argminzf.m

对Vblast—oFdm系统地仿真

function [k, postSNR] = argminzf(G,sigma2,krest)
kno=length(krest);
Gnorm=zeros(2,kno);
for ii=1:kno
    Gnorm(:,ii)=[krest(ii);norm(G(krest(ii),:),'fro')];
end
[minnorm, mincol]=min(Gnorm(2,:));
k=Gnorm(1,mincol);
postSNR=1/(minnorm.^2*sigma2);