Waveform candidates for 5G mobile communications

Choosing a suitable waveform candidate for 5G air interface is the biggest challenge. Orthogonal Frequency Division Multiplexing (OFDM) is commonly adopted Multi-Carrier modulation waveform, has several limitations that is not suitable for future wireless scenarios. In this paper various problems based on the variants of OFDM are identified. Finally some new waveforms such as FBMC, UFMC and GFDM which are the promising waveform candidates for 5G are compared quantitatively.

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