5G Systems requires both spectral efficiency and robust synchronization. Majority of candidates are multicarrier and Non-orthogonal waveforms.
The members of “filtered” OFDM designs are
FBMC: Filter Bank Multi Carrier and
UFMC: Universal Filtered Multi Carrier.
FBMC: Filter Bank Multi Carrier –
It introduces per- Sub carrier filtering to reduce the side lobes. It has couple of implementation techniques they are frequency spreading (extended IFFT/FFT) and poly-phase network (more efficient, commonly employed)
