g symbols that are dispersed over N subcarriers and Na/N symbol instants [9]. Another potential waveform candidate for future wireless communication sys- tems is based on filter bank multicarrier (FBMC) operation [10]. Contrary to the time-domain rectangular pulse with sinc-shaped frequency localization in OFDM, subcarriers in FBMC are synthesised and analysed using a bank of well FT localized modulated and demodulated filters, respectively. There are several variants of FBMC in the existing literature, namely, staggered multi-tone (SMT), filtered multi-tone (FMT) and cosine-modulated multi-tone (CMT) [10]. FMT, which has been evolved particularly for DSL [11], is designed using the classic frequency division multiplexing (FDM) operation, wherein the subcarriers band are made unconnected by introducing guard bands. Thus, FMT is a bandwidth inefficient signalling scheme. In contrast, both SMT and CMT, by allowing overlapping of adjacent subcarriers, offer maximum bandwidth efficiency [10]. To carry pulse amplitude modulated (PAM) symbols, overlapped vestigial side-band (VSB) mod- ulated signals are staggered in CMT. On the other side, signalling in SMT is designed using staggering of overlapping double side-band modulated format to carry quadrature amplitude modulated (QAM) symbols, whose real and imaginary parts are time-offset by one half of a symbol duration. A formal mathematical relationship between CMT and SMT has been derived in [12]. Since the VSB modulation in CMT requires Hilbert transform, its implementation is more complex than SMT. In the literature, SMT is popularly known as offset quadrature amplitude modulation (OQAM)-based OFDM (OFDM-OQAM) or FBMC-OQAM. Figure 3.1a,b show a section of OFDM and FBMC-OQAM filter banks, respec- tively. The subchannel index therein corresponds to the frequency axis with unity subcarrier spacing. The subcarrier orthogonality for the OFDM filter bank in Fig. 3.1a can be observed through the zero crossings at the integer multiple of subcarrier spacing where only one subc