Wireless WorldWireless World

Where the cord is cut, but we are Where the cord is cut, but we are still connected.still connected.

Wireless WorldWireless World

Freedom to moveFreedom to move

3 types of Wireless Technology3 types of Wireless Technology WPAN - BluetoothWPAN - Bluetooth WLANWLAN - Wireless Ethernet - Wireless Ethernet WWAN - 3G TechnologiesWWAN - 3G Technologies

Comparison TableComparison Table

Technology Category Range Bandwidth Applications

Bluetooth WPAN 10cm – 10m 57.6 kbps - 723.2 kbps

Cellphones, PDAs, Laptops

Wireless Ethernet

WLAN 1 ft. – 500 ft. 1 Mbps – 11 Mbps

Laptops, Homes, Offices

3G Cellular WWAN Unlimited > 2 Mbps Cellphones, PDAs

BluetoothBluetooth

Small, portable, uses few resourcesSmall, portable, uses few resources

Supports multiple connectionsSupports multiple connections

StandardizedStandardized

BluetoothBluetooth

BandwidthBandwidth Asynchronous – 723.2 kbps in either directionAsynchronous – 723.2 kbps in either direction Synchronous – 433.9 kbpsSynchronous – 433.9 kbps

RangeRange 10 cm – 10 m10 cm – 10 m Can be extended to 100 mCan be extended to 100 m

Supports voice transmissionSupports voice transmission

Bluetooth CompaniesBluetooth Companies

ManufacturersManufacturers Atmel Corp.Atmel Corp. LucentLucent Cambridge Silicon RadioCambridge Silicon Radio

Users – Bluetooth Special Interest GroupUsers – Bluetooth Special Interest Group EricssonEricsson IntelIntel ToshibaToshiba NokiaNokia IBMIBM

Bluetooth ApplicationsBluetooth Applications

Telephone (Cordless, Wireless, Other)Telephone (Cordless, Wireless, Other)Headsets Headsets Computers and Laptops Computers and Laptops Computer Peripherals (Keyboard, Mouse, Computer Peripherals (Keyboard, Mouse, PCMCIA cards, USB Dongles, other) PCMCIA cards, USB Dongles, other) LAN PeripheralsLAN PeripheralsPDAsPDAsDigital Cameras Digital Cameras

Bluetooth Future UsesBluetooth Future Uses

Wireless VerificationsWireless Verifications Hotel check-ins and door locksHotel check-ins and door locks Airport passageAirport passage E-paymentsE-payments

Personal NetworksPersonal Networks Connect phone, computer, PDA, and printerConnect phone, computer, PDA, and printer Other digital devicesOther digital devices

Wireless EthernetWireless Ethernet

Standardized – IEEE 802.11bStandardized – IEEE 802.11b

Mimics Regular NetworkMimics Regular Network Star pattern – instead of hub, a WAPStar pattern – instead of hub, a WAP Direct connection – ad hoc modeDirect connection – ad hoc mode

11 Mbps11 Mbps

Wireless Ethernet Cont.Wireless Ethernet Cont.

Mostly indoorsMostly indoors 100 ft. – 500 ft.100 ft. – 500 ft.

Campus WLANsCampus WLANs OutdoorsOutdoors

Wireless LAN-to-LAN BridgesWireless LAN-to-LAN Bridges 25 miles25 miles

Wireless Ethernet SecurityWireless Ethernet Security

Broadcast Radio wavesBroadcast Radio waves

Security Concerns:Security Concerns:1)1) Squelching Internet AccessSquelching Internet Access

2)2) Data SniffingData Sniffing

Wireless Security SolutionsWireless Security Solutions

Wired Equivalent Privacy (WEP) Wired Equivalent Privacy (WEP) algorithmsalgorithms

Keys are not transmitted.Keys are not transmitted.

Encrypted Data PacketsEncrypted Data Packets

Wireless Ethernet - CompaniesWireless Ethernet - Companies

LucentLucentCiscoCiscoMicrosoftMicrosoftLinksysLinksysNetgearNetgearCompaqCompaqD-LinkD-LinkSonySony3Com3Com

SMCSMCIntelIntelXircomXircomOrinocoOrinocoAlvarionAlvarionProximProximAppleAppleViewSonicViewSonicSymbolSymbol

Wireless Ethernet FutureWireless Ethernet Future

IEEE 802.11aIEEE 802.11a 22 Mbps22 Mbps

Other usesOther uses Wireless Tablet MonitorsWireless Tablet Monitors PrintersPrinters

3G Technologies3G Technologies

Universal Mobile Telecommunications Universal Mobile Telecommunications System (UMTS)System (UMTS)

GSM (GSM (GGlobal lobal SSystem for ystem for MMobile obile Communications) StandardizedCommunications) Standardized

Third GenerationThird Generation

3G Technologies3G Technologies

BandwidthBandwidth 2 Mbps2 Mbps

RangeRange Unlimited through use of satellitesUnlimited through use of satellites

4 Frequencies – Quad-band4 Frequencies – Quad-band 900MHz, 1800MHz, 1900MHz, 2200MHz900MHz, 1800MHz, 1900MHz, 2200MHz

3G Technologies3G Technologies

Multimedia ApplicationsMultimedia ApplicationsAlways OnAlways On E-mail, Personal OrganizerE-mail, Personal Organizer

InformationInformation Web surfing, Corporate IntranetWeb surfing, Corporate Intranet

PurchasingPurchasing Online shopping and bankingOnline shopping and banking

3G Companies3G Companies

VerizonVerizon CDMACDMA

Cingular WirelessCingular Wireless GSM, TDMA, 3G GSM, TDMA, 3G

EDGEEDGE

AT&T WirelessAT&T Wireless TDMATDMA

NextelNextel iDENiDEN

Sprint PCSSprint PCS CDMACDMA

VoiceStreamVoiceStream GSM, GPRSGSM, GPRS

Kyocera WirelessKyocera Wireless Released 2 phones Released 2 phones

using CDMA2000 1xusing CDMA2000 1x

3G Technologies3G Technologies

Lucent plans to roll out 3G services by end Lucent plans to roll out 3G services by end of 2002of 2002

Frequency licensing issues to be resolvedFrequency licensing issues to be resolved

ConclusionConclusion

2004 – 1 billion wireless devices2004 – 1 billion wireless devices

Out-of-office productivityOut-of-office productivity

Mobile officeMobile office

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