1 / 20

Wireless World

Wireless World. Where the cord is cut, but we are still connected. Wireless World. Freedom to move 3 types of Wireless Technology WPAN - Bluetooth WLAN - Wireless Ethernet WWAN - 3G Technologies. Comparison Table. Bluetooth. Small, portable, uses few resources

craig-mcgee
Télécharger la présentation

Wireless World

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

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

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

  3. Comparison Table

  4. Bluetooth • Small, portable, uses few resources • Supports multiple connections • Standardized

  5. Bluetooth • Bandwidth • Asynchronous – 723.2 kbps in either direction • Synchronous – 433.9 kbps • Range • 10 cm – 10 m • Can be extended to 100 m • Supports voice transmission

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

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

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

  9. Wireless Ethernet • Standardized – IEEE 802.11b • Mimics Regular Network • Star pattern – instead of hub, a WAP • Direct connection – ad hoc mode • 11 Mbps

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

  11. Wireless Ethernet Security • Broadcast Radio waves • Security Concerns: • Squelching Internet Access • Data Sniffing

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

  13. Lucent Cisco Microsoft Linksys Netgear Compaq D-Link Sony 3Com SMC Intel Xircom Orinoco Alvarion Proxim Apple ViewSonic Symbol Wireless Ethernet - Companies

  14. Wireless Ethernet Future • IEEE 802.11a • 22 Mbps • Other uses • Wireless Tablet Monitors • Printers

  15. 3G Technologies • Universal Mobile Telecommunications System (UMTS) • GSM (Global System for Mobile Communications) Standardized • Third Generation

  16. 3G Technologies • Bandwidth • 2 Mbps • Range • Unlimited through use of satellites • 4 Frequencies – Quad-band • 900MHz, 1800MHz, 1900MHz, 2200MHz

  17. 3G Technologies • Multimedia Applications • Always On • E-mail, Personal Organizer • Information • Web surfing, Corporate Intranet • Purchasing • Online shopping and banking

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

  19. 3G Technologies • Lucent plans to roll out 3G services by end of 2002 • Frequency licensing issues to be resolved

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

More Related