Algorithm 1. Solution to $\mathbf{P}\mathbf{5}$

Initialize $K^{(0)},\zeta$ and set $t=0$; Repeat $t\leftarrow t+1$ Calculate $q^{(t)}$ and $p^{(t)}$ based on (26) given $K^{(t-1)}$; $K^{(t)}=\zeta K^{(t-1)}$; Until the objective function of $\mathbf{P}\mathbf{5}$ gradually decreases. Obtain optimal tuple $(p^{*},q^{*},K^{*})$.