seminar final.doc

8/9/2019 seminar final.doc

1/39

A

Seminar Report

On

WIMAX TECHNOLOGY

Presented By

ABHISHE MEHRA

Ro!! No" #$

%nder t&e '(idan)e o*

Pro*" +I,YA R" -OSHI

,epartment O* Comp(ter En'ineerin' . I"T"

B&arati +idyapeet& ,eemed %ni/ersity Co!!e'e O* En'ineerin'

P(ne01$

#2230#224


2/39

BHARATI VIDYAPEETH DEEMED UNIVERSITYCOLLEGE OF ENGINEERING

KATRAJ DHANKAWADI 411043

This is ! "#$i%& h' ABHISHE MEHRA( !% ")'ss B*T#"h* I*T*( R!)) N!*+3( h's

s,""#ss%,))& "!-.)##/ his s#-i'$ !$2 ! h# !.i" WIMA TECHNOLOGY ,/#$ h#

')# 5,i/'"# !% Pro*"+I,YA R" -OSHI( !'$/s h# .'$i') %,)%i))-# !% h# #$-!$2 i h# s,6#" !% Seminar and Te)&ni)a! Comm(ni)ation( i h# '"'/#-i" '$ !%

+0078+009*

Pro*" S%HAS H" PATIL Pro*" +I,YA R" -OSHI

:H*O*D*; :G,i/#;

D'#


3/39

A)5no6!ed'ements

I( ABHISHE MEHRA7 !,)/ )i2# ! '2# his !..!$,i& !

#=.$#ss -& si"#$#s 5$'i,/# ! ')) h# .#!.)# h! h'># "!$i,#/ !'$/s h#

s,""#ss%,) "!-.)#i! !% -& s#-i'$*

I !,)/ )i2# ! #=#/ -& h#'$%#) h'2s ! -& H*O*D Pro*" S%HAS

H"PATIL '/ -& S#-i'$ G,i/# Pro* .VIDYA R. JOSHI %!$ h# i>'),')# s,..!$

'/ 5,i/'"# #=#/#/ ! ,s & h#-( %!$ ,$,$i5 ' "!5#i') "!-.#ii>#

#>i$!-# i h# /#.'$-#( hi"h -!i>'#s ')) h# s,/#s ! .,$s,# hi5h#$ 5!')s*

I !,)/ ')s! )i2# ! #=#/ -& h'2s ! ')) h# #'"hi5 '/ ! #'"hi5

s'%% -#-#$s !% -& D#.'$-#( '/ ! ')) -& "!))#'5,#s h! h#).#/ -# i h# #i$#

s#-i'$ .$#.'$'i!*


4/39

IN,EX

TOPIC PAGENO

1* INTRODUCTION 1

+* WHAT IS WIMA +

3* HOW WIMA WORKS 7

4* WIMA?S TECHNOLOGY FOR LOS AND NLOS ENVIRONMENTS @

7* ORTHOGONAL FREUENCY DIVISION MULTIPLEING 11

9* DEPLOYMENT TOPOLOGIES 13

* WIMA FORUM 14

@* MARKET FOR WIMA 1

* WIMA AND TECHNOLOGY CHALLENGE ++

10* WIMA AND EISTING TECHNOLOGY +7

11* PROGRESS ON WIMA STANDARD +@

1+* INTEL?S ROLE IN WIMA 30

13* WIMA SPECTRUM AND REGULATION ISSUES 3+

14* WHAT LIES AHEAD 33

17* CONCLUSION 3419* REFERENCES 3@


5/39

8" INTRO,%CTION

B$!'/'/ Wi$#)#ss A""#ss :BWA; h's ## s#$>i5 ##$.$is#s '/ !.#$'!$s

%!$ '$s( ! h# 5$#' s'is%'"i! !% is ,s#$s* H!#>#$( h# # IP's#/ s'/'$/

/#>#)!.#/ & h# IEEE @0+*19 is )i2#)& ! '""#)#$'# '/!.i! !% h# #"h!)!5&* I i))

#=.'/ h# s"!.# !% ,s'5# h'2s !< h# .!ssii)i& !% !.#$'i5 i )i"#s#/ '/

,)i"#s#/ %$#,#"& '/s( ,i,# .#$%!$-'"# ,/#$ N!Li#!%Si5h :NLOS;

"!/ii!s( ,')i& !% S#$>i"# :!S; ''$##ss( #=#si! ! !-'/i"i&( '/ -!$#*

I .'$'))#)( h# WiMA %!$,-( '"2#/ & i/,s$& )#'/#$s( i)) #"!,$'5# h#

i/#s.$#'/ '/!.i! !% $!'/'/ i$#)#ss '""#ss & #s')ishi5 ' $'/ %!$ h#

#"h!)!5& '/ .,shi5 i#$!.#$'i)i& ### .$!/,"s*

T&e p(rpose o* t&is report is to &i'&!i'&t and assess t&e /a!(e o* WiMAX as t&e

ri'&t so!(tion to9

1* E=#/ h# ",$$#)& )i-i#/ "!>#$'5# !% .,)i" WLAN :h!s.!s; ! "i&i/# "!>#$'5#

:h! !#s;

+* Th# s'-# #"h!)!5& #i5 ,s')# ' h!-# '/ ! h# -!>#(

3* B)'2# -#$!.!)i' '$#'s %!$ -!i)# /''"#$i" s#$>i"# /#)i>#$&( !%%#$ %i=#/

$!'/'/ '""#ss i ,$' '/ s,,$' '$#'s h#$# "!..#$ ,')i& is .!!$ !$ ,,/)i5 /i%%i",)(

4* B$i/5# h# /i5i') /i>i/# i )!/#si& '$#'s h#$# #"hi"') '/ #"!!-i" %'"!$s

-'2# $!'/'/ /#.)!&-# >#$& "h'))#5i5*


6/39

#"WHAT IS WIMAX:

#"2 Standards asso)iated to WiMAX9

W!$)/i/# I#$!.#$'i)i& %!$ Mi"$!'># A""#ss :WiMA; is h#

"!--! '-# 'ss!"i'#/ ! h# IEEE @0+*19'REV/# s'/'$/s* Th#s# s'/'$/s '$#

iss,#/ & h# IEEE @0+*19 s,5$!,. h' !$i5i'))& "!>#$#/ h# Wi$#)#ss L!"') L!!.

:WLL; #"h!)!5i#s ih $'/i! s.#"$,- %$!- 10 ! 99 GH* R#"#)&( h#s#

s.#"i%i"'i!s

#$# #=#/#/ #)! 10 GH*

1* I J','$& +003( h# IEEE '..$!>#/ @0+*19' 's ' '-#/-# ! IEEE @0+*19 +001(

/#%ii5 :N#'$; Li#O% Si5h "'.'i)i&*

+* I J,)& +004( IEEE @0+*19REV/( ! .,)ish#/ ,/#$ h# '-# IEEE @0+*19+004(

i$!/,"#s s,..!$ %!$ i/!!$ CPE :NLOS; h$!,5h '//ii!') $'/i! "'.'i)ii#s s,"h

's '#' #'- %!$-i5 '/ OFDM s,"h'#)i5*

3* E'$)& +007( ' IEEE @0+*19# >'$i' i)) i$!/,"# s,..!$ %!$ -!i)i&* S## Fi5,$# 1

%!$ h# '..)i"'i!s 'ss!"i'#/ ih #'"h !% h#s# s'/'$/s* Th# WiMA F!$,- i#/s

! /! %!$ @0+*19 h' h# WiFi A))i'"# /i/ %!$ @0+*11<

4* H'$-!i# s'/'$/s '/ "#$i%& i#$!.#$'i)i& ### #,i.-# %$!- /i%%#$#>#/!$s* S'/'$/i#/ i#$!.#$')# s!),i!s i)) $#s,) i -'ss >!),-# '/ $i5 /!

"!ss(

7* P$!-!# '/ #s')ish ' $'/ %!$ h# #"h!)!5&*


7/39

Thi2 '!, h! &!, '""#ss h# I#$# !/'&* Th#$# '$# 'si"'))& h$## /i%%#$#

!.i!s<

1* B$!'/'/ '""#ss I &!,$ h!-#( &!, h'># #ih#$ ' DSL !$ "')# -!/#-* A

h# !%%i"#( &!,$ "!-.'& -'& # ,si5 ' T1 !$ ' T3 )i#*

+* WiFi '""#ss I &!,$ h!-#( &!, -'& h'># s# ,. ' WiFi $!,#$ h' )#s &!,s,$% h# W# hi)# &!, )!,5# ih &!,$ )'.!.* O h# $!'/( &!, "' %i/ WiFi

h! s.!s i $#s',$'s( h!#)s( "!%%## sh!.s '/ )i$'$i#s*

3* Di'),. '""#ss I% &!, '$# si)) ,si5 /i'),.( "h'"#s '$# h' #ih#$ $!'/'/

'""#ss is ! '>'i)')#( !$ &!, hi2 h' $!'/'/ '""#ss is !! #=.#si>#*

Th# -'i .$!)#-s ih $!'/'/ '""#ss '$# h' i is .$#& #=.#si># '/ i /!#s

$#'"h ')) '$#'s* Th# -'i .$!)#- ih WiFi '""#ss is h' h! s.!s '$# >#$& s-'))( s!

"!>#$'5# is s.'$s#*

WiMA h's h# .!#i') ! /! ! $!'/'/ I#$# '""#ss h' "#))

.h!#sh'># /!# ! .h!# '""#ss* I h# s'-# '& h' -'& .#!.)# h'># 5i># ,. h#i$

)'/ )i#s i %'>!$ !% "#)) .h!#s( WiMA "!,)/ $#.)'"# "')# '/ DSL

$>i"#s(.$!>i/i5 ,i>#$s') I#$# '""#ss 6,s '!, '&h#$# &!, 5!* WiMA i)) ')s!

# 's .'i)#ss 's WiFi ,$i5 &!,$ "!-.,#$ ! i)) ',!-'i"'))& "!#" &!, ! h#

")!s#s '> This #"h!)!5& .$!>i/#:

• Th# hi5h s.##/ !% $!'/'/ s#$>i"#

• Wi$#)#ss $'h#$ h' i$#/ '""#ss( s! i !,)/ # ' )! )#ss #=.#si># h' "')# !$

DSL '/ -,"h #'si#$ ! #=#/ ! s,,$' '/ $,$') '$#'s

• B$!'/ "!>#$'5# )i2# h# "#)) .h!# #!$2 is#'/ !% s-')) WiFi h!s.!s *

#"8 WiMAX7 t&e rea!ity ;eyond t&e &ype

As -#i!#/ '!>#( WiMA "' !%%#$ >#$& hi5h /'' $'#s '/ #=#/#/ "!>#$'5#*

H!#>#$(

1* 7 Mis "'.'"i& %!$ h# 's# s'i! is '"hi#>')# ih ' +0 MH "h'#) i

#s.$!.'5'i! "!/ii!s* B, $#5,)'!$s i)) !%# '))! !)& s-'))#$ "h'#)s :10

-h!$ )#ss; $#/,"i5 h# -'=i-,- '/i/h*

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8/39

+* E># h!,5h 70 2- is '"hi#>')# ,/#$ !.i-') "!/ii!s '/ ih ' $#/,"#/ /''

$'# :' %# Mis;( h# &.i"') "!>#$'5# i)) # '$!,/ 7 2- ih i/!!$ CPE :NLOS;

'/ '$!,/ 17 2- ih ' CPE "!#"#/ ! ' #=#$') '#'

$" HOW WIMAX WORS:


9/39

I .$'"i"') #$-s( WiMA !,)/ !.#$'# si-i)'$ !

WiFi , ' hi5h#$ s.##/s( !>#$ 5$#'#$ /is'"#s '/ %!$ ' 5$#'#$ ,-#$ !% ,s#$s*

WiMA "!,)/ .!#i'))& #$'s# h# s,,$' '/ $,$') )'"2!, '$#'s h' ",$$#)& h'>#

! $!'/'/ I#$# '""#ss #"',s# .h!# '/ "')# "!-.'i#s h'># ! $, h#

#"#ss'$& i$#s ! h!s# $#-!# )!"'i!s*

A WiMA s&s#- "!siss !% ! .'$s<

• A WiMAX to6er( si-i)'$ i "!"#. ! ' "#)).h!# !#$ A si5)# WiMA

!#$ "' .$!>i/# "!>#$'5# ! ' >#$& )'$5# '$#' 's i5 's 3(000 s,'$# -i)#s

:@(000 s,'$# 2-;*

• A WiMAX re)ei/er Th# $#"#i>#$ '/ '#' "!,)/ # ' s-')) != !$ PCMCIA

"'$/( !$ h#& "!,)/ # ,i) i! ' )'.!. h# '& WiFi '""#ss is !/'&*

A WiMA !#$ s'i! "' "!#" /i$#")& ! h# I#$# ,si5 ' hi5h'/i/h(

i$#/ "!#"i! :%!$ #='-.)#( ' T3 )i#;* I "' ')s! "!#" ! '!h#$ WiMA !#$

,si5 ' )i#!%si5h( -i"$!'># )i2* This "!#"i! ! ' s#"!/ !#$ :!%# $#%#$$#/

! 's ' ;a)5&a(!;( ')!5 ih h# 'i)i& !% ' si5)# !#$ ! "!>#$ ,. ! 3(000 s,'$#

-i)#s( is h' '))!s WiMA ! .$!>i/# "!>#$'5# ! $#-!# $,$') '$#'s*

Photo courtesy Intel

WiMAX transmitting tower

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10/39

Wh' his .!is !, is h' WiMA '",'))& "' .$!>i/# ! %!$-s !% i$#)#ss s#$>i"#<

• Th#$# is h# non0!ine0o*0si'&t( WiFi s!$ !% s#$>i"#( h#$# ' s-')) '#' !

&!,$ "!-.,#$ "!#"s ! h# !#$* I his -!/#( WiMA ,s#s ' !o6er

*re#$'5#( hi"h is si-i)'$ i $'5# ! ' "#)).h!# !#;* Th$!,5h h#


11/39

s$!5#$ )i#!%si5h '#'s( h# WiMA $'s-ii5 s'i! !,)/ s#/ /'' !

WiMA#')#/ "!-.,#$s !$ $!,#$s s# ,. ihi h# $'s-i#$s 30-i)# $'/i,s

:3(900 s,'$# -i)#s !$ (300 s,'$# 2- !% "!>#$'5#;* This is h' '))!s WiMA !

'"hi#># is -'=i-,- $'5#*

1" WIMAX=S TECHNOLOGY >OR LOS AN, NLOS

EN+IRONMENTS

http://computer.howstuffworks.com/router.htmhttp://computer.howstuffworks.com/router.htm


12/39

1"2"A;stra)t

Whi)# -'& #"h!)!5i#s ",$$#)& '>'i)')# %!$ %i=#/ $!'/'/ i$#)#ss "' !)&

.$!>i/# )i# !% si5h :LOS; "!>#$'5#( h# #"h!)!5& #hi/ WiMA h's ## !.i-i#/

! .$!>i/# #="#))# ! )i# !% si5h :NLOS; "!>#$'5#* WiMA?s '/>'"#/ #"h!)!5&

.$!>i/#s h# #s !% !h !$)/s 8 )'$5# "!>#$'5# /is'"#s !% ,. ! 70 2i)!-##$s ,/#$

LOS "!/ii!s '/ &.i"') "#)) $'/ii !% ,. ! 7 -i)#s@ 2- ,/#$ NLOS "!/ii!s*

1"8"NLOS /ers(s LOS Propa'ation

Th# $'/i! "h'#) !% ' i$#)#ss "!--,i"'i! s&s#- is !%# /#s"$i#/ 's #i5 #ih#$

LOS !$ NLOS* I ' LOS )i2( ' si5') $'>#)s !>#$ ' /i$#" '/ ,!s$,"#/ .'h %$!-

h# $'s-i#$ ! h# $#"#i>#$* A LOS )i2 $#,i$#s h' -!s !% h# %i$s F$#s#) !# is

%$## !% '& !s$,"i!( s## Fi5,$# 1 i% his "$i#$i' is ! -# h# h#$# is ' si5i%i"'

$#/,"i! i si5') s$#5h( s## R#% 1*

Th# F$#s#) ")#'$'"# $#,i$#/ /#.#/s ! h# !.#$'i5 %$#,#"& '/ h# /is'"#

### h# $'s-i#$ '/ $#"#i>#$ )!"'i!s*


13/39

I ' NLOS )i2( ' si5') $#'"h#s h# $#"#i>#$ h$!,5h $#%)#"i!s( s"'#$i5( '/

/i%%$'"i!s* Th# si5')s '$$i>i5 ' h# $#"#i>#$ "!siss !% "!-.!#s %$!- h# /i$#"

.'h( -,)i.)# $#%)#"#/ .'hs( s"'#$#/ ##$5&( '/ /i%%$'"#/ .$!.'5'i! .'hs* Th#s#

si5')s h'># /i%%#$# /#)'& s.$#'/s( '#,'i!( .!)'$i'i!s( '/ s'i)i& $#)'i># !

h# /i$#" .'h*

Th# -,)i .'h .h#!-#' "' ')s! "',s# h# .!)'$i'i! !% h# si5') ! # "h'5#/*

Th,s ,si5 .!)'$i'i! 's ' -#'s !% %$#,#"& $#,s#( 's is !$-'))& /!# i LOS/#.)!&-#s "' # .$!)#-'i" i NLOS '..)i"'i!s*

H! ' $'/i! s&s#- ,s#s h#s# -,)i .'h si5')s ! ' '/>''5# is h# 2#& ! .$!>i/i5

s#$>i"# i NLOS "!/ii!s* A .$!/," h' -#$#)& i"$#'s#s .!#$ ! .##$'#

!s$,"i!s :s!-#i-#s "'))#/ #'$ )i# !% si5h; is ! NLOS #"h!)!5& #"',s# his

'..$!'"h si)) $#)i#s ! ' s$!5 /i$#" .'h ih!, ,si5 ##$5& .$#s# i h# i/i$#"

si5')s* B!h LOS '/ NLOS "!>#$'5# "!/ii!s '$# 5!>#$#/ & h# .$!.'5'i!

"h'$'"#$isi"s !% h#i$ #>i$!-#( .'h )!ss( '/ $'/i! )i2 ,/5#*

Th#$# '$# s#>#$') '/>''5#s h' -'2# NLOS /#.)!&-#s /#si$')#* F!$ is'"#( s$i"

.)'i5 $#,i$#-#s '/ '#' h#i5h $#s$i"i!s !%# /! ! '))! h# '#' !

# .!sii!#/ %!$ LOS* F!$ )'$5#s"')# "!i5,!,s "#)),)'$ /#.)!&-#s( h#$# %$#,#"&

$#,s# is "$ii"')( )!#$i5 h# '#' is '/>''5#!,s ! $#/,"# h# "! "h'#)

i#$%#$#"# ### '/6'"# "#)) si#s* This !%# %!$"#s h# 's# s'i!s ! !.#$'# i


14/39

NLOS "!/ii!s* LOS s&s#-s "'! $#/,"# '#' h#i5hs #"',s# /!i5 s! !,)/

i-.'" h# $#,i$#/ /i$#" >i# .'h %$!- h# CPE ! h# B's# S'i!*

NLOS #"h!)!5& ')s! $#/,"#s is'))'i! #=.#s#s & -'2i5 ,/#$h##'>#s CPE

is'))'i! ' $#')i& '/ #'si5 h# /i%%i",)& !% )!"'i5 '/#,'# CPE -!,i5

)!"'i!s* Th# #"h!)!5& ')s! $#/,"#s h# ##/ %!$ .$# is'))'i! si# s,$>#&s '/

i-.$!>#s h# '"",$'"& !% NLOS .)'i5 !!)s*

1"#" NLOS Te)&no!o'y So!(tions

WiMA #"h!)!5&( s!)>#s !$ -ii5'#s h# .$!)#-s $#s,)i5 %$!- NLOS "!/ii!s

& ,si5<

OFDM #"h!)!5&*


15/39

3" Ort&o'ona! >re'i)')#* OFDM #%%#"i>#)&

s,###s

-,)i.)# -!/,)'#/ "'$$i#$s i5h)& !5#h#$( $#/,"i5 h# $#,i$#/ '/i/h , 2##.i5

h# -!/,)'#/ si5')s !$h!5!') s! h#& /! ! i#$%#$# ih #'"h !h#$* T!/'&( h#

#"h!)!5& is ,s#/ i s,"h s&s#-s 's 's&--#$i" /i5i') s,s"$i#$ )i# :ADSL; 's #))

's i$#)#ss s&s#-s s,"h 's IEEE @0+*11'5 :WiFi; '/ IEEE @0+*19 :WiMA;* I is

')s! ,s#/ %!$ i$#)#ss /i5i') ',/i! '/ >i/#! $!'/"'si5* I is 's#/ ! %$#,#"&

/i>isi! -,)i.)#=i5 :FDM;( hi"h is ' #"h!)!5& h' ,s#s -,)i.)# %$#,#"i#s !

si-,)'#!,s)& $'s-i -,)i.)# si5')s i .'$'))#)* E'"h si5') h's is ! %$#,#"&

$'5# :s,"'$$i#$; hi"h is h# -!/,)'#/ & /''* E'"h s,"'$$i#$ is s#.'$'#/ & '

5,'$/ '/ ! #s,$# h' h#& /! ! !>#$)'.* Th#s# s,"'$$i#$s '$# h# /#-!/,)'#/ '

h# $#"#i>#$ & ,si5 %i)#$s ! s#.'$'# h# '/s*

OFDM is si-i)'$ ! FDM , -,"h -!$# s.#"$'))& #%%i"i# & s.'"i5 h# s,"h'#)s

-,"h ")!s#$ !5#h#$ :,i) h#& '$# '",'))& !>#$)'..i5;* This is /!# & %i/i5

%$#,#"i#s h' '$# !$h!5!')( hi"h -#'s h' h#& '$# .#$.#/i",)'$ i '-'h#-'i"') s#s#( '))!i5 h# s.#"$,- !% #'"h s,"h'#) ! !>#$)'. '!h#$

ih!, i#$%#$i5 ih i*


16/39

I Fi5,$# ( h# #%%#" !% his is s## 's h# $#,i$#/ '/i/h is 5$#')& $#/,"#/ &

$#-!>i5 5,'$/ '/s '/ '))!i5 si5')s ! !>#$)'.* I !$/#$ ! /#-!/,)'# h# si5')(

' /is"$## F!,$i#$ $'s%!$- :DFT; is ##/#/* F's F!,$i#$ $'s%!$- :FFT; "hi.s '$#

"!--#$"i'))& '>'i)')#( -'2i5 his ' $#)'i>#)& #'s& !.#$'i! .h's# shi% 2#&i5 :PSK;

!$ ,'/$',$# '-.)i,/# -!/,)'i! :AM; is &.i"'))& #-.)!/ ! i"$#'s# h# /''

h$!,5h.,* S! i his "'s#( ' /'' s$#'- !,)/ # s.)i i! n :1+; .'$'))#) /''

s$#'-s( #'"h ' 1n :11+; !% h# !$i5i') $'#*


17/39

4" ,EPLOYMENT TOPOLOGIES

I #-#$5i5 "!,$i#s( h# -'i %!",s !% $!'/'/ /#.)!&-# is ! ,$'

'/ s,,$' '$#'s( '/ i)) $#-'i s! i h# #'$ %,,$#* Th# )! POTS .##$'i! '/h# )! ,')i& !% h# "!..#$ .'i$ .$#># -'ss s"')# DSL /#.)!&-# '/ %!s#$ h# ##/

%!$ ')#$'# $!'/'/ #"h!)!5i#s* I his "!#=( WiMA is .!sii!#/ 's '

#="#))# !.i!* M!$#!>#$( h# .!ssii)i& !% !%%#$i5 $!'/'/ s#$>i"#s i "!-i'i!

ih >!i"# s#$>i"#s i)) 5$'/,'))& )#'/ ! '$$!'/ WLL s,si,i!* P'$'-##$s s,"h

's '>'i)'i)i& !% h# "!..#$( /is'"# ! h# $#-!# ,i"#$') !%%i"#( '"2h',)i5 "!ss(

'/ #)#/#si& i)) /$i># h# "h!i"# %!$ !# !$ !h#$ !% h#s# s!),i!s* WiM'= is !%

i#$#s %!$ )'$5# ##$.$is#s ih s#>#$') )!"'i!s i h# s'-# -#$!.!)i' '$#'* WiM'=

i)) .#$-i O.#$'!$s &.'ss ,/#$ )i"#s# "!/ii!s< ,i)/i5 ' -#$!.!)i' .$i>'#

#!$2 !% IP )i#s ' ' >#$& )! "!s :! "i>i) !$2s;* Th# "!-.'$is! ! )#'s#/ )i#s

$#') %## is i %'>!$ !% Wi-'= #># %!$ ! si#s !)&*

S#>#$') !.!)!5& '/ '"2h',)i5 !.i!s '$# ! # s,..!$#/ ! h# WiMA 's#

s'i!s< i$#)i# '"2h',)i5 :&.i"'))& !>#$ Eh#$#;( -i"$!'># P!i!P!i

"!#"i!( 's #)) 's WiMA '"2h',)* Wih h# )'#$ !.i!( h# 's# s'i! h's h#

"'.'i)i& ! '"2h',) is#)%* This "' # '"hi#>#/ & $#s#$>i5 .'$ !% h# '/i/h

!$-'))& ,s#/ %!$ h# #/,s#$ $'%%i" '/ ,si5 i %!$ '"2h',)i5 .,$.!s#s*


18/39

@" WIMAX >OR%M

Th# WiMA F!$,- is ' !.$!%i "!$.!$'i! %!$-#/ ! h#). .$!-!# '/

"#$i%& h# "!-.'ii)i& '/ i#$!.#$'i)i& !% BWA :B$!'/'/ Wi$#)#ss A""#ss;

#,i.-#* Th# si5)# 5)!') i#$!.#$')# s'/'$/ %!$ $!'/'/ i$#)#ss '""#ss is

's#/ ! WiLANs WOFDM #"h!)!5& '/ h# IEEE @0+*19 ETSI Hi.#$MAN

s'/'$/s* Th# F!$,-s #%%!$s '$# i#/#/ ! h#). '""#)#$'# h# i$!/,"i! !%

s'/'$/s's#/ $!'/'/ i$#)#ss #,i.-# i! h# -'$2#.)'"#( s.##/i5 ,. )'s

-i)# $!'/'/ /#.)!&-# !$)/i/#*

WiMA F!$,- C#$i%i#/ #,i.-# is #=.#"#/ ! .$!>i/# ,. ! 702i)!-##$s !% $'5#

'/ '))! ,s#$s ! $#"#i># $!'/'/ "!#"i>i& ih!, $#,i$i5 ' /i$#" )i# !% si5h

ih h# 's# s'i!* Th# #,i.-# is ')s! #=.#"#/ ! .$!>i/# sh'$#/ /'' $'#s ,. !

0 M.s( hi"h is #!,5h '/i/h ! si-,)'#!,s)& s,..!$ -!$# h' 90 ,si#ss#s

ih T1&.# "!#"i>i& '/ h,/$#/s !% h!-#s ih DSL&.# "!#"i>i& ih '

si5)# 's# s'i!*

WiMA B##%is<

1*N#!$2 !.#$'!$s #,i.-# i#$!.#$'i)i& '"$!ss >#/!$s Q )!#$ "!s )!#$

$is2 %i)) $!'/'/ '""#ss 5'.s %!$ $#si/#i') '/ ,si#ss

+*E/,s#$s %'s#$ '/ "h#'.#$ '""#ss h' is -!$# i/#)& '>'i)')# -!$# "h!i"# %!$

$!'/'/ '""#ss

3*C!-.!# -'2#$s "$#'#s >!),-# !..!$,i& %!$ si)i"! s,..)i#$s %##$

.$!/," >'$i'i!s '/ hi5h#$ >!),-#s

4*E,i.-# -'2#$s "' i!>'# -!$# $'.i/)&

WiLAN '/ WiMAAs ' %!,/i5 -#-#$ !% h# F!$,-( WiLAN h's .)'/ ' "$ii"')

$!)# i h# /#>#)!.-# !% h# s'/'$/ & )#'/i5 h# #"hi"') !$2i5 5$!,. !%

WiMA F!$,- '/ IEEE @0+*19 T's2 G$!,. /* WiLAN is ')s! ' !'$/ -#-#$ !%

WiMA F!$,-*

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19/39

WiLAN h's '!,"#/ is .)' ! .$!/,"# ' WiMA F!$,- C#$i%i#/ s&s#- i

"!6,"i! ih F,6is, Mi"$!#)#"$!i"s A-#$i"'* A>'i)'i)i& !% #5i##$i5 s'-.)#s

!% h# WiLANF,6is, S&s#-!Chi. :S!C; '$# .)'#/ %!$ h# %')) !% +004( '/ h#

"!-.)## s&s#- is #=.#"#/ ! # '>'i)')# %!$ WiMA F!$,- "!%!$-'"# '/

i#$!.#$'i)i& #si5 & h# #/ !% +007*

F,6is, '/ WiLAN WiMA S&s#-!Chi. :S!C;

F,6is, '/ WiLAN h'># ## !$2i5 ")!s#)& ! WiMA #"h!)!5& si"# )'# +00+*

WiLAN h's "!-i#/ is s&s#- #=.#$is# '/ O$h!5!') F$#,#"& Di>isi!

M,)i.)#=i5 :OFDM; #"h!)!5& ih FMA?s "hi. /#si5 "'.'i)ii#s i ' /#>#)!.-#

.$!5$'- h' "$#'#/ ' # S!C %$!- F,6is,* Th# hi5h)& i#5$'#/( hi5h.#$%!$-'"#

s!),i! i"!$.!$'#s #-#//#/ .$!"#ss!$s '/ -i=#/ si5') #"h!)!5& i ' /#>i"# h'

i)) #')# s&s#-s /#>#)!.#$s )i2# WiLAN ! .$!>i/# "!s#%%#"i># WiMA F!$,-

C#$i%i#/ #,i.-#*

Li$' M

WiLAN?s Li$' M( h# !$)/?s %i$s %!,$h5##$'i! OFDM $!'/'/ i$#)#ss

.$!/,"( 5i>#s WiMA .#$%!$-'"# !/'&( '/ 5,'$'##/ -i5$'i! ! WiMA

"#$i%i#/ s&s#-s h# h#& #"!-# '>'i)')#* I '))!s "'$$i#$s ! ,i)/ ' %!,/'i! %!$

WiMA !( '/ '"hi#># $'.i/ ROI & /#)i>#$i5 '/>'"#/ s#$>i"#s )i2# V!IP( /'' '/

>i/#! !>#$ #=.'/#/ i$#)#ss #!$2s i--#/i'#)&*

C!i,i& P$!5$'-< B##%i %$!- WiMA P#$%!$-'"# T!/'&

Th# "!$# !% h# C!i,i& P$!5$'- is WiLAN?s "!--i-# h' '& ",$$# LIBRA

C,s!-#$ P$#-is# E,i.-# :CPE; i)) !.#$'# si/# & si/#( i h# s'-# #!$2( h#

s'-# "#)) '/ #># h# s'-# s#"!$ ih %,,$# WiMA "!-.)i' CPE?s* Th# C!i,i&

P$!5$'- i)) -ii-i# #!$2 '/ $#>#,# /is$,.i! '/ .$!#" ",s!-#$s?

i>#s-# i ",$$# #"h!)!5& h# #!$2s '$# $'sii!#/ ! WiMA "!-.)i'

#,i.-#* Y!, "' "!%i/#)& i>#s i LIBRA %!$ &!,$ #!$2 !/'& '/ -i5$'# !

WiMA i h# %,,$#*

http://www.wi-lan.com/news/press/20050421.htmhttp://www.wi-lan.com/products/libramx.htmhttp://www.wi-lan.com/news/press/20050421.htmhttp://www.wi-lan.com/products/libramx.htm


20/39

WiMA F!$,- @0+*19 His!$&

I +001 IEEE $#)#'s#/ h# IEEE @0+*19 s'/'$/( hi"h 's ! # h# %i$s !% s#>#$')

$!'/'/ Wi$#)#ssMAN s'/'$/s* Si"# h# h# IEEE h's "!i,#/ ! '// ! h'

's# s'/'$/ h$!,5h ' s# !% '-#/-#s( #'"h ih ' /i%%#$# %!",s*

I #'$)& +00+( WiLAN 6!i#/ N!2i'( Es#-)#( H'$$is '/ C$!ssS.'( '/ #"'-# '

%!,/i5 -#-#$ !% h# +11GH 5$!,. ihi WiMA F!$,-* As ' $#s,)( WiMA

F!$,-s "h'$#$ 's -!/i%i#/ ! .$!-!# ' si5)# 5)!') i#$!.#$')# s'/'$/ %!$

$!'/'/ i$#)#ss '""#ss 's#/ ! WiLANs WOFDM #"h!)!5& '/ h# IEEE

@0+*19 ETSI Hi.#$MAN s'/'$/s i h# +11Gh '/s*

I S#.#-#$ +003 /,$i5 h# +h s#ssi! !% h# IEEE @0+*19 W!$2i5 G$!,.( ' #

.$!6#"( @0+*19REV/( 's '..$!>#/ h' !,)/ $#s,) i s!-# "h'5#s %!$ IEEE

WiMA %!))!#$s '/ isi/#$s ')i2#* P$i!$ ! his( h# "!-.)## IEEE @0+*19 s'/'$/

's "!-.$is#/ !% h$## /!",-#s ihi h# IEEE @0+*19 5$!,. !% s'/'$/s IEEE S/

@0+*19+001( IEEE S/ @0+*19"+00+( '/ IEEE S/ @0+*19'+003* Th# s'/'$/

"!--!)& 2! 's 19' is i %'" ' '-#/-# ! h# IEEE @0+*19+001 '/ is !

' s'/ ')!# /!",-#* IEEE @0+*19REV/ :' "!-i'i! !% h# .$#>i!,s h$##

/!",-#s; 's $'i%i#/ '/ 's .,)ish#/ i S#.#-#$ +004*

IEEE @0+*19# is ' '-#/-# ! IEEE @0+*19+004( hi"h i)) '//$#ss '//i5

-!i)i& ! h# @0+*19 s'/'$/*

Th# WiMA F!$,- h's !>#$ +00 -#-#$ "!-.'i#s '/ is .!is#/ ! #5i "#$i%i"'i!

!% WiMA .$!/,"s i +007*

http://ieee802.org/16/index.htmlhttp://www.wimaxforum.org/http://ieee802.org/16/index.htmlhttp://ieee802.org/16/index.htmlhttp://grouper.ieee.org/groups/802/16/tgd/index.htmlhttp://www.wimaxforum.org/http://ieee802.org/16/index.htmlhttp://www.wimaxforum.org/http://ieee802.org/16/index.htmlhttp://ieee802.org/16/index.htmlhttp://grouper.ieee.org/groups/802/16/tgd/index.htmlhttp://www.wimaxforum.org/


21/39

" MARET >OR WIMAX

WiMA i)) !!s !/'&s hi5h)& %$'5-##/ BWA -'$2# h'2s !

s'/'$/i'i! '/ i#$!.#$'i)i&( s'#!%h#'$ $'/i! #%%i"i#"& ih NLOS

"'.'i)i&( '/ s$!5 s,..!$ %$!- h# $'/i! #,i.-# -',%'",$#$s '/ "hi.s#

i/,s$i#s* WiMA i)) ')s! '$5# h# /''"#$i" -!i)i& -'$2# ih h# i$!/,"i!

!% )!#$ .!#$"!s,-.i! "hi.s#s* Th# s$!5 s,..!$ %$!- s!-# !% h# -!s

i-.!$' "hi.s#s -',%'",$#$s s,"h 's I#) is ' 2#& #')#$ %!$ h# s,""#ss !%

WiMA( si"# i i)) )#'/ ! i/# '>'i)'i)i& !% '%%!$/')# WiMA#')#/ #$-i')s

:#*5*( )'.!.s( PDAs( #"*;*

"2"WiMAX prod()t a/ai!a;i!ity

M'ss /#.)!&-# !% WiMA .$!/,"s is .)'#/ i ! -'i s#.s<

1* -i/+007( '>'i)'i)i& !% h# @0+*19REV/ "hi.s#( '))!i5 h# /#>#)!.-# !%

"!s!.i-i#/ CPE !.#$'i5 i/!!$s :NLOS;(

+* i +009( '>'i)'i)i& !% @0+*19# "hi.s#s #-#//#/ i )'.!.s '/ )'#$ ! i !h#$

-!i)# /#>i"#s( #')i5 P!$')# I#$#*

W# #)i#># h' ",$$# .$# WiMA .$!/,"s '/ iii') @0+*19' WiMA .$!/,"s


22/39

'>'i)')# i #'$)& +007( !.#$'i5 si-i)'$)& ! ",$$# .$!.$i#'$& #,i.-# :LOS( !

"!s!.i-i#/ CPE; '/ ' si-i)'$ "!s( i)) ! # i/#)& /#.)!/( #"',s# h#

!.#$'!$ ##/s ! 5! '/ is')) h# '#' ' h# ",s!-#$ .$#-is#( hi"h is

,#"!!-i"') %!$ $#si/#i') ",s!-#$ 's .$!>#/ i h# #'$)& /'&s !% ADSL is'))'i!*

This s'i/( @0+*19' i)) "#$'i)& # ,s#/ %!$ ' )#'s ! '$s ! h# -'$2# i/! !%

'"2h',)i5 !% !.#$'!$s si#s< i$#)#ss $'s-issi! !% WiFi h!s.! $'%%i" ! h# #'$#s

ISP .!i !% .$#s#"#( !$ /'' )#'s#/ )i#s "!"#$'i!( !$ 3G # s-')) si#

'"2h',)i5

"8" WiMAX7 a )omp!ement to *i?ed and

mo;i!e a))ess

WiMA i#5$'#s .#$%#")& i! #=isi5 %i=#/ '/ -!i)# #!$2s( "!-.)#-#i5

h#- h# ##/#/* This s#"i! 5i>#s ' -!$# /#'i)#/ '')&sis !% WiMA i#5$'i!

i! %i=#/ '/ h# -!i)# -'$2#s*

"#" WiMAX *or *i?ed 6ire!ess a))ess

N'i!i/# $!'/'/ '""#ss h's #"!-# ' .$i!$i& i -'& "!,$i#s* I -!s/#>#)!.#/

"!,$i#s( h# '>#$'5# $!'/'/ "!>#$'5# i)) $#'"h 0 i h# "!-i5 '$s* Si))( i

s!-# $,$') '$#'s !% s,"h "!,$i#s( $!'/'/ "!>#$'5# i)) ! #="##/ 70* Th# s#$>i"#

5'. "' # "'#5!$i#/ & ! "h'$'"#$isi"s< h# &.# !% '$#' :$,$') !$ ,$'; '/ h#

)#>#) !% 'i!') /#>#)!.-# :s## T')# 1;*I /#>#)!.#/ "!,$i#s( DSL s#$>i"#

/#.)!&-# h's ## -'ssi># i ,$' '/ s,,$' /#.)!&-#s( h#$#'s "!>#$'5# !%

$#-!# '$#'s s-'))#$ !s '/ $,$') '$#'s is )'55i5 #hi/* H,$/)#s ! !>#$"!-# '$#

h# .!!$ )i# ,')i& !% h# is'))#/ "!..#$ 's#( h# )'$5# /is'"#s ! h# "#$') !%%i"#s

!$ "'i#s( !$ h# )! .!.,)'i! /#si&* I his "!#=( WiMA( ih is !S s,..!$(

)!5#$ $#'"h( '/ /'' $'#s si-i)'$ ! DSL( is ',$'))& .!sii!#/ 's ' >i')# %i$s -i)#

!.i! ! !%%#$ $!'/'/ '""#ss ! $#si/#i') ,s#$s*


23/39

"$ WiMAX *or Porta;!e Internet

"$"2 WiMAX7 t&e nat(ra! )omp!ement to mo;i!e and Wi0>i net6or5s

M!i)# #!$2s !%%#$ %,)) -!i)i&( 'i!i/# "!>#$'5# >!i"# s,..!$ '/ -!/#$'#

/'' $'#s* WiMA "' h# # .!sii!#/ 's ' "!-.)#-#'$& s!),i! & !%%#$i5

hi5h#$ '/i/h h# $#,i$#/( i .'$i",)'$ i /#s# ,$' '$#'s* P,)i" WLAN( hi)#

!%%#$i5 ")#'$ ##%is( is )i-i#/ i "!>#$'5# '/ -!i)i& "'.'i)ii#s* WiMA &

.'ss#s h#s# )i-i'i!s '/ !%%#$s $!'/'/ "!#"i>i& i )'$5#$ '$#'s :h!!#s;* Wi

Fi '/ WiMA s!),i!s '$# ')s! "!-.)#-#'$&( ih WiFi #i5 -!$# '/'.#/ %!$

sh!$$'5#( i/!!$ "!#"i!s :i .'$i",)'$ i h# ##$.$is# '/ ' h!-#; '/ WiMA

%!$ )!5 $'5# !,/!!$ "!#"i!s*


24/39

"$"8">rom nomadi)ity to Porta;!e Internet

Whi)# !-'/i"i& !%%#$s "!#"i>i& ihi h# "!>#$'5# '$#' !% ' si5)# 's# s'i!(

P!$')# I#$# i-.)i#s s#ssi! "!i,i& h$!,5h!, h# #!$2* I '//ii! ' #

5##$'i! !% #!$2s ih -,)i'""#ss :3G( WiFi( WiMA( DSL( FTTU( #"*; #')#

#/,s#$s ! #6!& ' A)'&s B#s C!#"#/ #=.#$i#"# h# '""#ssi5 h#i$

'..)i"'i!s >i' h# #s '>'i)')# #!$2 ' h!-#( ! h# .',s#( !$ ! h# -!>#* S##

'!>#* WiMA #"!-#s ' '//ii!') $'/i! '""#ss s!),i! i h# 5)!') #!$2

'$"hi#",$#*

"1" T&e WiMAX CPE

I -!s "'s#( ' si-.)# .),5 '/ .)'& #$-i')( si-i)'$ ! ' DSL -!/#-( .$!>i/#s

"!#"i>i&* S## Fi5,$#* F!$ ",s!-#$s )!"'#/ s#>#$') 2i)!-##$s %$!- h# WiMA

's# s'i!( ' s#)%is')) !,/!!$ '#' -'& # $#,i$#/ ! i-.$!># $'s-issi!

,')i&* T! s#$># is!)'#/ ",s!-#$s( ' /i$#"i># '#' .!ii5 ! h# WiMA

's# s'i! -'& # $#,i$#/* F!$ ",s!-#$s $#,#si5 >!i"# i '//ii! !

$!'/'/ s#$>i"#s( s.#"i%i" CPE i)) '))! h# "!#"i! !% s'/'$/ !$ V!IP .h!#s*

U)i-'#)&( WiMA "hi.s# i)) # #-#//#/ i /''"#$i" /#>i"#s*

"3 "Operators ;(siness )ase


25/39

WiMA is !% i#$#s %!$ i",-#( ')#$'#( '/ -!i)# !.#$'!$s* S!-# ,si#ss

"'s#s '$# .!ssi)#*

1* Th# i",-# !.#$'!$s "' ,s# h# i$#)#ss #"h!)!5& 's ' "!-.)#-# ! DSL(

'))!i5 h#- ! !%%#$ DSL)i2# s#$>i"#s i $#-!#( )!/#si& '$#'s h' "'! #

s#$>#/ ih DSL*

+* F!$ ')#$'# !.#$'!$s( h# i$#)#ss #"h!)!5& is h# s!),i! %!$ ' "!-.#ii># hi5h

s.##/ I#$# '/ >!i"# !%%#$i5 &.'ssi5 h# )'/)i# %'"i)ii#s( ih '..)i"'i)i& i

,$' !$ s,,$' '$#'s*

3* Th# )'$5#$ !..!$,i& i)) "!-# ih h# P!$')# I#$# ,s'5#( "!-.)#-#i5

%i=#/

'/ -!i)# s!),i! i ,$' '/ s,,$' '$#'s* Th#$#%!$# i i)) #h'"# h# ,si#ss

"'s# & 5i>i5 '""#ss ! ' )'$5# .!#i') !% #/ ,s#$s*

"4"WiMAX7 t&e o;/io(s )&oi)e *or

Operators

B& i#5$'i5 WiMA i! h#i$ #!$2s( -!i)# !.#$'!$s "' !!s h#i$ s#$>i"# ih

hi5h '/i/h( h# #"#ss'$&( h# s'-# '..)i"'i!s :-#ss'5i5( '5#/'( )!"'i!

's#/ s#$>i"#s( ; #i5 !%%#$#/ ! !h #!$2s ih ' si5)# i))i5 '/ s,s"$i#$

.$!%i)#* M!i)# !.#$'!$s "' ')s! $#,s# #=isi5 $'/i! si#s '/ '"2h',)i5 #,i.-# !

%'"i)i'# h# /#.)!&-# !% WiMA* Fi=#/ !.#$'!$s( i",-# !$ ')#$'#( i)) !%%#$

!-'/i" '/ P!$')# I#$# ,s'5# 's ' '//ii! ! h#i$ %i=#/ '""#ss !%%#$i5 !

"!-.)#-# h#i$ DSL '/ WiFi ,/)#* F!$ h!s# h'>i5 /#.)!/ WiMA %!$ %i=#/

'""#ss( his is ')s! ' ',$') #>!),i! !% h#i$ !%%#$i5*


26/39

" WIMAX TECHNOLOGY CHALLENGE

"2"WiMAX7 more *!e?i;i!ity and se)(rity

U)i2# WLAN( WiMA .$!>i/#s ' -#/i' '""#ss "!$!) :MAC; )'$

h' ,s#s ' 5$'$#,#s -#"h'is- ! ',h!$i# h# #="h'5# !% /''* This %#',$#

'))!s ##$ #=.)!i'i! !% h# $'/i! $#s!,$"#s( i .'$i",)'$ ih s-'$ '#'s( '/

i/#.#/# -''5#-# !% h# $'%%i" !% #>#$& ,s#$* This si-.)i%i#s h# s,..!$ !% $#')

i-# '/ >!i"# '..)i"'i!s *O# !% h# ihii!$s ! i/#s.$#'/ /#.)!&-# !% WLAN

's h# .!!$ s#",$i& %#',$# !% h# %i$s $#)#'s#s* WiMA .$!.!s#s h# %,)) $'5# !%

s#",$i&

%#',$#s ! #s,$# s#",$#/ /'' #="h'5#<

1* #$-i') ',h#i"'i! & #="h'5i5 "#$i%i"'#s ! .$#># $!5,# /#>i"#s(

+* ,s#$ ',h#i"'i! ,si5 h# E=#si)# A,h#i"'i! P$!!"!) :EAP;(

3* /'' #"$&.i! ,si5 h# D'' E"$&.i!

S'/'$/ :DES; !$ A/>'"#/ E"$&.i! S'/'$/ :AES;( !h -,"h -!$# $!,s h'

h# Wi$#)#ss E,i>')# P$i>'"& :WEP; iii'))& ,s#/ & WLAN* F,$h#$-!$#( #'"h

s#$>i"# is #"$&.#/ ih is ! s#",$i& 'ss!"i'i! '/ .$i>'# 2#&s*

"8" WiMAX7 a /ery e**i)ient radio so!(tion

WiMA -,s # ')# ! .$!>i/# ' $#)i')# s#$>i"# !>#$ )!5 /is'"#s ! ",s!-#$s ,si5

i/!!$ #$-i')s !$ PC "'$/s :)i2# !/'&s WLAN "'$/s; *Th#s# $#,i$#-#s( ih

)i-i#/ $'s-i .!#$ ! "!-.)& ih h#')h $#,i$#-#s( i)) )i-i h# )i2 ,/5#*

S,"h'#))i5 i ,.)i2 '/ s-'$ '#'s ' h# 's# s'i! h's ! !>#$"!-# h#s#

"!s$'is* Th# WiMA s&s#- $#)i#s ! ' # $'/i! .h&si"') :PHY; )'$ '/

'..$!.$i'# MAC )'$ ! s,..!$ ')) /#-'/s /$i># & h# '$5# '..)i"'i!s* Th#

PHY )'$ -!/,)'i! is 's#/ ! OFDMA( i "!-i'i! ih ' "#$')i#/ MAC

)'$ %!$ !.i-i#/ $#s!,$"# '))!"'i! '/ s,..!$ !% !S %!$ /i%%#$# &.#s !% s#$>i"#s


27/39

:V!IP( $#')i-# '/ ! $#')i-# s#$>i"#s( #s #%%!$;* Th# OFDMA PHY )'$ is #))

'/'.#/ ! h# NLOS .$!.'5'i! #>i$!-# i h# + 11 GH %$#,#"& $'5#* I is

ih#$#)& $!,s h# i "!-#s ! h'/)i5 h# si5i%i"' /#)'& s.$#'/ "',s#/ & h#

&.i"') NLOS $#%)#"i!s* T!5#h#$ ih '/'.i># -!/,)'i!( hi"h is '..)i#/ ! #'"h

s,s"$i#$ i/i>i/,'))& '""!$/i5 ! h# $'/i! "h'#) "'.'i)i&( OFDMA "' .$!>i/# '

hi5h s.#"$') #%%i"i#"& !% '!, 3 4 isH* H!#>#$( i "!$'s ! si5)# "'$$i#$

-!/,)'i!( h# OFDMA si5') h's ' i"$#'s#/ .#'2< '>#$'5# $'i! '/ i"$#'s#/

%$#,#"& '"",$'"& $#,i$#-#s* Th#$#%!$#( s#)#"i! !% '..$!.$i'# .!#$ '-.)i%i#$s

'/ %$#,#"& $#"!>#$& "!"#.s '$# "$,"i')* WiMA .$!>i/#s %)#=ii)i& i #$-s !%

"h'#)i'i!( "'$$i#$ %$#,#"&( '/ /,.)#= -!/# :TDD '/ FDD; ! -## ' >'$i#& !%

$#,i$#-#s %!$ '>'i)')# s.#"$,- $#s!,$"#s '/ '$5##/ s#$>i"#s* A i-.!$' '/

>#$& "h'))#5i5 %,"i! !% h# WiMA s&s#- is h# s,..!$ !% >'$i!,s '/>'"#/

'#' #"hi,#s( hi"h '$# #ss#i') ! .$!>i/# hi5h s.#"$') #%%i"i#"&( "'.'"i&(

s&s#- .#$%!$-'"#( '/ $#)i'i)i&<

1* #'- %!$-i5 ,si5 s-'$ '#'s .$!>i/#s '//ii!') 5'i ! $i/5# )!5 /is'"#s

!$ ! i"$#'s# i/!!$ "!>#$'5# i $#/,"#s i#$"#)) i#$%#$#"# '/ i-.$!>#s %$#,#"&

$#,s#(

+* $'s-i /i>#$si& '/ MIMO #"hi,#s ,si5 -,)i.)# '#'s '2# '/>''5# !%

-,)i.'h $#%)#"i!s ! i-.$!># $#)i'i)i& '/ "'.'"i&*

"#" System per*orman)e

T')# + 5i>#s &.i"') "#)) si# '/ h$!,5h., ' 3*7 GH i >'$i!,s "!%i5,$'i! '/

#>i$!-#s*


28/39


29/39

82" WIMAX AN, EXISTING TECHNOLOGIES

82"2" WiMAX di**erent *rom Wi0>i:

A)h!,5h h# %,/'-#') #"h!)!5& is h# s'-#( !>#$ i-# # "' '// )#>#)s !%

s!.hisi"'i! ! WiMA* WiFi "h'#)s !"",.& ' %i=#/ i/h !% h# s.#"$,-* B,

ih WiMA( #$# 5!i5 ! #')# h# $'%%i" )'#s 8 !$ "h'#)s 8 ! 5# s-'))#$ '/

'$$!#$* This h#).s s#$>i"# .$!>i/#$s s##2i5 ! !%%#$ i$#)#ss )'s-i)# DSL !$ "')#

&.# s#$>i"# #"',s# h#& "' .$!>i/# ' '$$!#$ "h'#) h' ,s#s )#ss '/i/h '/

s#$># -!$# ,s#$s* Y!, "' '2# h' ,s#/ ! # ' %i=#/ WiFi )'# '/ -'2# ' ,"h

-!$# )'#s*

Th# !h#$ i5 /i%%#$#"# ### WiFi '/ WiMA 8 s'$i5 $i5h ''& 8 is h' #$#

5!i5 ! ,s# )i"#s#/ s.#"$,- ! /#)i>#$ WiMA* T! /'#( ')) WiFi #"h!)!5& h's

## /#)i>#$#/ i ,)i"#s#/ s.#"$,-* WiMA i)) ,s# !# !% h# ,)i"#s#/

%$#,#"i#s( , #$# ')s! s,..!$i5 ! !h#$ %$#,#"i#s h' '$# )i"#s#/* Wh' h'

-#'s is h' &!, "' ,$ ,. h# !,., .!#$ '/ $!'/"'s )!5#$ /is'"#s* S! h#$#

WiFi is s!-#hi5 h' is -#'s,$#/ i h,/$#/s !% %##( ,s,'))& WiMA i)) h'># '

>#$& 5!!/ >'),# .$!.!sii! '/ '/i/h ,. ! s#>#$') -i)#s*

A)s! WiMA is /#si5#/ ! # ' "'$$i#$5$'/# #"h!)!5&( hi"h $#,i$#s ' hi5h#$ )#>#)

!% $#)i'i)i& '/ ,')i& !% s#$>i"# h' '$# ! '>'i)')# i &.i"') WiFi

i-.)#-#'i!s*

Th!s# %,/'-#') /i%%#$#"#s -'2# WiMA -!$# !% ' -#$!.!)i' '$#' '""#ss

#"h!)!5& >#$s,s h!s.!*

82"8" Wima? and $G

3G h's ## ,i) ! h# %!,/'i! !% ' >!i"# #!$2* A/ h# 3G "!--,i& is '//i5

/'' "'.'i)i& ! i* O,$ !6#"i># %!$ WiMA @0+*19# is ! # ' hi5h s.##/ /'' s#$>i"#

h' "' # ,s#/ ! #=#/ '/ "!-.)#-# 3G s#$>i"#* W# 2! !% s#>#$') 3G s#$>i"#


30/39

.$!>i/#$s h' '$# !$$i#/ h' 's /'' ,s# 5$!s h#& i)) ! h'># #!,5h s.#"$,- %!$

!h h#i$ >!i"# ",s!-#$s '/ h#i$ /'' ",s!-#$s* S! h#&$# i#$#s#/ i WiMA 's '

"!-.)#-#'$& /'' s#$>i"# #"h!)!5& h' h#& "' /#.)!& ih h#i$ 3G >!i"# s#$>i"#*

S! #ss#i'))&( WiMA is >#$& '$5##/ %!$ i$#)#ss /''( ! i$#)#ss >!i"#*

Th#$#s '!h#$ i5 /i%%#$#"# ### WiMA '/ "#)),)'$ #"h!)!5i#s i 5##$')*

C#)),)'$ 5$# ,. 8 -!$# !$ )#ss 8 h#$# h# h!)# s&s#- 's '$"hi#"#/ %$!- h#

#!$2 '/ 's# s'i! ')) h# '& !, ! h# ")i# 8 &.i"'))& h# .h!# 8 '/ /i%%#$#

>#/!$s #,i.-# /i/ #"#ss'$i)& !$2 !5#h#$* E>#,'))& h#$# #$# ' )! !%

s#.'$'# #!$2s* R!'-i5 '5$##-#s h'># ## ., i .)'"#( s! h' -!$# s! '/ -!$#

s! &!, "' !$2 ! !h#$ .#!.)#s #!$2s( ')h!,5h &!,)) # "h'$5#/ #=$' %!$ i* Wih

WiMA #$# !$2i5 ! 5# h' &.# !% i#$!.#$'i)i& '/ -!$# %$!- D'& O#*

Th' -#'s i% &!, ,& ' ")i# -'/# !, !% si)i"! & I#)( &!, "!,)/ ,s# i ! s#>#$')

/i%%#$# #!$2s #># i% h# 's# s'i!s '$# .$!>i/#/ & /i%%#$# "!-.'i#s*

82"#" W&at 6i!! (sers ;e a;!e to do /ia WiMAX t&at t&ey )ant do 6it& e?istin'

te)&no!o'ies:

Th#$# '$# '$#'s !% h# !$)/ #s.#"i'))& i #-#$5i5 -'$2#s '/ $,$') '$#'s 8 h#$#

/#.)!&i5 i$#/ $!'/'/ i%$'s$,",$# is ! "!s #%%#"i>#* WiMA is >#$& "!s

#%%#"i># #"h!)!5& ! ,i"2)& /#.)!& i h# $#5i!s hi"h !h#$is# !,)/ ! h'>#

$!'/'/ '""#ss* S! WiMA h#).s s.$#'/ $!'/'/ ! -!$# ,s#$s *

A!h#$ ##%i !% WiMA is h# 'i)i& ! 5# hi5h#$ "!#"i! s.##/s %'$h#$ ''&

%$!- h# $'s-i#$* Ri5h ! &!, "' 5# ' $#'))& hi5h s.##/ "!#"i! i WiFi ")!s#

! h# $'s-i#$* Th# !h#$ !.i! is h' &!, "' 5# ' .$#& s)! I#$# "!#"i!

,si5 ' "#)),)'$ #"h!)!5&( hi"h s.'s ' 5$#'#$ /is'"#* WiMA %is ### h!s#

! !%%#$i5s* Y!,)) 5# s.##/s si-i)'$ ! ")!s#,. WiFi "!#"i!s !, ! s#>#$')

-i)#s* *

WiMA i)) ')s! # -,"h #'si#$ ! is'))( hi"h -'2#s i -!$# "!s#%%#"i># %!$


31/39

s#$>i"# .$!>i/#$s '/ h!.#%,))& s!-# !% h!s# s'>i5s i)) '""$,# ! ,s#$s* F!$ #='-.)#(

ih @0+*19+004( s#$>i"# .$!>i/#$s i)) # ')# ! !%%#$ ,s#$s )'s -i)# '""#ss ih '

#=#$') '#' -!,* Sh!$)& h#$#'%#$ # #=.#" ! !%%#$ h' s'-# s#$>i"# s! .#!.)#

"' ., h' '#' isi/# ! h#i$ /#s2 #'$ h#i$ i/!* Eih#$ '&( is #'si#$ !

is')) h' WiFi( hi"h $#,i$#s .$#"is# ')i5-# ### '""#ss .!is* O,$ 5!') h#$#

is ! #')# s#)% is'))'i!*

Wh# @0+*19# "!-#s !, i +009( h# i-.$!>#-#s #"!-# -!$# !>i!,s* This is

h#$# #$# '//i5 s"')'i)i& '/ -,)i'""#ss "'.'i)ii#s ! h# %i=#/ OFDM

#"h!)!5&* W#)) -'2# h# "h'#)s s"')')# '/ h# )'#s /i%%#$# si#s ! #=#/

$!'/'/ i$#)#ss '""#ss '"$!ss ' )'$5#$ 5#!5$'.h&* As I -#i!#/ #'$)i#$( %i=#/

i$#)#ss '""#ss is 2! 's OFDM( '/ h# i/,s$& #$- %!$ his s"')')# #"h!)!5& is

SOFDMA 8 !$ S"')')# OFDM M,)iA""#ss* F$!- h# #"hi"') si/#( is ' .$#& i5

"h'5#* S! is >#$& si-i)'$ i "!"#. ! !/'&s -!$# #>!)>#/( -,)i'""#ss "#)),)'$

#"h!)!5i#s*


32/39

88" PROGRESS ON WIMAX STAN,AR,

Th# "!$# @0+*19 s.#"i%i"'i! 's ' 'i$ i#$%'"# s'/'$/ %!$

$!'/'/ i$#)#ss '""#ss s&s#-s ,si5 .!i!-,)i.!i i%$'s$,",$# /#si5s '/

!.#$'i5 ' $'/i! %$#,#"i#s ### 10 GH '/ 99 GH* Th' s'/'$/ 's

"!-.)## i -'& .#!.)#s -i/s* I '..)i#/ !)& ! )i#!%si5h /#.)!&-# i h#

)i"#s#/ s.#"$,-( /i/ !%%#$ '& "!%!$-'"# 5,i/#)i#s( '/ i5!$#/ !5!i5

/#>#)!.-# !% h# si-i)'$ E,$!.#' Hi.#$MAN s'/'$/*

.

Th# @0+*19' "!))#"i! !% '-#/-#s '2#s i! '""!, h# #-#$5#"# !% )i"#s#/ '/

)i"#s##=#-. $!'/'/ i$#)#ss #!$2s !.#$'i5 ### + GH '/ 11 GH( ih

s,..!$ %!$ !)i#!%si5h '$"hi#",$#s h' "!,)/ ! # s,..!$#/ i hi5h#$


33/39

%$#,#"& $'5#s* Th# @0+*19' >#$si! '//s h$## # PHY)'$ s.#"i%i"'i!s< ' si5)#

"'$$i#$ )'$( ' +79.!i FFT OFDM :%'s F!,$i#$ $'s%!$- !$h!5!') %$#,#"&

/i>isi! -,)i.)#=i5; )'$( '/ ' +04@.!i FFT OFDMA )'$ . Th# +79.!i

'>#%!$- is #-.)!/ & !h WiMA '/ h# E,$!.#' T#)#"!--,i"'i!s

S'/'$/s Isi,# :ETSI;s Hi.#$MAN s'/'$/( #s,$i5 !$)/i/# i#$!.#$'i)i&*

Th# '-#/#/ s'/'$/ '))!s WiMA /#.)!&-# i >'$&i5 "h'#) "'.'"ii#s !

'//$#ss h# /i%%#$# '-!,s !% s.#"$,- h' "'$$i#$s ! %$!- -'$2# ! -'$2# '/ i

/i%%#$# .'$s !% h# !$)/* Th# i"),si! !% i-# /i>isi! /,.)#=i5 :TDD; '/

%$#,#"& /i>isi! /,.)#=i5 :FDD; '//s ! WiMAs i#$'i!') .!#i')*1 Th#

@0+*19' >#$si! ')s! -'2#s #h'"#-#s ! h# M#/i' A""#ss C!$!) :MAC; )'$(

'/ '//s ,')i& !% s#$>i"# %#',$#s*Whi)# @0+*19' /!#s -,"h ! i-.$!># ! h# !$i5i') s'/'$/( h# "!$# s'/'$/ h's h'/

#!,5h '-#/-#s ''"h#/ ! i h' h# IEEE is ! $#/$'%i5 h# s.#"i%i"'i!* Th#

# s'/'$/( $#%#$$#/ ! 's @0+*19 R#>isi! D( 's '..$!>#/ 's ' IEEE s'/'$/ i

J,# +004* Th# # "!$# s.#"i%i"'i! i)) i"),/# #>#$&hi5 h' h's "h'5#/ '!, h#

s'/'$/ h,s %'$* Th# i +007( h# IEEE .)'s ! .$!/,"# @0+*19#( h# '-#/-#

i$!/,"i5 -!i)i&*


34/39

8#" INTEL=S ROLE IN WIMAX

Th# i$#)#ss i/,s$& is #>!)>i5 %$!- ' # !% i/#.#/#

#!$2s i! ' si5)#( i#5$'#/ i$#)#ss #!$2 ih -,)i.)# s'/'$/s* Th#

#=.#"'i! is h' WiFi( WiMA '/ 3G i)) "!#=is '/ h' h#i$ "!#=is#"# is 5!i5

! #')# ' h!s !% #="ii5 # '..)i"'i!s '/ ,si#ss -!/#)s*

I#) is /#>#)!.i5 s'/'$/i#/( hi5h.#$%!$-'"# si)i"! ! '//$#ss ')) !% h# -,)i.)#

$!'/'/ i$#)#ss #"h!)!5i#s( 's #)) 's ' $'5# !% .$!/,"s %!$ -!/,)'$

"!--,i"'i!s #!$2s h' i)) # "$,"i') i h# /#.)!&-# !% $!'/'/ i$#)#ss*

Th# %i$s @0+*19#')#/ "hi.s '$# s"h#/,)#/ %!$ shi.-# i h# s#"!/ h')% !% +004*

WiMA "'.'i)i& ,i) i! !#!!2 "!-.,#$s is '$5##/ %!$ +009( %!))!#/ &

h'/s#s '$5##/ %!$ +00*

I#) %!$#s##s si5i%i"' WiMA !..!$,ii#s !>#$ h# #= %i># '$s( si-i)'$ ! h!s#

h' #-#$5#/ ih WiFi* I#) 'i"i.'#s %i$s ' .$!5$#ssi! %$!- %i=#/ @0+*19 i$#)#ss

#!$2s ! 's# s'i!s #-.)!&i5 h# #-#$5i5 @0+*19# s.#"i%i"'i! %!$ $!'/'/

i$#)#ss .!$'i)i&* F'$h#$ !%% ! h# h!$i! is s#'-)#ss -!i)i&*

I#) h's %!$-'))& '!,"#/ is %i$s WiMA .$!/,"( ' s&s#-!'"hi. "'.')# !%

$#"#i>i5 i$#)#ss $!'/'/ si5')s !h isi/# '/ !,si/# ",s!-#$ .$#-is#s*

Th# P$!Wi$#)#ss 7119 is %,))& "!-.)i' ih h# @0+*19+004 s'/'$/( I#) s'i/( '/ is

h# %i$s .$!/," !% is 2i/ ! # !.i-is#/ %!$ "!s#%%#"i># -!/#-s '/ $#si/#i')

5'#'&s( h# "hi.-'2#$ s'i/* P$!/,"s 's#/ ! h# .'$ '$# #=.#"#/ ! shi. & h#

#/ !% h# '$( h'>i5 %i$s 5'i#/ i#$!.#$'i)i& "#$i%i"'i! %$!- i/,s$& !/& h#

WiMA F!$,-( hi"h !/'& "!>#i#)& '!,"#/ 6,s s,"h ' "#$i%i"'i!

.$!5$'--#*

F!$-#$)& 2! & is "!/#'-#( R!s#/')#( h# 7119 is /#si5#/ ! -'i'i $!'/'/

"!#"i!s ### %i=#/ '#'#* F,,$# >#$si!s !% h# .$!/," '$# #=.#"#/ !

s,..!$ h# @0+*19# s.#"i%i"'i!( hi"h '//s s,..!$ %!$ -!i)# #/,s#$ 2i* L's ##2(


35/39

I#) .)#/5#/ ! s!)># i si)i"! h# ih#$# i"!-.'ii)ii#s ### h# @0+*19# '/

@0+*19+004 s.#"i%i"'i!s*

M#'hi)#( h# 7119 h's ')$#'/& ! h# s,..!$ !% #,i.-# -'2#$s( ih h# )i2#s !%

Ai$s.'( A)>'$i!( A.#$!( G#-#2( H,'#i( P$!=i-( R#/)i#( Si#-#s '/ XTE >!i"i5

h#i$ #h,si's- %!$ I#)s # i$#)#ss "hi.* S! !! /i/ ' $'5# !% "'$$i#$s( ')) )!!2i5

! ,s# WiMA ! #=#/ h# $#'"h !% h#i$ $!'/'/ !%%#$i5s*

Th# WiMA F!$,-s i#$!.#$'i)i& "#$i%i"'i! .$!5$'--# i)) !.#$'# !, !% is

M')'5'( S.'i %'"i)i&( '/ i)) !.# %!$ ,si#ss i J,)&* I i)) '2# i h# E,$!.#'

T#)#"!--,i"'i!s S'/'$/s Isi,# :ETSI; Hi.#$MAN s.#"i%i"'i!* A)) S!,h

K!$#' !.#$'!$s '"2i5 h# )!"') WiMA)i2# WiB$! s&s#- '$# ! -#-#$s !% h#

F!$,-( hi"h sh!,)/ ,)i-'#)& #s,$# i#$!.#$'i)i& ### h#s# ! #"h!)!5i#s

!!*

Th# %i$s WiMA F!$,- C#$i%i#/ .$!/,"s '$# #=.#"#/ i h# N!>#-#$D#"#-#$

i-#%$'-#( h# F!$,- s'i/* Th# F!$,- i)) iii'))& "#$i%& #,i.-# 's#/ ! !

.$!%i)#s< Ti-# Di>isi! D,.)#=i5 :TDD; '/ F$#,#"& Di>isi! D,.)#=i5 :FDD; i

h# 3*7GH %$#,#"& '/ ih 3*7MH "h'#)is'i!* B's#/ ! -'$2# /#-'/ '/

>#/!$ .$!/," s,-issi!s( -!$# .$!%i)#s i)) # '//#/ i +009( i s'i/* Th# F!$,- .$!-is#/ ')) %,,$# #h'"#-#s ! h# 's#)i# .$!%i)#s i)) s,..!$ '"2'$/

"!-.'ii)i&*

http://www.theregister.co.uk/2005/04/14/802-16_wimax_muddle/http://www.theregister.co.uk/2005/04/14/802-16_wimax_muddle/


36/39

13* WIMA SPECTRUM AND REGULATION ISSUES

WiMA"!-.)i' #,i.-# i)) # '))!#/ ! !.#$'# i !h

)i"#s#/ '/ ,)i"#s#/ '/s* Th# -ii-,- "h'#) '/i/h %!$ WiMA ,s'5# is

1*7 MH .#$ "h'#)( hi)# 10 MH is "!si/#$#/ 's ' !.i-,-* A)h!,5h +*4 GH

'/ 7 GH !)i"#s#/ '/s '$# )'$5#)& '>'i)')#( h#i$ ,s'5# "!,)/ # )i-i#/ ! $i')s

#"',s# !% h# $is2s !% i#$%#$#"# .$#>#i5 !S "!--i-#s* Th# +*7 '/ 3*7 GH

)i"#s#/ '/s i)) # h# -!s "!--! '/s %!$ WiMA '..)i"'i!s* I sh!,)/ #

!#/ h' h# 7 GH '/ is ')s! .'$i'))& )i"#s#/ i s!-# "!,$i#s* M!s "!,$i#s

h'># ')$#'/& '))!"'#/ )i"#s#/ s.#"$,-( 5##$'))& ! ')#$'# !.#$'!$s* N#>#$h#)#ss

)'$5# ,'ii#s !% s.#"$,- '$# si)) i .$!"#ss !% '))!"'i!( '/ s!-# "!,$i#s h'># !

#># /#%i#/ '& WiMA )i"#s#/ '/s * WiMA is /#si5#/ ! '""!--!/'#

#ih#$ F$#,#"& Di>isi! D,.)#=i5 :FDD;( hi"h is -!$# s,i#/ ! ##$.$is# $'%%i"( !$

Ti-# Di>isi!

D,.)#=i5 :TDD;( hi"h is -!$# '/'.#/ ! 's&--#$i"') $'%%i"* C!h'i'i! !% FDD

'/ TDD #"hi,#s is .!ssi)# ihi h# s'-# '/s( .$!>i/#/ 5,'$/ '/s '$#

i-.)#-##/*


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81" WHAT LIES AHEA,

I#) is !$2i5 h$!,5h h# WiMA F!$,- ! %'"i)i'# h#

/#.)!&-# !% $!'/'/ #!$2s 's#/ ! h# @0+*19 s'/'$/* Th# WiMA F!$,-

"!siss !% -!$# h' 100 -#-#$s( i"),/i5 )#'/i5 #,i.-# -',%'",$#$s( s#$>i"#

.$!>i/#$s '/ s&s#-s i#5$'!$s* Th# !$5'i'i! i)) h#). #s,$# h# "!-.'ii)i&

'/ i#$!.#$'i)i& !% WiMA $!'/'/ i$#)#ss '""#ss #,i.-#*

A",') .$!/,"s '$# ! h' %'$ !%%* I J,# +004( I#) '/ P$!=i- C!$.!$'i!

'!,"#/ ' "!))'!$'i! ! /#>#)!. '/ /#)i>#$ @0+*19 s!),i!s %!$ %i=#/ '/ .!$')#

$!'/'/ i$#)#ss '""#ss* Th# '5$##-# i"),/#s h# /#>#)!.-# !% 's# s'i! '/

s,s"$i#$ ,i '""#ss .!is* As .'$ !% h# '5$##-#( h# "!-.'i#s i)) "!/#>#)!. '

$#%#$#"# /#si5 %!$ WiMA ",s!-#$ .$#-is# #,i.-#* This $#%#$#"# /#si5 i))

#')# s,s"$i#$ s'i! /#si5#$s ! $i5 .$!/,"s ! -'$2# %'s#$( h#).i5 .$!)i%#$'#

h# ,s# !% @0+*19 %!$ !h )i"#s#/ '/ ,)i"#s#/ #!$2s* P$!=i- .)'s ! /#)i>#$ is

%i=#/ WiMA"#$i%i#/ $!'/'/ i$#)#ss s!),i! i #'$)& +007 '/ .!$')# WiMA

"#$i%i#/ s!),i!s i )'# +007*

I#) h's ')s! '!,"#/ i is !$2i5 ih #)#"!--,i"'i!s #,i.-# "!-.'i#s

Ai$s.' N#!$2s( A)>'$i!( A.#$! N#!$2s '/ R#/)i# C!--,i"'i!s ! WiMA

#,i.-# ,si5 I#) si)i"!* T#)#"!- "'$$i#$s !$2i5 ih I#) i"),/# B$iish

T#)#"!-( I#$'/' :S.'i;( PCCW :H!5 K!5; '/ R#)i'"# I%!"!-- :I/i';*

http://www.intel.com/pressroom/archive/releases/20040617net.htmhttp://www.intel.com/pressroom/archive/releases/20040617net.htm


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83" CONCL%SION

Th# )'#s /#>#)!.-#s i h# IEEE @0+*19 5$!,. '$# /$i>i5 '

$!'/'/ i$#)#ss '""#ss $#>!),i! h'2s ! ' s'/'$/ ih ,i,# #"hi"')

"h'$'"#$isi"s* I .'$'))#)( h# WiMA %!$,-( '"2#/ & i/,s$& )#'/#$s( h#).s h#

i/#s.$#'/ '/!.i! !% $!'/'/ i$#)#ss '""#ss & #s')ishi5 ' $'/ %!$ h#

#"h!)!5&* Iii'))&( WiMA i)) $i/5# h# /i5i') /i>i/# '/ h'2s ! "!-.#ii>#

#,i.-# .$i"#s( h# s"!.# !%

WiMA /#.)!&-# i)) $!'/# ! "!>#$ -'$2#s h#$# h# )! POTS .##$'i!(

hi5h DSL ,,/)i5 "!ss( !$ .!!$ "!..#$ ,')i& h'># '"#/ 's ' $'2# ! #=#si>#

hi5hs.##/ I#$# '/ >!i"# !>#$ $!'/'/* WiMA i)) $#'"h is .#'2 & -'2i5

P!$')# I#$# ' $#')i&* Wh# WiMA "hi.s#s '$# i#5$'#/ i! )'.!.s '/ !h#$ .!$')# /#>i"#s( i i)) .$!>i/# hi5hs.##/ /'' s#$>i"#s ! h# -!>#( #=#/i5 !/'&s

)i-i#/ "!>#$'5# !% .,)i" WLAN ! -#$!.!)i' '$#'s* I#5$'#/ i! # 5##$'i!

#!$2s ih s#'-)#ss $!'-i5 ### >'$i!,s '""#ss#s( i i)) #')# #/,s#$s !

#6!& ' A)'&s B#s C!#"#/ #=.#$i#"#*

Th# "!-i'i! !% h#s# "'.'i)ii#s -'2#s WiMA '$'"i># %!$ ' i/#

/i>#$si& !% .#!.)#< %i=#/ !.#$'!$s( -!i)# !.#$'!$s '/ i$#)#ss ISPs( , ')s! %!$

-'& >#$i"') -'$2#s '/ )!"') ',h!$ii#s* A)"'#)( h# !$)/i/# $!'/'/ -'$2#

)#'/#$ ih ' -'$2# sh'$# i #="#ss !% 3( is "!--i#/ !%%#$ "!-.)## s,..!$ '"$!ss

h# #i$# i>#s-# '/ !.#$'i!') "&")# $#,i$#/ %!$ s,""#ss%,) /#.)!&-# !%

WiMA s#$>i"#s*


39/39

84" RE>ERENCES

84"8 RE>ERE, GENERALS9

1* IEEE @0+*19*3"01+$4( Ch'#) M!/#)s %!$ Fi=#/ Wi$#)#ss A..)i"'i!s,”

+* WiMA< Th# C$ii"') Wi$#)#ss S'/'$/( B),#P$i WiFi R#.!$(O"!#$ +003

3* WiMA@0+*19 '/ @0+*+0( ABI R#s#'$"h( 4 +00( L's Mi)# Wi$#)#ss Hi5h S.##/

M'$2#( S2&)i5h R#s#'$"h(M'$"h +004

84"#"+ISITE, SITES9

1* *H! S,%% W!$2s *"!-+* *WIMA FORUM*"!-

3* *i-'=%!$,-*!$5
http://www.how/http://www.wimax/http://www.how/http://www.wimax/

seminar final.doc

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