User 1                                                                                                User 1 

                                                                                                  
User 2                                                                                                User 2 


User 3                                                                                                User 3 




User N                                                                                                User N



                                CDMA                                 



                                                                                                      

                              
                                  *                         
                                  *                                               
              
                                  *                                                   



                                        



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

                                                    
                                                                                                                                                            

                                                                                                                                                  



                                                                                                                                                                         F=32                 K=4  
                                    1bit                                                                                            F                              


User 1                           1                5                  10                  15                 20                  25                 30     32





User 2                           1                5                  10                  15                 20                  25                 30     32

                                                                                                                                                                       1bit
                                                                                                                                                                        T

                                                                                                                                



                                       


                   
                                                                                                                                                                                                                                                                         1                                                                                                                                                                                                             0                                                                              1


                                                                                                                                                                                                                                                                                   Fig.5  User 1                                                                                                                                                                                                                                                                  






User 1                                                                                                                                                                                                                                                                        1                                                                                                                                                                                                             0                                                                              1
User 2                                                                                                                                                                                                                                                                        0                                                                                                                                                                                                             1                                                                              1
                                             2                                                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                     



                                                                    

                                                                                            T              T
                                                                        User 1

                                                                                                 T              T
                                                                        User 2

                                                                                       T              T
                                                                        User 3



                                                                              r(t)


                                                                                  T
                                                                                                 T



                                                                                                                                                                      




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       decision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

                                                                                                                                                                                                                                                                                                                           




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         



                                                                                                                                   (decision)


                                                                         

                                                                    


                                                                                                                                                    
                                                                                                  
                                                                                                                                                

                                                                                                                              



                                                                                                                      

                                                                                                                                  r(t)

                                                                                                                                   T
                                                                                                                                                                                                                                                                    
                                                                                                                                           s(t)


                                                                                                                                                                                                                                                                        ||


                                                                                                                                    4                                                                                                                              1          5
                                                                                                                             


                                                                                                                         

                                                                                                                                                                                                                                                               



                                                                                                                

                                                                                                                            r(t)


                                                                                                                             T                                                                                                                                                               T  
                                                                                                                                     s(t)


                                                                                                                                                                                                                                                                                               ||


                                                                                                                               4                                                                                                                                                              1      5
                                                                                                                       

                                                                                                         

                                                                                                                                                                                                                                                                                         



                                                                                        

                                                                                                                                                                     OOC  

                                                                                                           F 1                                K                   l
                                                                                                                                                        for  
                                                                                                                                                                            0
                                                                                                 ??                            ?                                      =
                                                                                              x, x??
                                                                                            Z l                   x x
                                                                                                 ?? =             n n + l =
                                                                                                           ?                   ?
                                                                                                           n=0                  ?  a
                                                                                                                                                                        
                                                                                                                                                                 1
                                                                                                                                                       for   l<F

                                                                                                           F 1
                                                                                            Zx, y?l??
                                                                                                  ?                                                        0
                                                                                                                                                    for  
                                                                                                  ?? =           xnyn + l   c                                     l   F
                                                                                                           ?
                                                                                                           n=0


                                                                  



                                                                                                                                                                              

                                                                                                                                                                                                                                                                           





                                                                                                                                                        1   K                                                                                                                            K    1


                                                                                                                                                                                                                           




                                                                                                                                                        1   K                                                                                                                            K    1


                                                                                                                                                                                                                                                                                     

                                                                                                                                                    



                                                                                                                                                                                                         


                                                                                                                                                                                                             Tc
                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                                                                   t


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                                                                   t
                                                                                                                              



                                                                                                                                                                                                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                   t

                                                                                                                                                                                                                                                                   
                            t
                                                                                                                                                                                                                                                                                                                                                                                
                                                                    
                                                                                                                                                                                                                                                                                                                               



                                              Prime              

*                                  

                                       ????????????
                                       ????????????????????????????????
                                       ????????????



                          Prime                         C5i

                                                    P2                               
           P = 5

      i             SP                                           5
                     i                                          Ci
0              00000    0000    0000    0000    0000    0000
0   234    0000 0   000 00   00 000   0 0000 2        024   3    0000 00   00 0000 0   000 000   0
      3        03   42    0000 000   0 0   000 0000    00   00
4        0432       
                                           0000 0000 000   0 00   00 0   000



                                  Prime                C7i

                     P =                                       P2                                                       

      i       SP                                                7
                i                                             Ci
0          0000000    000000    000000    000000    000000    000000    000000    000000
           0   23456    000000 0   00000 00   0000 000   000 0000   00 00000 0 000000  
      2    0246   35    000000 00   0000 0000   00 000000    0   00000 000   000 00000 0
      3    03625   4    000000 000   000 000000    00   0000 00000 0 0   00000 0000   00
4    04   5263    000000 0000   00 0   00000 00000 0 00   0000 000000    000   000
      5    053   642    000000 00000 0 000   000 0   00000 000000    0000   00 00   0000
6    065432       
                       000000 000000    00000 0 0000   00 000   000 00   0000 0   00000



5               3



5       5               
3       2



5       5                    
3       4



                                       2,1,0                                         n2/n1/n0 (P=5)


                i1 \ i2        0                                       2           3           4
                  0            -              0/25/0                0/25/0      0/25/0      0/25/0
                             0/25/0                            -    6/   3/6    4/   7/4    6/   3/6
                        2    0/25/0           6/   3/6                 -        4/   7/4    4/   7/4
                        3    0/25/0           4/   7/4              4/   7/4       -        6/   3/6
                        4    0/25/0           6/   3/6              4/   7/4    6/   3/6       -



                                                                                                             P   (w)



                                           (P-2)(P+ )
                                                         1
Pw( )
  w =                                                           (w)           2
                                                                            2P +P+2                         (P-2)(P )
                                                                                                                          1
                                                                       +                   w -                            +
                                                                                                       +                         w -
                                                    2                               2     (       )
                                                                                                  1                  2          (       2)
                                              6P                              6P                               6P



                                                       



                                                                       2
                                                                       P 1
                                                                            -              P 1
                                                                                                +                      P 1
P                                                               ( )                                                         -
                                                                w =                 w +                 w         +
                                                           2                       ( )     2                                       
                                                                             2                         ( - )
                                                                                                             1         2
                                                                                                 2                           2         (w - 2)
w  max                                                                 4P                  2P                          4P



                                              




                                                                               N - -
                                                                                 1 1i- 2i          1
                                                                                                   i         2
                                                                                                             i
                                                        N
 E
P =                                                (              )!
                                                                  1      1                    1         1
       1                                                                                                          Pr(i ,i ,   )
       2         ??                                        -                                                                     ?
                                                                        ??                  ?? ??
                          ?                                            ??                  ?? ??                  1 2          ?
            0 i i N             (N 1 i i )!i !i ! 4                                           2         4
                 1, 2   -1 ?                          ?                       - - 1 - 2 1 2 ??                          ?? ??                               ??
            1
            i + 2i N-1



                          CDMA                    



   CDMA                              
OOC                                          P=11  



   CDMA                              
OOC                                          P=31  



                                                                                                                                                                      

             CDMA