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Orthogonal Frequency Division Multiplexing (OFDM) is the most popular scheme for broadband communications. However, it has been shown that OFDM has disadvantages in time-varying channels. Filter Bank MultiCarrier (FBMC) is an alternative multicarrier modulation method that can be designed for robust performance in doubly (time and frequency) dispersive channels. The emphasis of this paper is on a class of FBMC systems that are called Filtered MultiTone (FMT). The authors note that although unlike the more popular FBMC systems that use Offset Quadrature Amplitude Modulation (OQAM) or cosine modulated techniques to achieve full bandwidth efficiency, FMT does not have full bandwidth efficiency, its possible use in Multiple-Input Multiple-Output (MIMO) channels still makes it an attractive method.
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