3.3), the received signal can be written as (3.18) where p(i) is the factor for power adjustment in subband i, and w(n) is the white noise. If the two subband signals have the same transmit power, then we have (3.19) where is the average power of the transmit window g(1) (n). Considering similar steps as (3.1)-(3.9), the demodulated m-th W-OFDM symbol on subcarrier k can be written as (3.20) The three terms in (3.20) are the desired signal, INI caused by numerology j (j#i), and AWGN, respectively. By setting N(1) = 1, N(2) = N2, the received mixed signal during one LCM symbol can be written as y = Gp W, (3.21) x CnZ(2)x1 are the channel matrices, transmit matrices, and information symbols of sub- band 1 and subband 2, respectively, and W E CNF'x denotes the Gaussian noise. Based on 3 Windowed OFDM for Mixed-Numerology 5G and Beyond Systems (3.13), (3.14), and (3.15), the demodulated signal from numerology 1 can be written as yQyE(12)w1 (3.22) where is the desired signal with H(1) E CZ(1)xZ(1) being the diagonal CFR matrix. Moreover, E(1,2)X denotes the INI that is caused by the system with numerology 2, and E(1,2) = is the Z(1) X n2Z(2) interference matrix. w(1) in (3.22) is the Gaussian noise term with the variance vector being (1) [a(), .,O2 (1) 1)]T. Similarly, the demodulated numerology 2 signal ym E Cn2Z(2)x1 can be written as (3.23) where Hm = BlkDiag(H² 2andd((1E( = denotes the INI coming from subband 1, and(21pGisthe Z(1) interference matrix. The variance vector for noise w(2) is r with 3.3 Inter-numerology Interference Analysis In this section, we will discuss the INI generated between two adjacent subbands, wherein different numerologies are allocated. 3.3.1 Inter-numerology Interference Analysis for Numerology 1 By setting i = 1 and j = 2, the INI suffered by the m-th W-OFDM symbol in subcarrier k of numerology 1, i.e. the interference term in (3.20), can be written as (3.24) where (3.25) The term (k, m) in (3.25) is the INI caused by the u-th subcarrier of numerology 2. As we assumed the transmit sign