%?Lab?06
%?WiCom_4
%?By?Kashif?Shahzad?
%?01-ET-31
%?4th?July?2004

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?CDMA?coding?and?decoding?mechanism
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
clc
clear

%?Generation?of?Random?Bits
r=round（rand（120））;

%?Chip?Pattern?for?station?A?B?and?C
a_one=[1?-1?-1?1?-1?1];
a_zero=-1*a_one;
b_one=[1?1?-1?-1?1?1];
b_zero=-1*b_one;
c_one=[1?1?-1?1?1?-1];
c_zero=-1*c_one;

%?Random?Allotment?of?bits?to?stations?AB?and?C
cdma_seq=[];
for?counter=1:20
????switch（randint（11[1?3]））
????????case（1）
????????????if?r（1counter）==0;
????????????????cdma_seq=[cdma_seq?a_zero];
????????????else
????????????????cdma_seq=[cdma_seq?a_one];
????????????end
????????case（2）
????????????if?r（1counter）==0;
????????????????cdma_seq=[cdma_se

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

?????文件???????1190??2004-07-03?21:28??dsss.m

?????文件???????1858??2004-07-04?12:35??cdma_codec.m

?????文件???????3940??2010-10-10?17:42??Convolutional+Encoding+and+Viterbi+Decoding.m

?????文件???????3046??2010-10-10?17:45??QPSK_Modulation.m

?????文件????????657??2010-10-10?17:44??QPSK1.m

?????文件???????6942??2010-11-05?18:52??sim_qpskgray_multipath.m

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

????????????????17633????????????????????6