资源简介
mimo(1).zip
代码片段和文件信息
% in this programe a highly scattered enviroment is considered. The
% Capacity of a MIMO channel with nt transmit antenna and nr recieve
% antenna is analyzed. The power in parallel channel (after
% decomposition) is distributed as water-filling algorithm
% the pdf of the matrix lanada elements is depicted too.
clear all
close all
clc
nt_V = [1 2 3 2 4];
nr_V = [1 2 2 3 4];
N0 = 1e-4;
B = 1;
Iteration = 1e4; % must be grater than 1e2
SNR_V_db = [-10:3:20];
SNR_V = 10.^(SNR_V_db/10);
color = [‘b‘;‘r‘;‘g‘;‘k‘;‘c‘];
notation = [‘-o‘;‘->‘;‘<-‘;‘-^‘;‘-s‘];
for(k = 1 : 5)
nt = nt_V(k);
nr = nr_V(k);
for(i = 1 : length(SNR_V))
Pt = N0 * SNR_V(i);
for(j = 1 : Iteration)
H = random(‘rayleigh‘1nrnt);
[S V D] = svd(H);
landas(:j) = diag(V);
[Capacity(ij) PowerAllo] = WaterFilling_alg(Ptlandas(:j)BN0);
end
end
f1 = figure(1);
hold on
plot(SNR_V_dbmean(Capacity‘)notation(k:)‘color‘color(k:))
f2 = figure(2);
hold on
[yx] = hist(reshape(landas[1min(ntnr)*Iteration])100);
plot(xy/Iteration‘color‘color(k:));
clear landas
end
f1 = figure(1)
legend_str = [];
for( i = 1 : length(nt_V))
legend_str =[ legend_str ;...
{[‘nt = ‘num2str(nt_V(i))‘ nr = ‘num2str(nr_V(i))]}];
end
legend(legend_str)
grid on
set(f1‘color‘[1 1 1])
xlabel(‘SNR in dB‘)
ylabel(‘Capacity bits/s/Hz‘)
f2 = figure(2)
legend(legend_str)
grid on
set(f2‘color‘[1 1 1])
ylabel(‘pdf of elements in matrix landa in svd decomposition of marix H‘)
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 1661 2006-10-03 09:17 mimo\MIMO_System.m
文件 779 2006-10-02 20:37 mimo\WaterFilling_alg.m
目录 0 2006-10-04 15:40 mimo\
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