Affine Frequency Division Multiplexing (AFDM) for 6G: Properties, Features, and Challenges
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917179385970688 |
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| author | Rou, Hyeon Seok Ranasinghe, Kuranage Roche Rayan Savaux, Vincent de Abreu, Giuseppe Thadeu Freitas G., David González Masouros, Christos |
| author_facet | Rou, Hyeon Seok Ranasinghe, Kuranage Roche Rayan Savaux, Vincent de Abreu, Giuseppe Thadeu Freitas G., David González Masouros, Christos |
| contents | Affine frequency division multiplexing (AFDM) is an emerging waveform candidate for future sixth generation (6G) systems offering a range of promising features, such as enhanced robustness in heterogeneous and high-mobility environments, as well as inherent suitability for integrated sensing and communications (ISAC) applications. In addition, unlike other candidates such as orthogonal time-frequency space (OTFS) modulation, AFDM provides several unique advantages that strengthen its relevance to practical deployment and standardization in 6G. Notably, as a natural generalization of orthogonal frequency division multiplexing (OFDM), strong backward compatibility with existing conventional systems is guaranteed, while also offering novel possibilities in waveform design, for example to enable physical-layer security through its inherent chirp parametrization. In all, this article provides an overview of AFDM, emphasizing its suitability as a candidate waveform for 6G standardization. First, we provide a concise introduction to the fundamental properties and unique characteristics of AFDM, followed by highlights of its advantageous features, and finally a discussion of its potential and challenges in 6G standardization efforts and representative requirements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_21704 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Affine Frequency Division Multiplexing (AFDM) for 6G: Properties, Features, and Challenges Rou, Hyeon Seok Ranasinghe, Kuranage Roche Rayan Savaux, Vincent de Abreu, Giuseppe Thadeu Freitas G., David González Masouros, Christos Signal Processing Affine frequency division multiplexing (AFDM) is an emerging waveform candidate for future sixth generation (6G) systems offering a range of promising features, such as enhanced robustness in heterogeneous and high-mobility environments, as well as inherent suitability for integrated sensing and communications (ISAC) applications. In addition, unlike other candidates such as orthogonal time-frequency space (OTFS) modulation, AFDM provides several unique advantages that strengthen its relevance to practical deployment and standardization in 6G. Notably, as a natural generalization of orthogonal frequency division multiplexing (OFDM), strong backward compatibility with existing conventional systems is guaranteed, while also offering novel possibilities in waveform design, for example to enable physical-layer security through its inherent chirp parametrization. In all, this article provides an overview of AFDM, emphasizing its suitability as a candidate waveform for 6G standardization. First, we provide a concise introduction to the fundamental properties and unique characteristics of AFDM, followed by highlights of its advantageous features, and finally a discussion of its potential and challenges in 6G standardization efforts and representative requirements. |
| title | Affine Frequency Division Multiplexing (AFDM) for 6G: Properties, Features, and Challenges |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2507.21704 |