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Wireless Technologies in Modern Networks

Explore the realm of wireless technologies including Wi-Fi, WiMAX, DSRC, and more used in modern networks. Learn about Fixed Wireless Data, PAN, MAN, and their applications in various industries. Discover the advancements in wireless communication standards, protocols, and devices. Stay updated on the latest trends and innovations in the wireless networking domain.

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Wireless Technologies in Modern Networks

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  1. Wireless Networks Oleg Aulov - Distributed Operating Systems

  2. Wireless Networks • Wireless LAN • Wireless MAN • Wireless PAN

  3. Wireless LAN • Wi-Fi - 802.11 a/b/g/n • DSRC - 802.11p (Vehicular DOT network - dedicated short range communications) • Fixed Wireless Data

  4. Fixed Wireless Data • Fixed Wireless Data is a class of technologies used to connect two fixed locations (e.g., buildings) with a radio or other wireless link, such as laser bridge. Usually Fixed Wireless Data is part of a Wireless LAN infrastructure. The purpose of a Fixed Wireless Data link is to enable data communications between the two sites or buildings. Fixed Wireless Data links are often a cost-effective alternative to leasing fiber or installing cables between the buildings.

  5. DSRC • Dedicated Short Range Communications is a short to medium range wireless protocol specifically designed for automotive use. It offers communication between the vehicle and roadside equipment. It is a sub-set of the RFID-technology. • 5.9 GHz band (U.S.) • Emergency warning system for vehicles • Cooperative Adaptive Cruise Control • Cooperative Forward Collision Warning • Approaching emergency vehicle warning (Blue Waves)

  6. Wireless MAN • WiMAX (IEEE 802.16) - Worldwide Interoperability for Microwave Access • HIPERMAN (European ETSI alternative) • iBurst 802.20 (Mobile Broadband Wireless Access) • EV-DO • HSDPA+HSUPA (UMTS) • Mobitex (Blackberry) • Canopy (Motorola)

  7. WiMAX • standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL • AP communication goes on a random interrupt basis and we face a problem of QoS with applicaions such as VOIP • Miscnception: WiMAX will deliver 70 Mbit/s over 50 kilometers

  8. iBurst • The HC-SDMA interface operates on a similar premise as GSM or CDMA2000 for cellular phones, with hand-offs between HC-SDMA cells reportedly providing the user with a seamless wideband wireless experience even when moving at the speed of a car or train. • Use adaptive array antennas to improve bandwidth utilizaion

  9. Mobitex (Blackberry) • OSI based packet switched data network developed in early 80s used by military, police, ambulance and firefighters. • Emphasizes on reliability • Two way pagers • packet-switched, narrowband, data-only technology mainly for short burst data

  10. Canopy • Motorola technology • Internet providers • 2 to 40+ miles PtMP, up to 124 miles PtP • Line of Sight

  11. EVDO and HSDPA • EVDO up to 3.1 Mbit/s • Sprint / Vrizon • HSDPA speeds of 1.8, 3.6, 7.2 and 14.4 Mbit/s

  12. Wireless PAN (802.15) • Bluetooth • ZigBee • IrDA • Wireless USB • Wireless HD • Wireless BAN

  13. ZigBee • IEEE 802.15.4 • Smaller and cheaper then Bluetooth • Low data rate, long battery life, secure networking, longer range • Headphones, sensors, industrial control

  14. WuzzBee - Wireless USB • 480 Mbit/s at distances up to 3 meters and 110 Mbit/s at up to 10 meters • game controllers, printers, scanners, digital cameras, MP3 players, hard disks, flash drives, parallel video streams

  15. Wireless HD • standard for consumer electronics, will allow for uncompressed, digital transmission of HD video and audio signals • theoretical data rates as high as 20 Gbit/s permitting to scale to higher resolutions, color depth, and range • point-to-point, non line-of-sight (NLOS) at up to 10 meters.

  16. Wireless BAN

  17. Sources Sited • www.wikipedia.org • www.zigbee.org • www.mobitex.com • path.berkeley.edu/~dsrc/ • www.wimaxforum.org • http://www.motorolaptp.com/ • http://motorola.canopywireless.com/support/library/ • http://www.redwoodwireless.com/ • www.usb.org/developers/wusb/ • www.wirelesshd.org/

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