rts of a QAM symbol and p(t) is the symmetrical real-valued pulse, which is different from the rectangular pulse in OFDM. The phase factor 0m,n is defined as modulo IT, for example, 0m,n =(/2)(m+n) [15]. The real OQAM symbols dm,n are drawn from the spatially and temporally independent and identically distributed (i.i.d.) in- phase and quadrature components of a QAM symbol cm,n as follows: m m odd even (3.3) m odd. even (3.4) Each component OQAM symbols dm,2n and dm,2n+1 is of duration T/2. Let E[Cm,ncm.nl = 2Pd, which implies that E[dm,ndm.nl = Pd. In the presence of ideal channel without noise, the FBMC demodulation at subcarrier index m and symbol instant is performed using the matched filtering operation as shown below [15] (3.5) P. Singh and E. Sharma Thus, in order to recover OQAM symbols dm,n at the receiver, the basis functions Xm,n (t) satisfy the following real-field orthogonality condition (3.6) where 8m,m is the Kronecker delta with 8m,m = lif m = m and zero otherwise. Since N complex valued symbols are transmitted in T time interval, Ts = T/N is the critical sampling interval. The discrete-time FBMC baseband transmitted signal is obtained by sampling s(t) with the sampling rate 1/Ts. The causal discrete-time prototype pulse p[k] of length Lp is obtained by truncating p(t) from - (Lp/2)Ts to (Lp/2)Ts and delaying it by ((Lp - 1)/2)Ts. The discrete-time baseband signal is obtained by sampling s(t) at t = kTs as (3.7) m=0nEZ The discrete-time basis function Xm,n[k] is defined as (3.8) The equivalent real-field orthogonality in the discrete domain for reconstructing real OQAM symbols dm,n is given as (3.9) Figure 3.2a,b shows the discrete-time baseband model for the FBMC transmitter and receiver, respectively. The main dissimilarities between FBMC and OFDM waveforms lie (i) in the selection of pulse-shaping filter p[k] and (ii) in the property the former accepted OQAM symbols instead of QAM symbols. The function (.) in Fig. 3.2a performs the operations described in (3.3) and (3.4) for the even and odd in