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KHOA ĐIỆN TỬ - VIỄN THÔNG _____________________________ TỐT NGHIỆP ĐẠI HỌC Đề tài: ĐIỀU KHIỂN CÔNG SUẤT TRONG HỆ THỐNG MC-CDMA !"#$%& Nghệ An, 5 - 2011 1 LỜI NÓI ĐẦU '()*+,-./01234553/6-78)9! 6':;94$<=':>8?>"@(0(AB5") C3'@'@0-(A"-D8+E1F<+GH0I3,3 J'3/J5 -><H"-D->B/+D<=':$ K3B<=':->"L'>'(B6!-:->'>616 6<?>=M'3/J5-><H9*'D15"./B A(NCB5(B,3O$ (A-D?>=M53/66B/<P3D'QJ3 B(-R?>1553/6S>"C>G,TM0-D'D 9*59U!A0-J31-V'3/J>/-W+D=> 8B=-DX3>CA?>=R3$ 63Y>#TZ"PM-HT8+>'3/JM( )"UPB/[M3<=T\8-D<KA<>(H'QJ3 T(!TZ"PM->T8+>0]<1<.>@(,TM '>(^_`abcCB+D'() <=<->-;X3>.+-: X3/6Q-JB/$K31234]<1<.>@(,TM '>(^_`abc-;96-6d)*+ef?>61g'!0! )3-:+R(<]<'3/J")C3M-D>(-;'3/J T(T(!M-DQ<'=9*h<01 *(3T3Q<W>(0 1 *MCAS>"GCG,TM0-H B3X3 '(-J3 6B -J36R3VTZ"P34(=``0``$R[60 _`abB/B-;<=':'(="UPL5M-D>( @'@15"./05"-Di0+Ajk15"./0-;G CB+3l(M<=>TM$a(-8_`ab->'EB5 -;Q<4+D='D'7B=3l'3/J515"./ "-DT\-;TZ"PJ3H'(HC>$ 2 3/_`abI8)9QC;T(!M-HT8+> A/!L3<>B,TM(SST@0gTM5T3Q-m'5T3Q '39[>(T\!A3T3Q(A-D?>9D136-A`BQ -J-n9DI<KA<HM-HT8+>$:8:=<"P12 34B/I,< X3/6)Q-JnA?>MB/$ D"3?>-n=9>(n+oH: Hp$qrskt&ttksuvtw sux !3WX3>> y <H<> y <->'3/. z <B-J4<-6) 3-:+B;-:+?>> y <H<> y <$ H{$|}sqrsk~_`ab !3WX3>JM_`abB-J4<-6)3-:+ B;-:+?>1234_`ab$ H•$€~•‚sv_}ƒ_`ab [+:3J=C„./T+Q-n9DB+DTM<H<=< -n9D'(M_`ab$ Hi$ksuvt…_†ƒ‡k__`abk [+:3JT1=>3H9 )>_`ab B_`abk0 +DTM <H<=<->'3/4<B3;-:+?>8$ Ho$bˆ‰Ša‹Œkw}_`ab [+:3K"P?>_`ab'(M'3/J[TM+* z -. y a•Ž0B'(+A•bk•$ 3/-78J3MF#‘J363T8,9WT3B <=':+(X3’,/5B=9Am9 (+$ …+“.B +HX3’,/5'(•(>ZŽL50 -9CB5=(ŽT$3/LUr3”(>-7!"#@+(BB -n=B/$ Vinh, tháng 05 năm 2011 Đặng Như Ý 3 MU ̣ C LU ̣ C j•†s$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$p b‹j‹$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$• •b–$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$— ak˜™$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$e ak•š•›s$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$œ sv•x–$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$pf Hp$qrskt&ttksuvt wsux$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$p• p$p$!3H$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$p• p${$>'3/. z <@(. ž T5 y $^`abkc$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$p• p${$p$3/C’`abk$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$p• p${${30H z - 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