5.materi 5 - propagasi

7/26/2019 5.Materi 5 - Propagasi

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PT3163-SISKOMBER-MODUL:05

Modul : 05

SISTEM KOMUNIKASI BERGERAK

Propagasi Gelombang Radiopada Sistem Cellular


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Model Propagasi

Sis!e" #o"$%i#asi&ergera# a!a$ &iasa di#e%al de%ga%s's!e" (ell$lar "e%gg$%a#a% gelo"&a%g radio se&agai"edia $%!$# "e%g#o%e#si#a% a%!ara pera%g#a! sa!$de%ga% 'a%g lai%)

Pada #o%sep #o"$%i#asi de%ga% gelo"&a%g radio i%idi#e%al s$a!$ "ode propagasi)

Propaga!io% "odel a!a$ "odel propagasi adala* s$a!$(ara $%!$# "e"predi#si da'a si%'al ra!a-ra!a)

+da !iga "e#a%is"e do"i%a% dari propagasi padasis!e" #o"$%i#asi &ergera# ,"o&ile 'ai!$ pa%!$la%,re.le(!io%/ di.ra#si/ da% *a"&$ra% ,s(a!!eri%g)

http://elektronikatelkom.blogspot.com/http://elektronikatelkom.blogspot.com/


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Model propagasi pada sis!e" !ra%s"isi radio #o"$%i#asi &ergera# a!a$sis!e" #o"$%i#asi sel$lar i%i diperl$#a% #are%a Kara#!eris!i# propagasi pada

ari%ga%&ergera# ,sel$ler &er&eda di&a%di%g#a% de%ga% #ara#!eris!i#propagasi pada ari%ga% !e!ap)

Pada ari%ga% &ergera# .adi%g 'a%g !eradi le&i* *e&a! da% .l$#!$a!i.

di&a%di%g#a% de%ga% ari%ga% !e!ap) Selai% i!$ &iasa%'a daera* 'a%gdila'a%i &er$pa daera* 'a%g !ida# !era!$r per"$#aa%%'a/ se*i%gga"odel propagasii%i dapa! dig$%a#a% $%!$# "e"per#ira#a% reda"a%li%!asa%%'a)

+da d$a "odel propagasi 'a%g seri%g dig$%a#a% $%!$# "e"per#ira#a%reda"a% li%!asa% sepa%a%g per"$#aa% daera* 'a%g !ida# !era!$r) ai!$"odel propagasi o#$"$ra da% "odel propagasi *a!!a/ %a"$% #are%a #ed$a"odel propagasi i%i sali%g "ele%g#api sa!$ sa"a lai% da% "e"ili#i#ara#!eris!i# 'a%g *a"pir sa"a se*i%gga #ed$a "odel propagasi i%i seri%g

dise&$! se&agai "odel propagasi O#$"$ra 2 a!!a)

http://elektronikatelkom.blogspot.com/2011/07/network-interface.htmlhttp://elektronikatelkom.blogspot.com/2015/02/penjelasan-mengenai-model-propagasi.htmlhttp://elektronikatelkom.blogspot.com/2015/02/penjelasan-mengenai-model-propagasi.htmlhttp://elektronikatelkom.blogspot.com/2011/07/network-interface.html


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Model Propagasi Okumura

Model propagasi O#$"$ra adala* sala* sa!$ "odel 'a%g !er#e%al da% pali%g &a%'a# dig$%a#a%$%!$# "ela#$#a% predi#si si%'al di daera* $r&a% ,#o!a) Model i%i (o(o# $%!$# ra%ge .re#$e%si a%!ara150-140 M da% pada ara# a%!ara 1-100 #" de%ga% #e!i%ggia% a%!e%%a &ase s!a!io% ,BS&er#isar 30 sa"pai 1000 ") O#$"$ra "e"&$a! #$r7a-#$r7a reda"a% ra!a-ra!a rela!i. !er*adapreda"a% r$a%g &e&as ,+"$ pada daera* $r&a% "elal$i daera* 8$asi-s"oo!* !errai% de%ga% !i%ggi

e.e#!i. a%!e%%a &ase s!a!io% ,*ig* !ra%s"i!!er e8$ip"e%! 00 " da% !i%ggi a%!e%%a "o&ile s!a!io%,*ig* re(ei7er e8$ip"e%! 3 ") K$r7a-#$r7a i%i di&e%!$# dari pe%g$#$ra% pada daera* 'a%g l$asde%ga% "e%gg$%a#a% a%!e%%a o"%i dire(!io%al &ai# pada Base S!a!io% "a$p$% Mo&ile S!a!io%)

Model Propagasi Hatta

Model propagasi a!!a adala* "odel 'a%g "e%gg$%a#a% &e%!$# persa"aa% e"piri# dari #$r7a

reda"a% li%!asa% 'a%g di&$a! ole* O#$"$ra/ #are%a i!$ "odel i%i le&i* seri%g dise&$! se&agai"odel O#$"$ra-a!!a) Model i%i 7alid $%!$# daera* ra%ge .re#$e%si a%!ara 150-1500 M) a!!a"e"&$a! persa"aa% s!a%dard $%!$# "e%g*i!$%g reda"a% li%!asa% di daera* $r&a%/ seda%g#a%$%!$# "e%g*i!$%g reda"a% li%!asa% di !ipe daera* lai% ,s$&$r&a%/ ope% area/ dll/ a!!a "e"&eri#a%

persa"aa% #ore#si%'a)

http://en.wikipedia.org/wiki/Hata_model_for_urban_areashttp://en.wikipedia.org/wiki/Hata_model_for_urban_areas


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Beberapa parameter yang biasadigunakan :

1. Radiator isotropik,. !aya radiasi isotropik e"ekti",

#. $"ekti" Radiated Po%er &$RP',4. Path Loss,5. Gain


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Radio Propaga!io% Me(*a%is"s

B$ildi%g Blo(#s

D

R

S

R: Re.le(!io%D: Di..ra(!io%S: S(a!!eri%g

transmitter

receiver

D

S!ree!


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,Re.le(!io% 9 Di..ra(!io%

Re.le(!io% (oe..i(ie%!

+"pli!$de a%d p*ase depe%d o%: re8$e%('

Proper!ies o. s$r.a(e ,s/ "/ e

orio%!al/ 7er!i(al polaria!io% +%gle o. i%(ide%(e ,!*$s/ a%!e%%a *eig*!


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,Re.le(!io% 9 Di..ra(!io% / (o%!i%$edT*e di..ra(!io% para"e!er vis

de.i%ed as

;*ere

hmis !*e *eig*! o. !*e o&s!a(le/a%d

dt is dis!a%(e !ra%s"i!!er -o&s!a(le

dr is dis!a%(e re(ei7er - o&s!a(le

T*e di..ra(!io% loss Ld/ e


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Lo%g dis!a%(e pa!* loss "odel

T*e a7erage large-s(alepa!* loss .or a% ar&i!rar'T-R separa!io% ise


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Pa!* Loss E


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E 8 $ a l l e 7 e l " a i % 9 r e . l e ( ! e d p a ! *

L o ; e r l e 7 e l r e . l e ( ! e d p a ! *

R x L e v e l

A i d e & a % d

* a % % e l

C a r r o ; & a % d

* a % % e l

F r e q u e n c y

C h a n n e l F r e q u e n c y R e s p o n s e

!

!

!

!

C h a n n e l P u l s e

R e s p o n s e

D i r e ( ! A a 7 e

R e . l e ( ! e d A a 7 eR e s $ l ! a % !

Si%'al "$l!ipa!* $ga a#a% "e%'e&aa% dis!orsi si%'al (a(a! si%'al)Pro&le" i%i se(ara #*$s$s &er#ai!a% de%ga% &a%d;id!* si%'al 'a%gdig$%a#a% dala" #o"$%i#asi "o&ile/ da% $ga #are%a respo% p$lsa

'a%g &er&eda dari si%'al "$l!ipa!*

Distorsi


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+DIC

F a d i n g

L a r g e S c a l e F a d i n g

S m a l l S c a l e F a d i n g

T e r d i s t r i b s i

! o g n o r " a l

T e r d i s t r i b s i # a $ l e i g h % # i c i a n

adi%g dide.i%isi#a%

se&agai .l$#!$asi da'a dipe%eri"a

Kare%a perila#$ si%'alpada #a%al "$l!ipa!*adala* a(a#/ "a#aa%alisis .adi%g"e%gg$%a#a% a%alisispro&a&ili!as s!o#as!i#

adi%g !eradi #are%a

i%!er.ere%si a!a$s$perposisi gelo"&a%g"$l!ipa!* 'a%g "e"ili#ia"pli!$do da% .asa 'a%g&er&eda-&eda

Definisi


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KANAL MULTIPATH FADINGKANAL MULTIPATH FADING

FADING :(enomena)uktuasi daya sinyal terima akibatadanya proses propagasi dari gelombang radio.

Pengaruh fadingterhadap level sinyalterima adalah dapatmenguatkan ataupunmelemahkan tergantungphasa dari sinyalresultan masing-masingpath.

C

A

D

BReceiverransmitter

+: dire(! pa!*B: re.le(!io%: di..ra(!io%D: s(a!!eri%g

PR

PR_th!s

t"

M lti th F di t Sh t T F di


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Multipat! dalam kanal radio menye"a"kan #

Peru"a!an yang cepatdari a"pli!$da #$a! si%'al Modulasi frekuensi random&er#ai!a% de%ga% e.e#

Doppler pada si%'al "$l!ipa!* 'a%g &er&eda-&eda

Dispersi $aktu,e(*o 'a%g dise&aa% ole* dela'propagasi "$l!ipa!*

Li%g#$%ga% #a%al radio "o&ile , indoor / outdoor seri%g#ali!ida# !erdapa! li%!asa% gelo"&a%g la%gs$%g a%!ara T< da%R


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Definisi #local mean, time averaged dari 7ariasi si%'al

Large Scale Fadingdise&aa% #are%a a#i&a! #e&eradaa% o&'e#-o&'e# pe"a%!$l ser!a pe%g*ala%g pada #a%al propagasi ser!ape%gar$* #o%!$r &$"i/ "e%g*asil#a% per$&a*a% si%'al dala" *ale%ergi/ .asa/ ser!a dela' ;a#!$ 'a%g &ersi.a! ra%do")

Ses$ai %a"a%'a/ large scale fading "e"&eri#a% represe%!asi

ra!a-ra!a da'a si%'al !eri"a dala" s$a!$ daera* 'a%g l$as) S!a!is!i# dari large scale fading "e"&eri#a% (ara per*i!$%ga%

$%!$# es!i"asi pa!*loss se&agai .$%gsi ara#)

K $ a ! s i % ' a l , d B -

F a r a #


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adi%g Margi%

K $ a ! s i % ' a l , d B s e ! e l a *

d i ! a " & a * . a d i % g " a r g i % , : M

!

! e s ! o l d F M

adi%g "argi% depe%ds $po% !arge! availabilityo. !*e li%#(o7erage)

rea!er availabilityre8$ires larger .adi%g "argi%)

M d l R ' l ( l M lti t!


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R & S

v

d

Gariasi si%'al sesaa! ,small scalevariation si%'al #o"$%i#asi &ergera#

se(ara la%gs$%g &er*$&$%ga% de%ga%respo% i"p$lse dari #a%al radio%'a)

Respo% i"p$lse i%i "er$pa#a%#ara#!eris!i# #a%al 'a%g "e"$a!i%.or"asi si.a!-si.a! #a%al radio)

Kara#!eris!i# #a%al perl$ di#e!a*$i $%!$#"e%ge!a*$i $%$# #era sis!e"#o"$%i#asi dala" #a%al radio

Ka%al radio "o&ile "e"ili#i si.a! LinearTime Varying Channel

*,!


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( ) ( ) = += &

1' '0'r t2cosate

Sinyal terimaMS dia" s$da*

di%'a!a#a% :

)sumsi # (endaraan "ergerak terpengaru! efek Doppler

v

U%!$# MS &ergera#/ f* f

k/

#are%a .re#$e%si 'a%g di!eri"a$%!$# "asi%g-"asi%g li%!asa%&er&eda-&eda

( ) ( ) = += &

1' '''r t2cosatedimana%

'' cosv

=

)nalisis Sinyal Multipat!


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Doppler +ffect

A*e a !ra%s"i!!er or re(ei7er is "o7i%g/ !*e

.re8$e%(' o. !*e re(ei7ed sig%al (*a%ges/ i)e) H! isdi..ere%! !*a% !*e .re8$e%(' o. !ra%s"issi%) T*is is(alled Doppler E..e(!)

T*e (*a%ge i% .re8$e%(' is (alled Doppler S*i.!)2 I! depe%ds o%

T*e rela!i7e 7elo(i!' o. !*e re(ei7er ;i!* respe(! !o!ra%s"i!!er

T*e .re8$e%(! ,or ;a7ele%!* o. !ra%s"issio%

T*e dire(!io% o. !ra7eli%g ;i!* respe(! !o !*e dire(!io% o.!*e arri7i%g sig%al)



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sudut

'' cosv

(

=

( ) ''' coscosv

=

,ntuk penurunan lengkap Doppler spectrum% li!at pada#

Parso%/ Da7id/The Mobile Radio Propagation Channel/Pe%!e(* Press/144


Doppler Spread dan Coherence Time


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Doppler Spreaddan Coherence Time

Doppler shift -pergeseran doppler. adala* pergesera%

.re#$e%si 'a%g dise&aa% pergera#a% pe%eri"a) Doppler shift"e%i%g#a!#a% &a%d;id!* si%'al 'a%g

di!ra%s"isi#a%

Latar "elakang # Pergeseran Doppler - Doppler S!ift .


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Doppler spread% fm%adala* pergesera% doppler "a#si"$"

/o!erence ime% /:

0ika kecepatan sim"ol le"i! "esar dari 12// "a#a si%'al !ida# "e%gala"i dis!orsi #a%al'a%g dise&aa% pergera#a% pe%eri"a

"a#si"$"/ (os J 1


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Coherence Time Doppler spreadadala* $#$ra% perl$asa% spe#!ral ,Spectral

Broadening #are%a ada%'a per$&a*a% #a%al !er*adap ;a#!$'a%g dia#i&a!#a% ole* pergera#a%

Coherence time"er$pa#a% $#$ra% s!a!is!i# dari d$rasi ;a#!$di"a%a i"p$lse respo% dari #a%al "asi* &isa di#a!egori#a%

invariantda% "e%g#$a%!i.i#asi #esa"aa% respo% #a%al pada;a#!$ 'a%g &er&eda)

o*ere%(e !i"e $ga "er$pa#a% pada%a% dari doppler spreadpada do"ai% ;a#!$ 'a%g "e%$%$##a% le7el dispersi. .re#$e%sis$a!$ #a%al

mm

cffT

423)0

..16

9

== T

cJ (o*ere%(e !i"e)

fmJ doppler s*i.! "a#si"$"

P d l


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Pergesera% doppler

v = #e(epa!a% pergera#a% rela!i.J pa%a%g gelo"&a%g .re#$e%si

carrierJ s$d$! a%!ara ara* propagasi

si%'al da!a%g de%ga% ara*

pergera#a% a%!e%a i#a J 00/ "a#afd,max= fm= v/

cosv

fd=


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Doppler s!ift

+ll re.le(!ed ;a7es arri7e .ro" a di..ere%! a%gle+ll ;a7es *a7e a di..ere%! Doppler s*i.!

T*e Doppler s*i.! o. a par!i($lar ;a7e is cosfcc

v=f0

Ma


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Doppler S!ift 3 ransmitter is moving

!e frequency of t!e signal

t!at is received in front of t!e

transmitter $ill "e "igger

!e frequency of t!e signal

t!at is received "e!ind t!e

transmitter $ill "e smaller


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Doppler S!ift

T*e Dopper s*i.! is posi!i7e2 I. !*e "o&ile is "o7i%g !o;ard !*e dire(!io% o.

arri7al o. !*e ;a7e

T*e Doppler s*i.! is %ega!i7e2 I. !*e "o&ile is "o7i%g a;a' .ro" !*e dire(!io%

o. arri7al o. !*e ;a7e)


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Doppler S!ift 3 Recever is moving

7

l

d

S

cos2

1

cos2

2

cos

cos

v

tf

tvl

tvl

dSYSXl

XYd

d ==

=

=

=

==

=

:.re8$e%('i%(*a%geappare%!,T*es*i.!Doppler

:sig%alre(ei7ed!*ei%(*a%gep*aseT*e

+ "o&ile re(ei7er is !ra7eli%g .ro" poi%! !o poi%!


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Klasifkasi adingKlasifkasi ading

KlasikasiFadingberdasardoppler spread:

Slow fading

FastFading

Respo% i"p$lse dari #a%al &er$&a* de%ga% la$le&i* la"&a! di&a%di%g#a% de%ga% periodesi"&ol dari si%'al 'a%g di!ra%s"isi#a% a!a$&a%d;id!* dari si%'al ,Bs a$* le&i* &esardi&a%di%g#a% de%ga% doppler spread ,Bd

c44 s a!a$ &s 55 &d

Ka%al &isa dias$"si#a% s!a!is pada sa!$ a!a$&e&erapa i%!er7al si"&ol

Teradi per$&a*a% respo% i"p$lse #a%al

dala" sa!$ d$rasi si"&ol a!a$ (o*ere%(e!i"e ,T( le&i* &esar dari periode si"&ol ,Ts)

c5 s


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S M ) L L S / ) L +

F ) D ' 6 7

F L ) F ) D ' 6 7

B e r d a s a r # a %

a ! a s " $ l ! i p a ! *

i m e D e l a y

S p r e a d

B e r d a s a r # a %

a ! a s D o p p l e r

S p r e a d

F R + 8 , + 6 / 9

S + L + / ' : + F ) D ' 6 7

F ) S F ) D ' 6 7

S L O ; F ) D ' 6 7

B A s i % ' a l B A # o * e r e %

D e l a ' s p r e a d p e r i o d es i " & o l

B A s i % ' a l B A # o * e r e %

D e l a ' s p r e a d p e r io d e s i " & o l

D o p p l e r s p r e a d

o * e r e % ( e ! i " e p e r i o d e

s i " & o l

G a r i a s i # a % a l l e " i ! c e p a t d a r i

7 a r i a s i s i % ' a l & a s e & a % d

D o p p l e r s p r e a d

o * e r e % ( e ! i " e p e r i o d e

s i " & o l

G a r i a s i # a % a l l e " i ! l a m " a t d a r i

7 a r i a s i s i % ' a l & a s e & a % d

(lasifikasi

Small ScaleFading

PROP)7)'O6 MOD+L


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Macrocells

I% earl' da's/ !*e "odels ;ere &ased o%e"pri(al s!$dies

O#$"$ra did (o"pre*esi7e "eas$re"e%!si% 146? a%d (a"e $p ;i!* a "odel)

Dis(o7ered !*a! a good "odel .or pa!* loss ;as asi"ple po;er la; ;*ere !*e e


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O#$"$ra Model

L50,d,dB J L,dN +"$,./d 2 ,*!e 2 ,*re 2 +RE+

2 L50: 50!* per(e%!ile ,i)e)/ "edia% o. pa!* loss

2 L,d: .ree spa(e propaga!io% pa!*loss)

2 +"$,./d: "edia% a!!e%$a!io% rela!i7e !o .ree spa(e

a% &e o&!ai%ed .ro" O#$"$ras e"pri(al plo!s s*o;% i% !*e &oo# ,Rappapor!/page 151)

2 ,*!e: &ase s!a!io% a%!e%%a *eig* gai% .a(!or

2 ,*re: "o&ile a%!e%%a *eig*! gai% .a(!or

2 +RE+: gai% d$e !o !'pe o. e%7iro%"e%!

,*!e J 0log,*!e00 1000" *!e 30" ,*re J 10log,*re3 *reJ 3" ,*re J 0log,*re3 10" *re 3"

*!e: !ra%s"i!!er a%!e%%a *eig*!

*re: re(ei7er a%!e%%a *eig*!

E8$a!io% @0


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a!a Model

Galid .ro" 150M !o 1500M + s!a%dard .or"$la or $r&a% areas !*e .or"$la is:

2 L50,$r&a%/d,dB J 64)55 N 6)16logfc - 13)?loghte2 a,hre N,@@)4 2 6)55loghtelogd

;*erefcis !*e .er8$e%(' i% M

hteis e..e(!i7e !ra%s"i!!er a%!e%%a *eig*! i% "e!ers ,30-00"

hreis e..e(!i7e re(ei7er a%!e%%a *eig*! i% "e!ers ,1-10"

dis T-R separa!io% i% #"a,hre is !*e (orre(!io% .a(!or .or e..e(!i7e "o&ile a%!e%%a *eig*! ;*i(* is a.$%(!io% o. (o7erage area

a,hre J ,1)1logfc 0)>hre2 ,1)56logfc 0)? dB.or a s"all !o "edi$" sied (i!'

E8$a!io% @1


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Prediction Model


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(ele"i!an # "$da* dig$%a#a% , la%gs$%g di"as$##a% pada r$"$s adi

(ekurangan# !ida# ada para"e!er e#sa# 'a%g !egas a%!ara daera* #o!a/daera* s$&$r&a%/ "a$p$% daera* !er&$#a

Lu< =>%??@A=%1=log f

/31B%CBlog !

3 a-!

R.@EE%> 3 =%?? log !

log dLu< =>%??@A=%1=log f/31B%CBlog !3 a-!R.@EE%> 3 =%?? log ! log d

Di"a%a /

150 . 1500 M30 *T 00 "1 d 0 #"a,*R adala* .a#!or #ore#si a%!e%%a "o&ile 'a%g %ilai%'a adala* se&agai

&eri#$! :

Daera! kota

,ntuk kota kecil dan menenga!%

a,*R J ,1/1 log .2 0/> *R2 ,1/56 log .2 0/? dB di"a%a/ 1 *R 10 " ,ntuk kota "esar%

a,*R J ?/4 ,log 1/5@*R2 1/1 dB .300 M

a,*R J 3/ ,log 11/>5*R2 @/4> dB . 300 M

OkumuraGHata Prediction Model

Prediction Model


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Daera! Su"ur"an

= 4,528

flog2LL

2C

usu

Daera! pen !rea

94,40flog33,18)f(log78,4LL c2

cuo +=

OkumuraGHata Prediction Model

Prediction Model


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Mer$pa#a% .or"$la pe%ge"&a%ga% r$"$s O#$"$ra a!a $%!$# .re#$e%si PS ,

/OSGAB1 - P/S +xtension Hata Model.

MTRT($ -logd6/55log*,@@/4-a,*log*13/?-,log.33/4@6/3L ++++= MTRT($ -logd6/55log*,@@/4-a,*log*13/?-,log.33/4@6/3L ++++=

,ntuk kota kecil dan menenga!%a,*R J ,1/1 log .2 0/> *R2 ,1/56 log .2 0/? dB

di"a%a/ 1 *R 10 " ,ntuk kota "esar%

a,*R

J ?/4 ,log 1/5@*R

2 1/1 dB .

300 Ma,*R J 3/ ,log 11/>5*R

2 @/4> dB .300 M

dimana %

dan%

M J0 dB $%!$# #o!a "e%e%ga* da% #o!as$&$r&a%3 dB $%!$# p$sa! #o!a "e!ropoli!a%

1500 . 000 M30 *T 00 "1 d 0 #"

a,*R adala* .a#!or #ore#si a%!e%a "o&ile 'a%g %ilai%'a se&agai&eri#$! :

Prediction Model

Prediction Model


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/OSAB1 ;alfis! 'kegami Model/ostAB1 ;alfis! 'kegami Modeldig$%a#a% $%!$# es!i"asi pa!*loss $%!$#lingkungan ur"an$%!$# ra%ge .re#$e%si sel$ler ?00 *i%gga 000 M)

Aall.is(*I#ega"i "odel !erdiri dari 3 #o"po%e% : ree Spa(e Loss ,L. Roo. !o s!ree! di..ra(!io% a%d s(a!!er loss ,LRTS M$l!is(ree% loss ,L"s

LJ

L.N LRTSN L"s

L. = $%!$# LRTSN L"s 0

L.J 3)@ N 0 log10R N 0 log10.( di"a%a R ,#"= .(,M

L

RTSJ -16)4 N 10 log

10A N 0 log

10.( N 0 log

10

*" N L

di "a%a

LJ-10 N 0)35@ = 0 35)5 N 0)0>5,- 35 = 35 55@)0 2 0)11@,- 55 = 55 40

Prediction Model

Prediction Model


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L"sJ L&s*N #a N #dlog10R N #.log10.(- 4 log10

&di"a%a L&s* J

-1? N log10,1 N *" = *& *r = *& *r

#a J5@ = *& *r5@ N 0)?*& = d 500 " *& *r

5@ N 0)? *& ) R = 55 40/atatan # Ls!dan kameningkatkan pat! loss untuk !" yang le"i! renda!

#d J1? = *& *r1? 2 15 ,*&*r = *& *r

#. J@ N 0)> ,.(45 - 1

@ N 1)5 ,.(45 - 1

= U%!$# #o!a $#$ra% seda%g da%s$&$r&a% de%ga% #erapa!a% po*o%($#$p "odera!

= P$sa! #o!a "e!ropoli!a%

/OSAB1 ;alfis! 'kegami Model

Prediction Model

Prediction Model


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ro J 1"il

J 1/6 #"

rPro

PrP P r

rffr ro o o

n

o=

. . .

P P

r

r n

f

fr ro o oo=

+ . log . log10 10P P

r

r n

f

fr ro o o o=

+ . log . log10 10

Dalam persamaan linear"

Dalam persamaan logaritmi# $d%&"

Pr < Daya terima pada Iarak r dari transmitter

Pro < Daya terima pada Iarak ro< 1 mil dari

transmitter

< Slope 2 kemiringan Pat! Loss

n < Faktor koreksi% digunakan apa"ila ada

per"edaan frekuensi antara kondisi saateksperimen dengan kondisi se"enarnya

o < Faktor koreksi% digunakan apa"ila ada

per"edaan keadaan antara kondisi saat

eksperimen dengan kondisi se"enarnya

(ondisi saat eksperimen dilakukan%

1 Operating Frequency < >** MHJ

A R&S antenna < B*EC m

B MS antenna < B m

E RF x Po$er < 1* $att

? R&S antenna 7ain < = d& over

dipole l2A

= MS antenna 7ain < * d& over

dipole l2A

LeeKs Prediction Model

Prediction Model


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Proand didapat dari data !asil perco"aan

in free space"

Pro < 1*GE?m;atts

g < A

in an open area"

Pro < 1*GE>m;atts

g < EB?

in sub urban area"

Pro < 1*G=1m;atts

g < BCE

in urban area $Philadelphia&"

Pro < 1*Gm;atts

g < B=C

in urban area $To#yo&"

Pro < 1*GCEm;atts

g < B*?

ao< faktor koreksi

o< 1 A B E ?

2

1(m)48.30

(m)riilstationbaseantenatinggi

=

(m)3

(m)riilunitmobileantennatinggi2

=

=

(!atts)10

(!atts)riil"emancar#a$a3

=

4

2#i"oleantenat#%riilstationbaseantenagain4

=

1

2#i"oleantenat%#.riilunitmobileantenagain54



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n diperole! dari perco"aan 2 empiris

#ec'30n#ec'20

Harga n diperole! dari !asil perco"aan yang

dilakukan ole! Okumura dan 9oung

&erdasarkan eksperimen ole! Okumura

n


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3

0 a r a k d a l a m m i l

@ 5 6 > ? 4 1 01

- 1 1 0

- 1 0 0

- 4 0

- ? 0

- > 0

- 6 0

- 5 0

- 1 0

Signalstrengt!ind&m

1

3

@

5

6

>

?

Signalstreng

t!ind&-mikro:olt.


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ro J 1"il

J 1/6 #" r1Pro

Pr

r

area 1area A

r

r1 rr

area 1 area A

2

1= km

o

n

o1o

1ror .

f

f.

r

r.

r

r.

21

= o< 1 A B E ?

o

n

o11

2

o

1ror .

f

f.

r

r.....

r

r.

r

r.

21

= o

n

o11

2

o

1ror .

f

f.

r

r.....

r

r.

r

r.

21

=

persamaan

umum%

Lee(s Pathloss Formula,ntuk &er"agai 0enis (ondisiLingkungan


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Mi(ro(ells

Propaga!io% di..ers sig%i.i(a%!l'2 Milder propaga!io% (*ara(!eris!i(s

2 S"all "$l!ipa!* dela' spread a%d s*allo;

.adi%g i"pl' !*e .easi&ili!' o. *ig*er da!a-ra!e!ra%s"issio%

2 Mos!l' $sed i% (ro;ded $r&a% areas

2 I. !ra%s"i!!er a%!e%%a is lo;er !*a% !*es$rro$%di%g &$ildi%g !*a% !*e sig%alspropaga!e alo%g !*e s!ree!s: S!ree! Mi(ro(ells


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Ma(ro(ells 7ers$s Mi(ro(ells

I!e" Ma(ro(ell Mi(ro(ell

ell Radi$s 1 !o 0#" 0)1 !o 1#"

T< Po;er 1 !o 10A 0)1 !o 1A

adi%g Ra'leig* Ca#ga"i-Ri(e

RMS Dela' Spread 0)1 !o 10s 10 !o 100%s

Ma


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S!ree! Mi(ro(ells

Mos! o. !*e sig%al po;er propaga!es alo%g!*e s!ree!)

T*e sigals "a' rea(* ;i!* LOS pa!*s i.!*e re(ei7er is alo%g !*e sa"e s!ree! ;i!*!*e !ra%s"i!!er

T*e sig%als "a' rea(* 7ia i%dire(!

propaga!io% "e(*a%is"s i. !*e re(ei7er!$r%s !o a%o!*er s!ree!)

S! ! Mi ll


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S!ree! Mi(ro(ells

B+

D

log -distance.log -distance.

received po$er -d&. received po$er -d&.

+

B+

D

&reakpoint

&reakpoin

t

n


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MOBILE

&uilding

'ncident

;ave J i%(ide%! a%gle rela!i7e !o s!ree!&uilding

&uilding

&uilding

;

&

Mo"ile

R

*&*&

*r *"*"

/ell site

7RO,6D

Diagram Parameter


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Model R$gi-R$gi Propogasi

, K*$s$s ree Spa(e Loss

Pe%gar$* pada Ko"$%i#asi Bergera#


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MODEL

1) OKUMUR+S "odel :Q re# : 100 2 3000 M)Q Fara# : 1 2 100 #")Q *T< : 00 ")

Q *R< : 3 ")) S+K+MI a%d KUBOI "odel : Q re# : @50 2 00 M) Q Fara# : 0/5 2 10 #") Q *T< : 0 2 100 ") Q Le&ar ala% : 5 2 50 ") Q Ti%ggi ged$%g : 5 2 ?0 ")

3 +T+S d l


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3) +T+S "odel : Q re# : 150 2 1500 M)

Q Fara# : 1 2 0 #") Q *T< : 30 2 00 ") Q *R< : 1 2 10 ")@) M))IBR+IM a%d F)D)P+RSOCS "odel :

Q re# : 16? 2 400 M Q ara# : 2 10 #") Q *R< 3")

5) A)) LEE "odel :Q re# : 400 M*)

Q


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KL+SIIK+SI D+ER+

1) D+ER+ URB+C , PERKOT++C Q SM+LL or MEDIUM sied IT)Fi#a li%g#$%ga% &er$pa ged$%g &er!i%g#a! de%ga%

!i%ggi ra!a-ra!a #$ra%g dari 5 !i%g#a!/ le&arala% #$ra%g dari 15 ") Q L+RE IT)Fi#a li%g#$%ga% &er$pa ged$%g &er!i%g#a! de%ga%

!i%ggi ra!a-ra!a le&i* dari 5 !i%g#a! le&ar ala%le&i* dari 15 ")

D+ER+ SUBURB+C ,PEDES++C


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) D+ER+ SUBURB+C ,PEDES++C)

De%ga% li%g#$%ga% area r$ral de%ga%

pe"a%!$la% ,s(a!er r$"a* da%pepo*o%a%)

3) D+ER+ RUR+L ,OPEC +RE+De%ga% li%g#$%ga% sa;a*/ pada%g r$"p$!)

5.materi 5 - propagasi

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