Hi. i try to use

`K>> -(rel_entr(alpha1(i),alpha1(i) + (E(i)*(abs(g_du(i)))^2)/(P_cu_1*(abs(g_cu_du(1,(i))))^2 + P_cu_2*(abs(g_cu_du(2,(i))))^2 + sigma2_w)))`

instead of

`> K>> alpha1(i)*log10(1 + (E(i)*(abs(g_du(i)))^2)/(alpha1(1)*(P_cu_1*(abs(g_cu_du(1,i)))^2 + P_cu_2*(abs(g_cu_du(2,i)))^2 + sigma2_w)))`

in my cvx problem and when the problem is solved for my variables like `E`

and `alpha1`

, i put these variables in `rel_entr`

and i see the final value is different with `alpha1*log2(1+...)`

as i wrote above. i mean `rel_entr`

value is different from simple form and is less.