How can I express this constraint? The yellow marks are my optimization variables, which are the matrices of 1*k, k*k, k*k respectively, and the denominators hi and hij are the matrices of 1*k and k*k respectively. Similarly, l_ij is also k*k matrix. I have written the following code, but it seems to be expressed in a non-standard way. Because there is a sum for j, so I don’t know how to express it.

```
subject to
for i = 1:Device_num
(exp(inv_pos(Power_s(i)) * log(2)) - 1) * l_s(i) / H_i(i) +...
+sum((exp(inv_pos(Power_ijD(i,:)) * log(2) ) - 1) * l_d(i,:) / H_ij(i,:)) +...
+ sum ((exp(inv_pos(Power_ijr(i,:)) * log(2) ) - 1) * l_r(i,:) / H_i(i)) <= p / (Band * N0);
end
Power_s >= 0
Power_ijD >= 0
Power_ijr >= 0
cvx_end
```