function [CIR_max_multicast] = CIR_max_for_multicast(CIR)

[m,n]=size(CIR);

CIR_max_multicast(1,:)=CIR(1,:);

for i=2:m
    for j=1:45000
        CIR_max_multicast(i,j)=max(CIR(1:i,j));
    end
end