Over the years, OFDM (orthogonal frequency division multiplexing) has been the preferred wireless broadband multicarrier technology. Although it offers efficient power efficiency, good spectral efficiency and provides multipath
propagation, it has several limitations when it comes to machine to machine communications needed in 5G
applications. These limitations include cyclic prefix (CP), sideband leakage and unacceptable Peak to Average Power
Ratio (PAPR). There is need to distinctively consider other multicarrier modulation techniques which include but not
limited to FBMC (filter bank multicarrier), UFMC (universal filtered multicarrier) and GFDM (generalized frequency
division multiplex (GFDM) for 5G communications. Various unique parameters were evaluated here which include
spectral regrowth, the impact of amplification on signals of the various waveforms, the robustness of the systems
against carrier frequency offset (CFO) and noise impact for AWGN (Additive White Gaussian Noise) as a result of
robustness against noise.
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