7.4.yyao.ps

是multiuser detection 这本书的习题解答, 很有用的书.

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E end
%%EndProlog
%%BeginSetup
%%Feature: *Resolution 300
TeXDict begin @letter
%%EndSetup
%%Page: 1 1
bop 634 482 a Fj(Solution)21 b(to)h(Problem)f(7.4)843 602 y
Fi(Yingw)o(ei)15 b(Y)l(ao)827 700 y(April)g(22,)h(1999)262
853 y Fh(In)d(the)i Fg(L)p Fh(-dimensional)d(mo)q(del,)f(the)k(receiv)o(ed)g
(signal)e(is)647 983 y Ff(r)e Fh(=)h Ff(SAb)c Fh(+)i Fg(\033)q
Ff(m)i Fh(=)1000 931 y Fe(K)982 943 y Fd(X)983 1033 y Fe(k=1)1049
983 y Fh(A)1080 989 y Fe(k)1100 983 y Fh(b)1123 989 y Fe(k)1142
983 y Ff(s)1161 989 y Fe(k)1190 983 y Fh(+)e Fg(\033)q Ff(m)p
Fg(;)262 1111 y Fh(where)19 b Ff(s)405 1117 y Fe(k)443 1111
y Fh(is)f(a)g(L-dimensional)e(v)o(ector)j(whic)o(h)f(denotes)i
Fg(k)q Fh(th)e(user's)i(spreading)e(co)q(de.)262 1161 y(The)c(m)o(ultistage)e
(detector)j(is)718 1248 y(^)720 1259 y Fg(b)738 1265 y Fc(k)769
1259 y Fh(=)d Fg(sg)q(n)p Fh(\()p Ff(s)913 1241 y Fe(T)913
1269 y(k)940 1259 y Fh(\()p Ff(r)d Fb(\000)1026 1219 y Fd(X)1030
1308 y Fe(j)p Fa(6)p Fe(=k)1093 1259 y Fh(A)1124 1265 y Fe(j)1138
1248 y Fh(^)1137 1259 y(d)1160 1265 y Fe(j)1172 1259 y Ff(s)1191
1265 y Fe(j)1203 1259 y Fh(\)\))262 1393 y(When)14 b(using)f(con)o(v)o(en)o
(tional)g(\014rst)i(stage,)851 1473 y(^)843 1484 y Fg(d)865
1490 y Fc(j)894 1484 y Fh(=)d Fg(sg)q(n)p Fh(\()p Ff(s)1038
1467 y Fe(T)1038 1494 y(j)1064 1484 y Ff(r)p Fh(\))p Fg(:)262
1575 y Fh(When)i(using)f(decorrelating)i(\014rst)f(stage,)824
1656 y(^)816 1667 y Fg(d)838 1673 y Fc(j)867 1667 y Fh(=)e
Fg(sg)q(n)p Fh(\(\()p Ff(S)1035 1650 y Fe(+)1063 1667 y Ff(r)p
Fh(\))1099 1673 y Fe(j)1111 1667 y Fh(\))p Fg(;)262 1758 y
Fh(where)j Ff(S)409 1743 y Fe(+)449 1758 y Fh(is)f(the)h(Mo)q(ore-P)o(enrose)
g(generalized)g(in)o(v)o(erse)f(of)g Ff(S)p Fh(.)967 2574 y(1)p
eop
%%Trailer
end
userdict /end-hook known{end-hook}if
%%EOF