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The Resurrection of Spectrum Spreading for 6G and Beyond: From Sinusoids to Chirps

Rou, Hyeon Seok et al.
arXiv (All) · Papers
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information-theorysignal-processing
Orthogonal frequency-division multiplexing (OFDM) and its sinusoidal subcarriers have underpinned the 4G and 5G eras, delivering high spectral efficiency and resilience to multipath fading through an efficient multicarrier architecture. However, as future systems move toward doubly dispersive enviro
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