A synchronization framework for multiuser OTFS uplink that estimates timing and carrier frequency offsets with a shared pilot region, threshold-based peak detection, and reduced-complexity maximum likelihood CFO estimation.
Embedde d delay- Doppler channel estimation for orthogonal time frequency s pace modu- lation,
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Time and Frequency Synchronization for Multiuser OTFS in Uplink
A synchronization framework for multiuser OTFS uplink that estimates timing and carrier frequency offsets with a shared pilot region, threshold-based peak detection, and reduced-complexity maximum likelihood CFO estimation.