Tải bản đầy đủ (.docx) (19 trang)

Tiểu luận mô hình truyền sóng HATA

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (482.64 KB, 19 trang )



Chương 1 : Tổng quan các mô hình truyền thông tin di động
Chương 2 : Các mô hình truyền thông tin di động




Chương 3 : Mô hình HATA
 !"#
$"%&"'(!)*+
&+,! &/"0
&+,! &$+1
&+,! &$"
&+,! &#2
34!/5(!)*+"6!)7(8$"6+$&&,! &
1&9&:*#
Chương 4 : Kết luận
;
<=>
LỜI NÓI ĐẦU
?$@#$A/B)C-D(.E""64&:*-7,"9FG&:*/H"ID&"J&/KL
/18*"1&&/"0-M/"08*NO6*#1#P7!&$"6&*+J&#Q&RS"6+$
&&"MEJRDC/5$"T&U$F!H"L7!&$"6$A#C&$"6&8&H!"6V&
E%&"1EI"W*M-@EW$C,&(1C&!$&I&*+&HEX1&&&$"6M)&8
)S!&A!RD-7"$"-MRI!RIY$"$"ZS!&A!&*+-7&H"RIY$E[&-[&:*L
"J$8&!$-M"$"-"!)9N/K$86S$
!)SCN+/\&/4#E%&"1E&:*&H!"6V&&$"6&]$-D(."9!/5$^K,
FB)N.$&$"6&I*"'/9&&)9!"JE:(8$N/K$S"'L!N/K$,_#C"5
"17!/4##](8$C&!)4$*+C&H"RIY$&!K&$Q"HEX`D&&R'N+"6SC-L&FB)
N.$L"$E:(8$"6+$&$"6M)/a#^a+&H"RIY$E[&-[&:*#1$N/K$


RM9"(%&&A"9"
A!9"&&L"J$N/K$+1"/K$2,! &/"0,$&8/IT$"6!)7"6.&
"9E"b#)E"/9#)"!-M"1?$c&8&&&*+J&$B)6*(!)*+N+O!F16H"
RDd+&87!L"IY$EaF1"b7!-0"6'S(8$/L"b/9#)"!"b7!
/IT$&8&7!NM,&*!$B)6*$*+"+*Re*!$QRMf*N$/*/IT$-MRM#$a#
&IT$/K(8$
&#"6!)7(8$"IT$"gE"6!$-M+-L&ID&"'#%&"'L!"!"6!$
^-D&.R)"'"b#)E"&U$I(."*)/h"'L!"6+$,$$*$A-0"6'
/*$F_"
`L&"'&IT$/K"6!$^&:*"'L!i#F&/0-]$E:(8$&:*#)E"
/IY&$QRM#NL6K$jR*6$k(&*Rkl-D,+a$&&"b-M"6@#/9-M$M#_"
\",&#"6!)7(8$/IY&/\&"6I$^2(."*)/h6H"*&:*&IT$/K
"'L!"6+$,+a$&&$m+\&"6+$"T$*$m/IY&$QRM#NLnE
+\&#f*N$
6+$^M-9"M)&V$k#/7&gE"D#"6!)7(8$/8RMo




d+&I*&8,$L#S^a^+&+&W7!"9!F8"C6H"#+$g/IY&RT$8Ep
"b !p"A)&-M^1/Q&
q&B"M&a#c
8#(-S
Chương 1 : Tổng quan các mô hình truyền thông tin di động
6+$ !"6EB"'&(.R*"6!)7(8$-"!)9&:*L"J$"$"N/K$C#K"
"*#(J/IY& !*"B#H"RM(!)*+/IT$"6!)7
J/+(!)*+/IT$"6!)7RML!(J$?*&$(!H"E"-M&IT$/K"6IT$"6!$^
&:*"'L!"!/IY&
IT$/K"6IT$&:*"'L!"!/IY&RM(J/+^S/K"'L!"Ic$/J"1"A(J(8$
#*$E"IT$/K"6IT$"1&&-0"6'#)"!N/K$"@$$$NID"&/K$&:*

7!L"IY$/*/IT$&/\&"'-M/K,$/7!&:*/0*-M&&-g""F1NQ&
"k+/IT$R*"6!)7&8F!ID$EB"@$RIY$(8$"DC$8EEA-M+"h$(!)
*+/IT$"6!)7
])"k+"b$-]$C(.,&*!-7/0*-M&&/\&"'&:*&&-g""F1S&&(!)
*+/IT$"6!)7(P,&*!N./+(!)*+/IT$"6!)7&+#K"#"6IT$-
"!)9N/K$&V$"*R!Ea !*"B#"D&&)9!"JM)
!)*+/IT$"6!)7RM(!)*+&c^a"6+$ !"6 "6!)7NeE["!K&"A(JC
,+a$&&"6!)7(+$-M#"6IT$"6!)7(8$`-g)/4"'"+(!)*+/IT$
"6!)7&AEa&8&&#"'"+(!)*+E]YEI&&#"'"+
(!)*+"IT$N]$RM#C#C#C#

• ,!#!6*"'"+#K"&&L"J$/J-D&&R+1/0*,&*!-M
&&#"6IT$,&*!
• rs*Rt(r,k$*#oID&RIY$(!)*+/IT$"6!)7"6+$#
"6IT$/"0C-DNa"ARM#-L&"bu/9v
• *"*/IY&FB)N.$N.*"6S(!)*+/IT$"6!)7$?*&&*"k(+"6+E&

Chương 2 : Các mô hình truyền thông tin di động
2.1 MÔ HÌNH OKUMURA
,!#!6*-M&&&K$(.&:*#/G".&L#K"R+1"&&/+/1&#26K$^S"6+$
-MF!$ !*"MEJ+,)+"1&&"A(JRS/9wvQ/G&$^J#K"EIc$
EEN./+,$L#"6+$-L&N./+&IT$/K"'L!J"Rx&:*EIc$EE
M)RM"h*+/IT$"6!)7"6+$,$$*".N+$?*&&/4# !*"6Q$/G/IY&F&
/0-M/IY&&K$-D$"60
#!
jfCNlC$"60M)/IY&F&/0"b-P

#!
jfCNlRM"h*+"6!$^&8 !*L-D,$$*".N+"6+$#K",! &/"0"6S
#K"/0*"Ic$/J^i$Ey$-D#K"&7!&*+L!N[$&:**"k"61#$J&

"k
RM
#-M&7!&*+*"kN/K$
6k
RM#

#! 
jfCNl/IY&#S!"aI#K"M#&:*"A(Jjrvl-M,+a$&&"'"b
"61#$J&jz,#l&L(JL!&{Ea/IY&/I*6*/4"'&+&&*"k,$&8
/IY&/K&*+I&&/K&*+$D"L!`M&$"%&&c^a&:*,|"!g"M)&8"4/IY&^4!
NOI(*!o

}
jN3l~

€
#!
jfCNl€
"!
€
6!

6+$/8o

"!
RML(J"@$'&&7!&*+&:**"k"61#$J&8/IY&&+"H)"6+$jlIRM
#K"M#&:*&7!&*+L!N[$&:**"k"61#$J&-M,+a$&&•

6!
RML(J"@$'&&7!&*+&:**"kN/K$-M8/IY&&{6*"6Sjl

jl&+"H)6i$
6!
&8^g&N3‚Nk&*NkC$|*RM&$(!H""'L!"!/IY&"{RL-D

"k

CE]YE-D&$"%&"6!)7(+$"6S/H"Ey$b-Pjl"6x6M$6i$

6!
&8#J !*L-D
6k
9!
6k
ƒ#•"!)S
6!
&{"*)/hN3‚Nk&*Nk9!
6k
„#
S#?*C&&L(JL!&{&U$/IY&/I*6*C"k+N1$/5"0C/4&+E_E"6!)7
(8$"6SEJ$J$I"6!)7(8$"6+$&&,! &$+1C,! &#2j$"l-M
"6S/0*,$/5$/7!&L(JM)/W…Ea/IY&&K$"S#*)"6b/#K"&&
"'&YE$+M6*C/0*,$/5$/7!R1/IY&&*…6*"M/0*/5NJ&C
&&$QV6S$R†C/0*NJ&8&!$-M/0*‡YE/H"-D^4
oc(2"h*+/IT$"6!)7"6!$^ !*L-D,$$*".N+"6+$,!
&/"0"6S/0*"Ic$/J^i$Ey$j"k+,!#!6*l
&"*#(JRS !*/9/0*&AEa/IY&/$&&L(JL!&{^9/h
I(*!o
oL(J"@$'&&7!&*+*"k3"6+$&*&,! &/"0IRM#K"M#&:*
,+a$&&j&7!&*+"*#,a+RM#l
oL(J"@$'&&7!&*+*"kN/K$"6+$$&&,! &/"0IRM#K"M#

&:*"A(J-M#%&/K/"08*j&7!&*+"*#,a+RM#l
oEIc$EE"'"+&7!&*+*"k"61#$J&L!N[$
7!&*+*"k"61#$J&L!N[$j
"k
loB)RM&7!&*+&:**"k3"6S#%&/H"
"6!$^/IY&"'"6S,+a$&&"bz},#j+\&…c9!,+a$&&…c
},#l"k+ID$"D#)"!
7!&*+HE&:*/0*jˆloB)RM"*#(J8RS(.,$/5$/7!&:*/0*
/IY&/0$|*RM&7!&*+,$/5$/7!/IY&/I*6*"6S,+a$&&,#"b
#)"!"k+ID$"D#)E"
7!&*+/{Vo9!/IT$"6!)7(+$^*+$5#&8#K" !aV&m"&7!&*+
/+/IY&&:*8&8 !*L-D#%&/H""6!$^$?*8-D"61#$J&
KNJ&"6!$^o9!#\"/H"RMNJ&8&!$"$8&‰j&8"4B#+\&NIc$l
/IY&/+"6S,+a$&&"b}z,#
*#(J/IT$"6!)7^4r/H"‡YEoB)RMEA"6@#&:*"h$&7!NM/IT$
"6!)7/IY&^*+E:^2ID&
,!#!6*RM#K"#/IY&(ŠN[$6K$6G8/IY&(ŠN[$IRM#K"
"S!&!‹(+(&+&&#,&C"bRV&/8"8/IY&(ŠN[$&+(.^9/h#1
&:*/IT$"6!)7-"!)9,$&{&+,! &/"0#M8&W&+&&,4!/0*
,&*!?*M)&U$/IY&(ŠN[$&+#)"'#K"&&NONM$
2.2 MÔ HÌNH COST 231- WALFISCH-IIKEGAMI
/7F!H"c?*#K",9"YE$?*&&#s*Rt(&-*,k$*
M)"MN.*"6S&&/8$$8E,&*!&:*&&"M-S"6+$Œ8#$S
&%!&&#"6!)7(8$&:*N.•C/IY&$QRM#zs*Rt(&z
,k$*#jzslM)&+E_EID&RIY$"h*+/IT$"6!)7,Žc"$
!*-L&F_"7!N?RL!/\&"a#"6IT$/"0c^*+$5#o
zK&*+&:*&&"W*M
zK6K$&:*&&&+/IT$•
z•G&&&&"W*M^
zID$/IT$EJ(+-D/IT$"6!)7-"!)9"6.&"9E‘

&"*#(J&:*#M)/IY&/0$|*"6S&&-P-M!)S
&&#M)&{RM#"J$,S#M,$EaRM#4"0"7/0-&{
?$$"60/\&"6I$#D&8"4/IY&&’-M+-M,$#K"&c(2N?RL!-7/0*&:*
?$"W*MM+/IY&F_"/9
"61$"6!)7(8$/42&&,! &/"0-M/0$|*&&
"*#(JN]$"6+$#zs-M&&#,4!s*Rt(&,&
zs*Rt(&z,k$*#EB^L"$?*&&"!J$"6!)7-M
6+$"6IT$YEj$?*&&@$z"k"61#$J&-M#)N/K$i#"6+$#K"†#EJlC
N.*"6S&&/+RIT$2"MEJ("+&,+R#C#K"&$"%&"h*+/IT$"6!)7/c$a
,&-D"h*+"6+$,$$*".N+(P/IY&EN[$o
jN3l~C“€“R+$jN‚,#l€R+$jf‚vl-DN#jl
6+$/8Ci$(J/A!"S/IY&F&/0(*+&+^i$"h*+,$$*".N+2
N~#
6+$"6IT$YEC"h*+/IT$"6!)7&c^a^*+$5#"h*+,$$*".
N+C"h*+N+O!F1/*#M&kC-M"h*+"F1rO!F1"b/{#MF!J$
/IT$EJ
~j}l

h*+,$$*".N+/IY&&+^2o
jN3l~C€R+$jN‚,#l€R+$jf‚vlj“l
1RIY$#"a(."9EJ&:*"6!)7R*(8$NQ&"k+/IT$"6!)7/*#M&k
F!J$&+EJ&8#)N/K$`L&F&/0&:)9!/IY&N.*-M+#,k$*#&8"'
/9/K6K$-MID$EJ"!)-g)R1EN[$M#ID$EJ,&-D#
,k$*#o
~z“wzR+$€R+$€j”l
~jul
~z
~zjwl
q&/0$8&ID$EJ‘
$"%&/L"b-ID$&:*O!F1/*

#M&kNe/9#K""'&EB#M-D"'&E*/8
s*Rt(&-M,k$*/G&$^J#K"RT$a$A/V$"6+$"6IT$YE@$z"k"61#$J&
&*+&8&7!&*+"HEc/{&:*"W*M^i$&&(ŠN[$M#(J,$L#N.*"6S
&&/+RIT$7!&*+&:*&&"W*M-MEB&&,$$*$?*&V$NQ&"k+
/IT$"6!)7(8$6*N+/IY&#8*^2?$#MHE"[/J-D-L&F&/0
2.3 MÔ HÌNH IMT 2000
•"k6k"+*R+^RkkRk&+##!&*"+(f+6)k*6oL"J$"$"N/K$"+M
&A!&+@#–
2.3.1. Đặc điểm của IMT-2000 so với các hệ thống
zzRML"J$"+M&A!#*$"',9"YE&:*7!L"J$"6S"9$D
z)/A!&!J…$QC(ŠN[$/Y&2#Qc"6S"9$DC/5$"T‡"6Y7!R+1
#)/A!&!J,&
zŠN[$#K"N"A&!$"6S"+M"9$D
z8,a@$6+*#$"6S"+M"9$D
zL"J$&&"9"^0"Ic$"'&-D"S!&!‹L"1
z8"4&!$&HE&&"'@$‡"6Y"+1-MN?RL!"S"9c&&&$$L"6ID&
zH"RIY$N0&-[&*+cC/\&^L"RMN0&-["+1
zH"RIY$-M/K"'&YE&*+"c$/Ic$-D#1$&J/0
2.3.2. Các tiêu chuẩn công nghệ của IMT-2000
&L"J$"$"N/K$"%^*+$J#o•Cz“Czw}d-M;d6+$ !
"6"9",9&&L"J$"$"N/K$"9L^*C&&L"J$"9L/G/IY&&&&c
!*"S!&!‹8*&:*"b$-]$Fk#F_"/4/I*6*&&/7F!H""Ic$"'&!)9$0
z}”/I*6*“"S!&!‹&$$L&+$*+NL"6!)&gE-"!)9&:*"M
EA#\"/H"&:*&&L"J$zj"S$Q#1$•&:*lC^*+$5#o
1 zdd6k&" E6k*Nj"6a Eh "6.& "9El C "IT$ /IY& ^9" NID"S
sd
2 zd!"z*66k6j7!(8$#*$lC/B)RMES^a•&:*L"J$z
w}jL*)$QRM&N#*kl
3 zddd
4 zd$Rkz*66k6j#K"(8$#*$lC&&L"J$"!K&8#M)/IY&

E""64"bL"J$•L&8RS•€j/IY&$QRM—d•—l
5 z•d‚dj"T$*"A(JlC/B)RML"J$&&"9"^^˜,_+NM"!S
^*+(J2&B!™!
6 z•dddsj"IT$/IY&^9"NID"SsqN/K$l
‡"S!&!‹"6+$“"S!&!‹&$$LS!"6S/7!/IY&#K"(J&$")RD-M#K"
(J !J&$*&87&$$LE/L"ŠC-O"$E""64:$K-M6*(%&-g/K$&
"S!&!‹M)&1"6*$*)$m"-D*!"6+$-L&&9#R|"0"6IT$"$"N
/K$6+$/8&8&$$L/IY&^9"/97!H"-ME""64"M&$RM
sdCdF—`zd-MsqN/K$
2.4 MÔ HÌNH HATA
Chương 3 : Mô hình HATA
3.1 KHÁI QUÁT MÔ HÌNH
*"*FB)N.$"6S,$L#C/V&6V""b#,!#!6**"*
&!)4/h&&"$"-7(!)*+/IT$"6!)7&8"'Q&&:*#,!#!6*
(*$&$"%&"+Q&
h*+/IT$"6!)7/IY&#8*2/B)RM/J-D&&-]$$+1&:*
g"3aC,$E]YERm#-D&&-]$$+1&:*3m&Ž
M)/IY&FB)N.$"6S(!)*+/IT$"6!)7$?*&&*"k(+"6+E&CI$
8&U$F_"/9&&"$(J,&I&7!&*+&:*&K"*"k"61#3C&7!&*+&:*
*"k0*"6+$#/IY&$a"9"RM,^i$Ey$C,$&8^H""IT$
3.2 CÔNG THỨC TÍNH SUY HAO
&+,! &/"0
$"%&/IT$(!)*+"6!)72,! &/"0I(*!o


}
j!6^*ljN3l~“w}}€““R+$f
&
ruR+$j^lr*j#l€jwr“}}R+$
^llR+$jNl

6+$/8o
f
&
oRM"b}"D}v
^

oRM&7!&*+&:**"k*"6!)7/c-0#NM"b"D#
#

oRM&7!&*+&:**"k*g/c-0#NM"b"D#
NoRM,+a$&&rj,#l-M*j
6k
lRML(J/7!&{&7!&*+*"k*N
/K$
L(J/7!&{&8&$"%&I(*!o
*j
6k
l~jR+$f
&
r”l
6k
rj}“R+$f
&
rulN3
šlJ-D"MEJRDo
*j#l~uwjR+$}#l

rN3,f
&
„~v

*j#l~jR+$”}#l

rw”N3,f
&
ƒ~v
šlda"$(JEN[$&+#*"*I(*!o
}„~f„~}v
„~^„~#
„~#„~#
„~N„~,#
&+,! &$+1
*"*#&+,! &$+1"M/IY&FB)N.$I(*!
›/B)


~#H"&+/IT$2-]$$+1c-0"'oNk&^kRjN3l


~#H"&+/IT$"6!$^"6+$,! &/"0&+"MEJ…c-0"'oNk&^kR
jN3l
f~"A(J&:*"6!)7Nec-0"'o#k$*k6"vjvl
A(Jo}vz}•v
&+,! &$"
`D-]$$"L(JL!&{(!)*+(+-D-]$"MEJRMo

"
~
E
rC”ujR$f
&

l

€uCjR$f
&
lzCwjN3l
&+,! &#2
&#*"*&+&&,! &#2/IY&FB)N.$I(*!o
2/B)o
• 

~#H"&+/IT$"6+$,! &#2c-0"'oNk&^kRjN3l
• 

~#H"&+/IT$"6+$,! &/"0&+"MEJ…c-0"'oNk&^kRjN3l
• f~"A(J&:*"6!)7Nec-0"'ok$*k6"vjvl
A(Jo}v/9C}•v
3.3 BIỂU ĐỒ SUY HAO TRUYỀN SÓNG TRONG CÁC KHU VỰC
^4!NO/IT$(!)*+&:*^J-]$o-]$"MEJRD•-]$"MEJ
…-M"6!$^•-]$$+1•-]$#26K$
b-P"*&U$&8"4"H)(!)*+RDH"2,! &"MEJRD-M(!)*+…H"
2-]$,! &#26K$N+/\&"'/0*!)*+&:*#‡-]$E["!K&/0*#
"6IT$"6!)7(8$&:*-]$/8
h*+/IT$"6!)7"k+#*"*
h*+-IY" !,&^L"(+-D"h*+/IT$"6!)7*"*j"1/4#"*#,a+
^~#C#~#lC-M"h*+"6+$,$$*".N+
L(JL!&{&+&7!&*+"61#3L(JL!&{&+&7!&*+"61#
3.4 HẠN CHẾ CỦA MÔ HÌNH HATA
€l\&N]N.*"6S#,!#!6*CI$#*"*,$&!$&HE"A(J&+"+M
^KE1#-"A(J^*+E:^2#,!#!6**"*,$-IY" !"A(J
}v"6+$,#+,!#!6*&!$&HE‡"6YRS"Dwv+a$&&"b

"61#&c(2,+a$"bz,#C&7!&*+*"k"b#z#&+"H)(JRL!RDc(+-D
&&#,&
€l`L&#*"*/IY&$a"9"RM,^i$Ey$C,$&8^H""IT$C-M^… !*a
I2$/K6K$/IT$EJC"F1EJ-M&&(!)*+"F1RM#&+-L&"'(!)*+/IT$
"6!)7&{E]YE-D#"6IT$"MEJC"6+$,&&#,&&8"4/IY&N!$
"'(!)*+&+&&-]$,&


Chương 4 : Kết luận
*!#K""T$*RM#-L&C8#&V$k#/G+M"M^a^+&+CKN!$&:)9!
&:*^a^+&+$S&%!-7&&#"6!)7(8$"6+$"$"N/K$
3+&+/G"6^M)/IY&, !"-7^J&a"6!)7"$"N/K$$M)*)&U$I
S!/IY&&&/\&/4#"6!)7(8$CN./+"h*+&:*#"6!)7(8$&'C/8RM
CCC
‡#,&*!&8/\&/4#CE1#-C,a@$E:(8$"Ic$%$-D"b$/0*
-g"Rp
b/86*/IY&&H"RIY$&:*&&#&U$I$D1&:*&V$
`L&".&L^+&+M)C$VE&V$k#&:$&J,9"%&"6SRDECB$&*+,|@$RM#
-L&8#C,|@$RM#-L&-D?$-H/7#D
d]&J$m$6H"7!I$N+"6/K1&9C"MRL!&:)9!RM"9$ID&$+M7!R'
"!)9"S^+&+,$"6,…?$(*(8"
'#+$"A)/$-M&+&V$k#?$RTgF_" !p^!H"
—#F&B"M&a#cœ
TÀI LIỆU THAM KHẢ O
1. L"J$"$"N/K$
2. ;*"R+((Nk"k6#*"+!($+,!#!6*z*"*#+NkR*N&!^&6k$6k((+
f+6#(($N*"*f+6+#*
3. &#"6!)7(8$
4. +Ff+6Nk$R(f+6kRk&"6+&("&$a•k6&•RkN$˜+#&—•*
5. ;B"'&-* !+1&-]$E:(8$#1$"k6k",$N1)^i$6K$

(ŠN[$&•3“R
6. 8#"m"R!g-@jSž!*$l
7. d)("k#(—$kk6$*N^++,j6"k&+!(kl
8. EEkNF
9. ;*"R+((Nk"k6#*"+!($+,!#!6*z*"*#+NkRf+66+!6,kR*"&
$aj—l

×