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

Wireless World Freedom to move 3 types of Wireless Technology WPAN - Bluetooth WPAN - Bluetooth WLAN - Wireless Ethernet WLAN - Wireless Ethernet WWAN - 3G Technologies WWAN - 3G Technologies

Comparison Table TechnologyCategoryRangeBandwidthApplications BluetoothWPAN10cm – 10m57.6 kbps kbps Cellphones, PDAs, Laptops Wireless Ethernet WLAN1 ft. – 500 ft.1 Mbps – 11 Mbps Laptops, Homes, Offices 3G CellularWWANUnlimited> 2 MbpsCellphones, PDAs

Bluetooth Small, portable, uses few resources Supports multiple connections Standardized

Bluetooth Bandwidth Asynchronous – kbps in either direction Asynchronous – kbps in either direction Synchronous – kbps Synchronous – kbpsRange 10 cm – 10 m 10 cm – 10 m Can be extended to 100 m Can be extended to 100 m Supports voice transmission

Bluetooth Companies Manufacturers Atmel Corp. Atmel Corp. Lucent Lucent Cambridge Silicon Radio Cambridge Silicon Radio Users – Bluetooth Special Interest Group Ericsson Ericsson Intel Intel Toshiba Toshiba Nokia Nokia IBM IBM

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

Bluetooth Future Uses Wireless Verifications Hotel check-ins and door locks Hotel check-ins and door locks Airport passage Airport passage E-payments E-payments Personal Networks Connect phone, computer, PDA, and printer Connect phone, computer, PDA, and printer Other digital devices Other digital devices

Wireless Ethernet Standardized – IEEE b Mimics Regular Network Star pattern – instead of hub, a WAP Star pattern – instead of hub, a WAP Direct connection – ad hoc mode Direct connection – ad hoc mode 11 Mbps

Wireless Ethernet Cont. Mostly indoors 100 ft. – 500 ft. 100 ft. – 500 ft. Campus WLANs Outdoors Outdoors Wireless LAN-to-LAN Bridges 25 miles 25 miles

Wireless Ethernet Security Broadcast Radio waves Security Concerns: 1) Squelching Internet Access 2) Data Sniffing

Wireless Security Solutions Wired Equivalent Privacy (WEP) algorithms Keys are not transmitted. Encrypted Data Packets

Wireless Ethernet - Companies LucentCiscoMicrosoftLinksysNetgearCompaqD-LinkSony3ComSMCIntelXircomOrinocoAlvarionProximAppleViewSonicSymbol

Wireless Ethernet Future IEEE a 22 Mbps 22 Mbps Other uses Wireless Tablet Monitors Wireless Tablet Monitors Printers Printers

3G Technologies Universal Mobile Telecommunications System (UMTS) GSM (Global System for Mobile Communications) Standardized Third Generation

3G Technologies Bandwidth 2 Mbps 2 MbpsRange Unlimited through use of satellites Unlimited through use of satellites 4 Frequencies – Quad-band 900MHz, 1800MHz, 1900MHz, 2200MHz 900MHz, 1800MHz, 1900MHz, 2200MHz

3G Technologies Multimedia Applications Always On , Personal Organizer , Personal OrganizerInformation Web surfing, Corporate Intranet Web surfing, Corporate IntranetPurchasing Online shopping and banking Online shopping and banking

3G Companies Verizon CDMA CDMA Cingular Wireless GSM, TDMA, 3G EDGE GSM, TDMA, 3G EDGE AT&T Wireless TDMA TDMANextel iDEN iDEN Sprint PCS CDMAVoiceStream GSM, GPRS Kyocera Wireless Released 2 phones using CDMA2000 1x

3G Technologies Lucent plans to roll out 3G services by end of 2002 Frequency licensing issues to be resolved

Conclusion 2004 – 1 billion wireless devices Out-of-office productivity Mobile office Next Defining Technology