clc;
clear;
tic

frame_Length=160;??%The?length?of?each?frame
frame_number=40;????%The?number?of?frames
Meantimes=20;??????%The?times?of?mean
Testnum=15;????????%The?times?of?test??
error1=zeros（MeantimesTestnum）;?
error2=zeros（MeantimesTestnum）;

H=[0.5?0.25;
????0.125?0.5;
????0.25?0.125];
[NB]=size（H）;
h1=H（1:）;
h2=H（2:）;
h3=H（3:）;
for?times=1:Meantimes
????snr_in_db=0;
????for?testcount=1:Testnum
????????snr_in_db=2*（testcount-1）;?
????????SNR=10^（snr_in_db/10）;
????????for?frame_count=1:frame_number
?????????%*************************************************************************************%
?????????%?產(chǎn)生高斯噪聲?????????????????????????????????????????????????????????????????????????%
?????????%*************************************************************************************%?????
???????????L=frame_Length;
???????????noise1=randn（1?L/2）/（sqrt（2*SNR））;?
???????????noise2=randn（1?L/2）/（sqrt（2*SNR））;
???????????noise3=randn（1?L/2）/（sqrt（2*SNR））;?
????????%*************************************************************************************%
????????%?編碼算法??????????????????????????????????????????????????????????????%
????????%*************************************************************************************%
???????????input_bits=randint（1L）;?
????????????
???????????%?BPSK調(diào)制
???????????BPSK?=?[-1?1];????%?refer?to?Table82?on?page21?of?IEEE802.11a
???????????input_bits1?=?BPSK（input_bits+1）;
????????????
???????????send=reshape（input_bits1BL/B）;

?????????%接收信號???
????????????R1=h1*send+noise1;
????????????R2=h2*send+noise2;
????????????R3=h3*send+noise3;
????????????
%?????????????R1=h1*send;
%?????????????R2=h2*send;
???????%*************************************************************************************%
???????%?接收端解碼算法??????????????????????????????????????????????????????????????%
???????%*************************************************************************************%?????????
????????????%?ML譯碼
????????????output_bits1=decode_ML23_BPSK（HL/BR1R2R3）;?
????????????
????????????%?ZF譯碼
????????????output_bits2=decode_ZF23_BPSK（HL/BR1R2R3）;?????
???????????
???????%*************************************************************************************%
???????%?誤碼率統(tǒng)計??????????????????????????????????????????????????????????????????????????%
???????%*************************************************************************************%????
????????????errornumber1=output_bits1-input_bits;
????????????for?q=1:frame_Length
????????????????if?errornumber1（1q）~=0
????????????????????error1（timestestcount）=error1（timestestcount）+1;
????????????????end
????????????end
????????????
????????????errornumber2=output_bits2-input_bits;
????????????for?q=1:frame_Length
????????????????if?errornumber2（1q）~=0
????????????????????error2（timestestcount）=error2（timestestcount）+1;
????????????????end
????????????end
????????????
????????end
???

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

?????文件???????3380??2008-12-16?20:44??23-ML-ZF\BER_23_ML_ZF_BPSK.asv

?????文件???????3383??2008-12-16?20:45??23-ML-ZF\BER_23_ML_ZF_BPSK.m

?????文件???????2980??2008-12-16?20:26??23-ML-ZF\BER_ML23_BPSK.m

?????文件???????2993??2008-12-16?20:39??23-ML-ZF\BER_ZF23_BPSK.m

?????文件????????552??2008-12-16?20:26??23-ML-ZF\decode_ML23_BPSK.m

?????文件????????526??2008-12-16?20:38??23-ML-ZF\decode_ZF23_BPSK.m

?????文件????????513??2008-12-16?20:17??23-ML-ZF\ML23_BPSK.m

?????文件????????616??2008-12-16?20:33??23-ML-ZF\ZF23_BPSK.m

?????目錄??????????0??2008-12-16?20:44??23-ML-ZF

-----------?---------??----------?-----??----

????????????????14943????????????????????9