Is the code of ZMCSCG channel like this ? h_1=sqrt(1​/2)*(randn​(N,1)+1i*r​andn(N,1))​;

I saw a paper,and it said we represent by h_K is N by 1 matrix,the channel vector between the N-antenna TX and the single-antenna RX k . The entries of each h_k are assumed to be independent Zero-Mean Circularly Symmetric Complex Gaussian (ZMCSCG) random variables with variance σ^2_{h,k} that depends on the propagation losses of the TX to RX k.

The range if k is 1~4,

Can i just write the code like this ? or what /how should i improve?

    h_1=sqrt(1/2)*(randn(N,1)+1i*randn(N,1));
    h_2=sqrt(1/2)*(randn(N,1)+1i*randn(N,1));
    h_3=sqrt(1/2)*(randn(N,1)+1i*randn(N,1));
    h_4=sqrt(1/2)*(randn(N,1)+1i*randn(N,1));
    h_kk=cat(2,h_1 ,h_2 ,h_3, h_4)

h_kk is the ZMCSCG