presentation on WiMAX

7/23/2019 presentation on WiMAX

http://slidepdf.com/reader/full/presentation-on-wimax 1/21

DEPT. OF ELECTRICAL AND ELECTRONICS

ENGINEERING

STAMFOTD UNIVERSITY BANGLADESH

FUNDAMENTAL STUDY OF WIMAX

BY MD. FAHAD KHAN, WASHIMUL ISLAM, ASRAFUL MASUD, NIPUN HALDER ANIK

ADVISOR:MUHAMMAD MOSHIUR RAHMAN TARAFDER



Outline

What i WiMA!O"e#"ie$ %& a WiMA!

The Me'iu( A))e C%nt#%l La*e#H%$ WiMA! W%#+,ualit* %& Se#"i)e

Dealin- $ith Inte#&e#en)e %& WiMA!Se)u#it*



WHAT IS WIMA!

Worldwid I!"ro#r$%ili"& o' Mi(row$) A((** orWiMAX i* $ wirl** I!"r!" *r)i( d*i+!d "o (o)r

wid +o+r$#i($l $r$* *r)i!+ l$r+ !-%r o' -*r* $"

low (o*".

T "(!olo+& i* *#(i'id %& i!*"i"-" o' El("ri($l $!d

El("ro!i(* E!+i!r* I!(. $* " IEEE /01.23 *"$!d$rd.



BASIC CONSTITUENT OF TELECOMMUNICATIONS

NETWOR/

A((** A((**Swi"(i!+ Swi"(i!+

Tr $r "r (o#o!!"* o' $ "l#o! !"wor4. A! -!dr*"$!di!+ o' "

wor4i!+* o' " P-%li( Swi"(d Tl#o! N"wor4 5PSTN6 i* %*" +r$*#d %& -!dr*"$!di!+ i"* "r $7or (o#o!!"* :

"r$!*#or"

A((**

Swi"(i!+

Tr$!*#or"



PERFORMANCE OF CRITERIA OF WIRELESS

NETWOR/

T #o*i"io! "$" wirl** "(!olo+i* will r#l$( " PSTN "* wi" $

!-%r o' o%7("io!*. Pri$ril&, "* o%7("io!* $r 'o(-*d o!

8-$li"& o' *r)i( 58oS6 i**-*

S(-ri"& o' " wirl** !"wor4

Lii"$"io!* i! " r$!+ o' " dli)r& o' " *r)i(

T $)$il$%ili"& o' %$!dwid"



OSI MODEL

T O#! S&*"* I!"r(o!!("io! odl 5OSI odl6 i* $ (o!(#"-$l odl "$"

($r$("ri9* $!d *"$!d$rdi9* " (o-!i($"io! '-!("io!* o' $ "l(o-!i($"io!*&*". I"* +o$l i* " i!"ro#r$%ili"& o' di)r* (o-!i($"io! *&*"* wi"

*"$!d$rd #ro"o(ol*. T ori+i!$l )r*io! o' " odl d'i!d *)! l$&r*.

I! " *)!l$&r OSI odl o' (o#-"r !"wor4i!+, " #&*i($l l$&r i* " 'ir*"

5low*"6 l$&r.

0.A11li)ati%n La*e#

2.P#eentati%n La*e#

3.Sei%n La*e#

4.T#an1%#t La*e#

5.Net$%#+ La*e#

6.Data lin+ La*e#

7.Ph*i)al La*e#



ISSUS RELATED TO THE PHYSICAL LAYER OF WIMA!

Or"o+o!$l Fr;-!(&Di)i*io!

M-l"i#l<i!+ 5OFDM6

Ti Di)i*io! D-#l< 5TDD6

Fr;-!(& Di)i*io! D-#l< 5FDD6

Ad$#"i) A!"!!$ S&*" 5AAS6



MAC AND PHYSICAL LAYERS OF IEEE 896.72

MAC CONVERGENCESUBLAYER

MAC LAYER

PHYSICAL LAYER

MAC PRIVACY SUBLAYER

ATM: Ethe#net: IP: 896.7,

Pa)+in-: F#a-(entati%n: AR,: ,%S

Authenti)ati%n: /e* E;)han-e P#i"a)*

<En)#*1ti%n=

OFDM: Ran-in-: P%$e# C%nt#%l: DFS:

T#an(it: Re)ei"e



AAS > AD APTIVE ANTENNA SYSTEMS

Ti* i* $ %$'ori!+ "(!i;- $!d 'o(-** o!-*i!+ -l"i#l $!"!!$* "o $d$#" " *i+!$l

!r+& i! (r"$i! dir("io! d&!$i($ll&. Two

#$r$"r* $r d&!$i($ll& ($!+d i! AAS.

B$ $!+l $!d %$ wid". To *-##or" -l"i#l

o%il *-%*(ri%r* i! $ *i!+l *-%($!!l $

"(!i;- 4!ow! $* SDMA i* -*d. SDMA

*"$!d* 'or S#$( Di)i*io! M-l"i#l A((**.

Bae Stati%n



THE MAC AND WIMA! ARCHITECTURE

T&#i($l WiMAX $r(i"("-r 'or #oi!""o -l"i#oi!"di*"ri%-"io!

IP (lo-d= L i " > % - i l d i ! + i ! . " r o $ r $

B$* S"$"io!

B$* S"$"io!

B$* S"$"io!



SERVICE SPECIFIC CONVERGENCE SUB

LAYERS

C%((%n Pa#t Su? la*e#

T Mdi- A((** ?o!"rol r*r)* $ddi"io!$l (o!!("io!* 'or o"r #-r#o**. O!

(o!!("io! i* r*r)d 'or (o!"!"io!%$*d i!i"i$l $((**. A!o"r i* r*r)d 'or

%ro$d($*" "r$!*i**io!* i! " Dow!li!4 $* wll $* 'or *i+!$li!+ %ro$d($*" (o!"!"io!

%$*d #olli!+ o' S-%*(ri%r S"$"io! %$!dwid" !d*. Two $dr 'or$"* $r d'i!d:

i. T +!ri( $dr $!d

ii. T %$!dwid" r;-*" $dr

. MA? PDU* (o!"$i! i"r MA? $!$+!" **$+* or (o!)r+!( *-% l$&r d$"$.

Tr $r "r "&#* o' MA? *-% $dr* :

G#ant (ana-e(ent u? hea'e#

F#a-(entati%n u? hea'e#

Pa)+in- u? hea'e#



FRAGMENTATION AND PAC/ING OF SDUS AND PDUS

Fr$+!"$"io! i* " #ro(** i! wi( $ MA? 5Mdi- A((** ?o!"rol6 SDU 5*r)i( D$"$ U!i"6 i*

di)idd i!"o o! or or Mdi- A((** ?o!"rol o' *r)i( D$"$ U!i" 'r$+!"*. P$(4i!+ i* " #ro(**

i! wi( -l"i#l MA? 5Mdi- A((** ?o!"rol6 SDU* 5*r)i( D$"$ U!i"6 $r #$(4d i!"o $ *i!+l

MA? PDU #$&lo$d. Ei"r $ B$* S"$"io! 'or $ Dow!li!4 (o!!("io! or $! S-%*(ri%r S"$"io! 'or $!

U#li!4 (o!!("io! $& i!i"i$" %o" #ro(***.

MAC La*e# Se#"i)e A))e P%int

MAC La*e#

PHY La*e# Se#"i)e A))e P%int

PHY La*e#

SDU

PDU

SDU

PDU

SDU

SDU

PDU

PDU



CHANNEL AC,UISITION

?$!!l $(;-i*i"io! i* " #ro(** o' 'i!di!+ $!d $(;-iri!+ $((** "o $

(o-!i($"io! ($!!l. W! WiMAX d)i(* i!i"i$li9 ,"& %+i! $ ($!!l*($!!i!+ #ro(**. " *-%*(ri%r "$4* " SS o-" o' " %o<, #l-+* i! #owr $!dE"r!", $!d (o!!("* $lo*" idi$"l& "o " !"wor4.

7.SS ?e-in )annin- 1#eet &#e@uen)* &%# ?ae tati%n.

6. BS #e1%n'. S*n)h#%nie $ith SS.

5. Ran-in- 1a#a(ete# et UL>MAP (ea-e in e"e#* &#a(e.

SS ?u#t $ith in)#eain- 1%$e# until it #ea)he#e)ei"e

a #an-in- #e1%ne &#%( BS.

4. BS #e1%n' $ith ti(in- an' 1%$e# a'ut(ent: (ana-e(ent CID.

3. SS #e1%#t it 1h*i)al la*e# )a1a?ilitie <(%'ulati%n)%'in- )he(e=.

2. BS a))e1t SS i #ea'* &%# e#"i)e &l%$.



RADIO LIN/ CONTROL <RLC=

R$dio li!4 (o!"rol #ro"o(ol i* $ l$&r 1 5li!4 l$&r6 "$" i* -*d "o (oordi!$" "

o)r$ll 'low o' d$"$ #$(4"* $(ro** " r$dio li!4. RL? -** rror d"("io! $!dd$"$ r"r$!*i**io! "o i!(r$* " rli$%ili"& o' " r$dio li!4 wil rd-(i!+ "rror r$".

7.BS ?#%a')at ?u#t 1#%&ile &%# u1lin+ <UIUC= an' '%$nlin+ <DIUC=.

6. SS '%e 1%$e# le"elin- an' #an-in- $ith #an-e #e@uet <RNG> RE,=.

5. BS #e1%n' $ith #an-e #e1%ne <RNG> RSP=.

4. SS t#an(it #e@uet &%# DIUC t% BS.

3. BS )%n&i#( the )h%i)e in #an-e #e1%ne an' )%((an' SS t% ue a

1a# titula# u1lin+ ?u#t 1#%&ile UIUC in the UL> MAP (ea-e.

2. Ra'i% Lin+ C%nt#%l )%ntinue t% a'a1t the SS )u##ent UL an' DL

Bu#t 1#%&ile.

0. BS )an -#ant '%$nlin+ ?u#t 1#%&ile )han-e #e@uet <DBPC> RSP=.



LEGACY ,UALITY OF SERVICE MECHANISMS

?o!*idri!+ " wirl** ($!!l rli$%ili"& i**-, )$rio-* rror (o!"rol

($!i** $) $l*o %! i!"rod-(d $* #$r" o' " "r$!*i**io! #ro"o(ol* "oi#ro) 7i""r, lo** r$", $!d o)r$ll "ro-+#-". T l+$(& 8oS ($!i**i!(l-d " 'ollowi!+.

2. Fr;-!(&di)i*io! d-#l< @ Tidi)i*io! d-#l< @ Or"o+o!$l 'r;-!(&di)i*io!

-l"i#l<i!+1. Forw$rd Error ?orr("io! 5FE?6

. WiMAX S-##or"* 8oS Tro-+ Di''r!" T&#* o' Sr)i( $* Li*"d :

26 U!*oli(i"d r$!" Sr)i(* 5US6

16 R$l"i #olli!+ *r)i(

6 US wi" $("i)i"& d"("io!

C6 B*"''or" *r)i(

6 No!r$l"i #olli!+ *r)i(



NE!T GENERATION ,OS MEASURES TO

WIMA!

WiMAX #lo&* %o" l+$(& $!d !<" +!r$"io! 8oS $*-r*.

T 'ollowi!+ *("io!* will 'o(-* o! !<" +!r$"io! 8oS $*-r*

#(-li$r "o WiMAX.

A (o!'i+-r$"io! $!d r+i*"r$"io! '-!("io! 'or #r (o!'i+-ri!+ SS %$*d 8oS *r)i( 'low*

$!d "r$''i( #$r$"r*

A *i+!$li!+ '-!("io! 'or d&!$i($ll& *"$%li*i!+ 8oS!$%ld *r)i( 'low* $!d "r$''i(

#$r$"r*

U"ili9$"io! o' MA? *(d-li!+ $!d 8oS 'r$ #$r$"r* 'or UL *r)i( 'low*

U"ili9$"io! o' 8oS "r$''i( #$r$"r* 'or DL *r)i( 'low*

ro-#i!+ o' *r)i( 'low #ro#r"i* i!"o !$d *r)i( (l$***, *o -##rA&r !"i"i* $!d

<"r!$l $##li($"io!* 5$" %o" " SS $!d BS6 $& r;-*" *r)i( 'low* wi" d*ird 8oS

#$r$"r* i! $ +lo%$ll& (o!*i*"!" w$&



FORMS OF INTERFERENCE

I!"r'r!( ($! % (l$**i'id i!"o "wo %ro$d ($"+ori* :

(o($!!l 5?o?6 i!"r'r!( 5i!"r!$l6 o-"o'($!!l i!"r'r!( 5<"r!$l6

T ($!!l %$!dwid" o' " ?o? i!"r'rr $& % widr or

!$rrowr "$! " d*ird *i+!$l. I! " ($* o' $ widr ?o?

i!"r'rr, o!l& $ #or"io! o' i"* #owr will '$ll wi"i! " r(i)r 'il"r %$!dwid". A! o-" o'($!!l i!"r'rr i* $l*o *ow!.

O u t - o f c h a n n e l I n t e r f e r e r

? o:(,$ !! l I !" r ' r r

R(i)r Fil"r ?$r$("ri*"i(

D*ird Si+!$l

Tr$l Noi*



COUNTERING INTERFERENCE

Fo-r #$r$"r* $r %ro-+" -!dr " (o!"rol o' !"wor4

#l$!!r* "o i!ii9 <"r!$l *o-r(* o' i!"r'r!(:

ChannelBan'F#e@uen)*

Ditan)e t% the inte#&e#en)eDitan)e t%

inten'e' i-nal <)l%e# i ?ette#=

P%$e# le"el <l%$e# i ?ette#=

Antenna te)hn%l%-*



MITIGATING INTERFERENCE WITH

ANTENNA TECHNOLOGY

Multi1le Antenna

Ad$#"i) $!"!!$* -* %$

'ori!+ "o $)oid i!"r'r!(



MITIGATING INTERFERENCE WITH ANTENNA

TECHNOLOGY

A'a1ti"e Antenna Te)hni@ue

B $ * S " $ "

i o !

O - " : o ' :

( l l

I ! " r '

r ! (

N o ! : A

A S ( l l

A A S ? l l



SECURITY IN WIMA! NETWOR/S

The Se)u#it* Su?la*e#

The P/M P#%t%)%l

TE/ E;)han-e O"e#"ie$

C#*1t%-#a1hi) Meth%'

presentation on WiMAX

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