZmwzSGCTyDFsZsCr5RnDYdm24zyWM56xWfb2GRu2SeQUzuwxkCiWwOmwNOaPb9uq5cz505hv/PgmJy8/I33Dhx8VNnm4tMAAD7oAIQ2jYBSMglEwCvABAEGdWBziE42XAAAAAElFTkSuQmCC","orcid":"","institution":"National Institute of Telecommunications","correspondingAuthor":true,"prefix":"","firstName":"Mariana","middleName":"","lastName":"Mello","suffix":""},{"id":423835938,"identity":"92f25519-6943-4fc0-96c9-15c36159d8a8","order_by":1,"name":"Daniely Silva","email":"","orcid":"","institution":"National Institute of Telecommunications","correspondingAuthor":false,"prefix":"","firstName":"Daniely","middleName":"","lastName":"Silva","suffix":""},{"id":423835941,"identity":"0ccd68f3-4036-47bd-b616-52c9307c3a26","order_by":2,"name":"Luciano Mendes","email":"","orcid":"","institution":"National Institute of Telecommunications","correspondingAuthor":false,"prefix":"","firstName":"Luciano","middleName":"","lastName":"Mendes","suffix":""}],"badges":[],"createdAt":"2025-02-26 13:23:25","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6113599/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6113599/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s11276-025-04082-3","type":"published","date":"2026-02-07T15:57:34+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":102234027,"identity":"4faa0903-0eed-4d12-baa2-50c28fb58166","added_by":"auto","created_at":"2026-02-09 16:04:27","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2026822,"visible":true,"origin":"","legend":"","description":"","filename":"AMultipleAccessApproachforFasterthanNyquistGFDMSystemsEPS2.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6113599/v1_covered_742a1225-a7d9-4ab3-97ac-901df4b1a8bf.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"A Multiple Access Approach for Faster-than-Nyquist GFDM Systems","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"wireless-networks","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"wine","sideBox":"Learn more about [Wireless Networks](http://link.springer.com/journal/11276)","snPcode":"11276","submissionUrl":"https://submission.nature.com/new-submission/11276/3","title":"Wireless Networks","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"6G networks, FTN, GFDM, multiple access, non-orthogonal waveform, spectral efficiency","lastPublishedDoi":"10.21203/rs.3.rs-6113599/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6113599/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Sixth-generation (6G) mobile networks is expected to revolutionize wireless connectivity, paving the way for the Internet of Everything (IoE) and enabling seamless communication between devices, people, and organizations. 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