function?[envIQ]=?chtry（userNumsampleNumfm）

%WLAN?channel?modeling
%Zukang?Shen
%04/15/02


%Ts=50e-9*10000*2/20;?%time?sample?interval
Ts=1e-3;
N=200;?%number?of?input?waves
n=[0:N-1];
cita=2*pi*n/N;?%input?angles

for?user=1:userNum
alfa1=randn（1N）;?%magnitudes?of?input?waves?tap?1
alfanormed（1:）=alfa1/sqrt（sum（alfa1.^2））;?%normalized?magnitude?tap?1
alfa2=randn（1N）;?%magnitudes?of?input?waves?tap?2
alfanormed（2:）=alfa2/sqrt（sum（alfa2.^2））;?%normalized?magnitude?tap?2
alfa3=randn（1N）;?%magnitudes?of?input?waves?tap?3
alfanormed（3:）=alfa3/sqrt（sum（alfa3.^2））;?%normalized?magnitude?tap?3
alfa4=randn（1N）;?%magnitudes?of?input?waves?tap?4
alfanormed（4:）=alfa4/sqrt（sum（alfa4.^2））;?%normalized?magnitude?tap?4
alfa5=randn（1N）;?%magnitudes?of?input?waves?tap?5
alfanormed（5:）=alfa5/sqrt（sum（alfa5.^2））;?%normalized?magnitude?tap?5
alfa6=randn（1N）;?%magnitudes?of?input?waves?tap?6
alfanormed（6:）=alfa6/sqrt（sum（alfa6.^2））;?%normalized?magnitude?tap?6

phaseinit1=randn（1N）;
phaseinit（1:）=phaseinit1*2*pi/max（phaseinit1）;?%initial?phases?tap?1
phaseinit2=randn（1N）;
phaseinit（2:）=phaseinit2*2*pi/max（phaseinit2）;?%initial?phases?tap?2
phaseinit3=randn（1N）;
phaseinit（3:）=phaseinit3*2*pi/max（phaseinit3）;?%initial?phases?tap?3
phaseinit4=randn（1N）;
phaseinit（4:）=phaseinit4*2*pi/max（phaseinit4）;?%initial?phases?tap?4
phaseinit5=randn（1N）;
phaseinit（5:）=phaseinit5*2*pi/max（phaseinit5）;?%initial?phases?tap?5
phaseinit6=randn（1N）;
phaseinit（6:）=phaseinit6*2*pi/max（phaseinit6）;?%initial?phases?tap?6

%using?one-sided?exponential?profile
to=1*Ts;
tt=[0:5]*Ts;
g=exp（-tt/to）;%relative?engery?for?the?6?taps

????for?j=1:6%%multi-path
????????for?i=0:sampleNum-1%time-variety
????????????t=i*Ts;
????????????is=g（j）*sum（alfanormed（j:）.*cos（2*pi*fm*t*cos（cita）+phaseinit（j:）））;
????????????qs=g（j）*sum（alfanormed（j:）.*sin（2*pi*fm*t*cos（cita）+phaseinit（j:）））;
????????????I（userji+1）=is;
????????????Q（userji+1）=qs;
????????????envs=sqrt（qs^2+is^2）;
????????????env（userji+1）=envs;
????????end
????end

end

for?i=1:sampleNum
envtmp（i）=env（11i）;
end
%?figure
%?stem（[0:sampleNum-1]*Ts?20*log10（envtmp））
%?title（‘Rayleigh?Fading‘）
%?xlabel（‘t‘）
%?ylabel（‘r（t）‘）
%
%?figure
%?stem（[0:sampleNum-1]*Ts?envtmp）
%?title（‘Rayleigh?Fading‘）
%?xlabel（‘t‘）
%?ylabel（‘r（t）‘）

clear?alfa1?alfa2?alfa3?alfa4?alfa5?alfa6?alfanormed?phaseinit1?phaseinit2?phaseinit3?phaseinit4?phaseinit5?phaseinit6
clear?phaseinit?is?qs?envs

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????I.A....????188456??2015-07-04?18:05??MATLAB-code-of-OFDMA-power-allocation\A_Low_Complexity_Algorithm_for_Proportional_Resource_Allocation_in_OFDMA_Systems.pdf

?????文件???????2548??2010-04-12?16:19??MATLAB-code-of-OFDMA-power-allocation\chtry.m

?????文件???????2089??2009-07-28?09:43??MATLAB-code-of-OFDMA-power-allocation\rheesub.m

?????文件????????953??2009-07-27?17:49??MATLAB-code-of-OFDMA-power-allocation\rootfinding.m

?????文件???????2594??2010-04-16?16:03??MATLAB-code-of-OFDMA-power-allocation\shenpowerallo.asv

?????文件???????2711??2010-04-16?16:38??MATLAB-code-of-OFDMA-power-allocation\shenpowerallo.m

?????文件???????5363??2010-04-13?20:43??MATLAB-code-of-OFDMA-power-allocation\SIPS04main.asv

?????文件???????5394??2010-04-16?17:17??MATLAB-code-of-OFDMA-power-allocation\SIPS04main.m

?????文件???????2218??2009-07-29?15:32??MATLAB-code-of-OFDMA-power-allocation\Untitled3.m

?????文件???????1585??2010-04-13?20:09??MATLAB-code-of-OFDMA-power-allocation\waterfilling.m

?????文件???????3283??2009-07-31?17:20??MATLAB-code-of-OFDMA-power-allocation\wongpowerallo.m

?????文件???????2823??2009-07-28?09:43??MATLAB-code-of-OFDMA-power-allocation\wongsuballo.m

?????目錄??????????0??2015-07-04?18:05??MATLAB-code-of-OFDMA-power-allocation

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???????????????220017????????????????????13