Faster-Than-Nyquist Signaling for Next-Generation Wireless: Principles, Applications, and Challenges

Date

2026-01-01

Author

Li, Shuangyang
Yüksel Turgut, Ayşe Melda
Xu, Tongyang
Sugiura, Shinya
Yuan, Jinhong
Caire, Giuseppe
Hanzo, Lajos

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Future wireless networks are expected to deliver ultra-high throughput for supporting emerging applications. In such scenarios, conventional Nyquist signaling may falter. As a remedy, faster-than-Nyquist (FTN) signaling facilitates the transmission of more symbols than Nyquist signaling without expanding the time-frequency resources. We provide an accessible and structured introduction to FTN signaling, covering its core principles, theoretical foundations, unique advantages, open facets, and its road map. Specifically, we present promising coded FTN results and highlight its compelling advantages in integrated sensing and communications (ISAC), an increasingly critical function in future networks. We conclude with a discussion of open research challenges and promising directions.

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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105027955239&origin=inward
https://hdl.handle.net/11511/118620

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Department of Electrical and Electronics Engineering, Article