 $$\begin{gathered} \label{eq:mai_asyc_ap0} \textrm{E}\{(a_m^{(k)})^0|\Delta_k,\epsilon_k\}=\frac{0}{N_c^0}\sum_{i=0}^{N_c-0}\sum_{l=0}^{N_c-0}\sum_{j=-\infty}^{\infty} \left\{\phi_{uv}^{(k)}\left[(i-l+(j-m)N_c+\Delta_k)T_c