Broad Band Wireless Access-WiFi & WiMAX

7/25/2019 Broad Band Wireless Access-WiFi & WiMAX

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Broadband Wireless Access:

Wi-Fi & WiMAX


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The Wireless Landscape

WMN

Mbps1 10 1000,1

Outsid

e

Campu

s

Fixed

Walk

Vehicle

Within

Campus

Fixed/

Desktp

Walk

Mobility

UMTS/E

V-DO

80

2.11

a/g

80

2.11

b

80

2.11

Bluetooth

SM!"S

#

WiM$%

802.11&


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!

Wi(i

"What is Wi(i )

# *&te+ ope+ability sta&,a+, o+ Wi+eless (i,elity usi&g*EEE 802.11b/802.11a/802.11g sta&,a+,s.


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$

" o *EEE802.11b/802.11g i&te+o+ ith i+e, $N*EEE802.#Usi&g $33ess !oi&t 4$!5 hi3h o+s as a b+i,ge betee&

these to &eto+s

Wi(i

" Wi-(i $llia&3e .i-i.o+g

# No& p+oit i&te+&atio&al asso3iatio& 3e+tiyi&g i&te+ope+abilityo i+eless lo3al a+ea &eto+ p+o,u3ts base, o& *EEEspe3ii3atio&.


5/27

%

"WL&' is takin( )er

# *me, O++ice and Cit-

# .)erthin( shippin( ith

WL&', laptps, D&s, hmeappliances

# tandards dri)en

# 02311 standards cmmunitis as 4i( as cellular

standards

" art + n(in( trend tprta4le cmputin(# Cnsumer dri)en

Centrin e++ect

#Cnsistent user experiencet L&'

# 5nlicensed, simple,cmpetiti)e market place

# 6nexpensi)e

Why W$N )


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Conventional cellular systems

concentrate on big RF

deployment.

Radios blast over and through

the environment.

Signals from central station must

penetrate the cluttered

environment to reach the end

user.

Coverage is determined mainly by

the random shadowing andpenetration loss, not the distance.

Reuires high elevation and high

RF power to overcome losses

Wireless Cellular NetworkPrinciples


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!ireless mesh networ" routes

around the bloc"ages

#ses smart software

$ine%of%sight path loss

&o shadowing

$ow power as the losses are

lower

'igher transmission rates

'igher throughput

Coverage is concentrated

where the users are and not

wasted penetrating obstacles.

Wireless Mesh NetworkPrinciples


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"802.11 - *EEE 3o66ittee o+i+eless la& solutio&s7 also 3a&+ee+ to the i+st sta&,a+,ise,W$N

"802.11b -The 6ost

3o66o&ly &eto+ se+i3e7116bs uses 4DSSS5use the 2.# 9

"802.11a - O(DM7 :# Mbs7uses : 9 ba&,7 less

i&te+e+e&3e

"802.11g -O(DM7 :# Mbs7uses 2.# a&, is ba3a+,s3o6patible ith 802.11b

" Wi-(i ; Wi+eless Ethe+&etp+o6otio& asso3iatio&/i&te+ope+abilitytesti&g

" " = ; Me,iate+6

" 802.11&; 100Mbit?" WiM$% ; 802.1@ =Wi+eless

*&te+ope+ability o+ Mi3+oae $33ess

tandards and Terms


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A28M9A00M9

9adi Fre:uenc pectrum

:.1: :.2: :.: :.2: :.82:2.#8:92.#0009

A00 M9 2.#9

:. 9

802.117 11b7 11g7 Bluetooth

*SM

" 6ndustrial cienti+ic and ;edical


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WiM$%


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Wi-M$%

" Wi>;&? 6ntr3

" 'etrk &rchitecture3

" 9F pectrum and C)era(e3


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What is ?What is ?

" Wi;&? r Worldwide Interoperability for Microwave AccessA had its ri(insin 4ackhaul cnnecti)it usin( micra)e access such as L;D/;;D

" Wi;&? has 4ecme a Bht tpicA in the ireless industr, ith )isi4le anda((ressi)e 4ackin( +rm 6'T.L, amn( thers

" Wi;&? is desi(ned t pr)ide Blast>mileA r B4ackhaulA cnnecti)it usin(ireless

# BLast>mileA re+ers t a ireless cnnectin +rm a mar trunk line t a 4usinessr residential user

# 5sin( 6... 0231% rad4and Wireless &ccess


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1!
http://www.wimaxforum.org/


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1$


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1%


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Sta&,a+, base, te3h&ology

" ;ultiple )endrsLer in)estment risk +r peratrs

" ets the +undatin +r cmpetiti)e, cst e+ecti)eslutinI# tandard chip sets

# Le)era(e ecnm + scale in prductin t dri)e dn the cst

# 6nte(ratin ith laptps and D&s Her cst C.


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# 6ndr sel+ installed C. # 6nterpera4ilit and multiple )endr upprt

# L cst thru(h mass prductin

Out,oo+

Sel *&stall

!<


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WiM$%


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WiM$% !+o,u3t (eatu+es

ased n 6... 0231%e>200$ tandard3

&ll 6 'etrk3

OFD;/OFD;&3 ;6;O> at C. and 3


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2!

Syste6$+3hite3tu+e


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2$

SME

*OS

Wi+eless B+oa,ba&, $ppli3atio&

ENTE"!"*SE

*NTE"NET B$;ax

C.

Wi>;ax

ase tatin

Wi>;ax

C.

Wi>;ax

C.

Wi>Fi

*OTOT

Wi>;ax

C.Wi>Fi

&ccess

int


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2%

$DS s Wi-M$%

"&t present &DL is cheaper 4ecause + hi(h C. cst +Wi>;ax e:pt3

" Wi>;ax is )er scala4le ithut much cst t the ser)ice

pr)ider" eak data rates in Wi>;ax is much hi(her

" etter KO +eatures in Wi>;ax


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WiM$%


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THANKTHANKS !!

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Broad Band Wireless Access-WiFi & WiMAX