Rethink delay Doppler channels and time-frequency coding
In this paper, we rethink delay Doppler channels (also called doubly selective channels). We prove that no modulation schemes (including the current active VOFDM/OTFS) can compensate a non-trivial Doppler spread well. We then discuss some of the existing methods to deal with time-varying channels, i...
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| Autor principal: | |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
KeAi Communications Co., Ltd.
2025-05-01
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| coleção: | Journal of Information and Intelligence |
| Assuntos: | |
| Acesso em linha: | http://www.sciencedirect.com/science/article/pii/S2949715925000022 |
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