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Wireless

Commiunication

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Wireless Communication

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Wireless EvolutionGenerasi Reqirement Keterangan1G Teknologi Analog 1980s

2G Teknologi Digital 1990s

Low data rate !"!#!$9%& G!"

'G #T()s #"T$20001** k+,s mo+ile& '8*k+,s ,edestrian&2"+,s indoors

CD"A 2000 1-.E/$D& ("T!.!A Wi"A3

*G #T()s #"T$Advancedu, to *0 "4 radioc5annels& ver6 5ig5s,ectral e7cienc6 1%+,s.4

:o tec5nolog6

802;1

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Release 99: Completed. First deployable version of U!". #n$ancements to G" dataEDGE; "a>orit6 o? de,lo6ments toda6 are +ased on @elease 99; rovides su,,ort ?orG!".EDGE.G@!.WCD"A radio$access networks;

Release %: Completed. ultimedia messaging support. First steps to&ard using #trans,ort in t5e core network;

Release ': Completed. (")*+. First p$ase of ,nternet *rotocol ultimedia !u+s6stem

#"!; ull a+ilit6 to use #$+ased trans,ort instead o? >ust As6nc5ronous Trans?er "ode AT" in t5ecore network;

Release -: Completed. ("U*+. #n$anced multimedia support t$roug$ ultimediaBroadcast."ulticast !ervices "B"!; er?ormance s,ecications ?or advanced receivers; WirelessLocal Area :etwork WLA: integration o,tion; #"! en5ancements; #nitial /o# ca,a+ilit6;

Release : Completed. *rovides en$anced G" data functionality &it$ #volved EDGE;!,ecies !A& w5ic5 includes 5ig5er order modulation and "#"; er?ormance en5ancements&im,roved s,ectral e7cienc6& increased ca,acit6& and +etter resistance to inter?erence; Continuous

acket Connectivit6 CC ena+les e7cient alwa6s$onF service and en5anced u,link (L /o#ca,acit6& as well as reductions in call set$u, dela6 ?or us5$to$Talk ver Cellular oC; @adioen5ancements to !A include

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Wireless vs Wireline

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Bandwidt5 "anagement

Trendore cell sites.

Femtocells.

Wi1Fi.671pea8 $ours.

!ype of service o";.

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(ser Distri+ution

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Troug5,ut #m,rovement

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!,ectral E7cienc6

Com,arison

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!,ectrum E7cienc6Additive W5ite Gaussian :oise C5annel AWG:

or instance& at ' km.5our

ading at 2 G4

Do,,ler s,read is a+out %;% 4Co5erence time o? t5e c5annel is t5us 1 second sec.%;% or 180

msec;

rames are well wit5in t5e co5erence time o? t5e c5annel&+ecause t5e6 are t6,icall6 20 msec or less; As suc5& t5e c5annela,,ears constantF over a ?rame and t5e !5annon +ounda,,lies;

urt5ermore& signicantl6 more o? t5e tra7c in a cellular s6stemis at slow s,eeds ?or e-am,le& ' km.5r or less rat5er t5an at5ig5er s,eeds; T5e !5annon +ound is conse=uentl6 also relevant?or a realistic de,lo6ment environment;

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(,,er La6er ,timi4ationFast (ybrid +utomatic Repeat Request

Fast "c$eduling

Fast )ormancy"elf 6rgani

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"elamat >ela?ar