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[ÇóÖú]
ÐÂÊÖ±àдÁËÒ»¸ö¼òµ¥µÄÊýѧ ºÐ×Ó·ÅÇòµÄÎÊÌâ¡£µ«ÊÇÔËÐÐÆðÀ´×ÜÌáʾ´íÎó¡£ÔõôÐÞ¸Äһϣ¡
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×Ô¼ºÐ´µÄ³ÌÐò£º
function r=download_rate(H,C,L,U)
w=zeros(1,H); %H¸öºÐ×Ó¶¼ÖÃÁã
w1=randperm(length(w)); %²úÉúËæ»úÊýÁÐ
w(w1(1:C))=1; %È¡ÊýÁеÄǰC¸öÊý£¬ÏàÓ¦µÄʹºÐ×ÓÖÃ1
for m=1:U
s=randperm(length(w)); %ÔÙÉú³ÉÒ»×éËæ»úÊýÁÐ
X=w(s(1:L)); %²úÉúËæ»úµÄL¸öºÐ×Ó£¬¶ÔÓ¦µÃµ½xµÄÖµ\
r=0;
if sum(X)>=1
r=r+1;
else
r=r+sum(X); %µÃ³öminµÄÖµ
end
end
ÔËÐУºH=50;
L=4;
U=20;
C=[1:50];
for i=1:50
r(i)=download_rate(H,C(i),L,U);
end
plot(c,r)
![ÐÂÊÖ±àдÁËÒ»¸ö¼òµ¥µÄÊýѧ ºÐ×Ó·ÅÇòµÄÎÊÌâ¡£µ«ÊÇÔËÐÐÆðÀ´×ÜÌáʾ´íÎó¡£ÔõôÐÞ¸Äһϣ¡]()
![ÐÂÊÖ±àдÁËÒ»¸ö¼òµ¥µÄÊýѧ ºÐ×Ó·ÅÇòµÄÎÊÌâ¡£µ«ÊÇÔËÐÐÆðÀ´×ÜÌáʾ´íÎó¡£ÔõôÐÞ¸Äһϣ¡-1]()
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