GF-OTFS applies global subband filtering in the frequency-Doppler domain to SC-FDMA-based OTFS, reducing Doppler leakage and out-of-band emissions while keeping BER competitive or better than existing OTFS variants.
Orthogonal time frequency spa ce modu- lation,
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Delay-Doppler Multiplexing With Global Filtering
GF-OTFS applies global subband filtering in the frequency-Doppler domain to SC-FDMA-based OTFS, reducing Doppler leakage and out-of-band emissions while keeping BER competitive or better than existing OTFS variants.