Wireless Networks

1
Wireless Networks

• Oleg Aulov - Distributed Operating Systems

2
Wireless Networks

• Wireless LAN
• Wireless MAN
• Wireless PAN

3
Wireless MAN

• WiMAX (IEEE 802.16)
• HIPERMAN (European ETSI alternative)
• iBurst 802.20 (Mobile Broadband Wireless Access)
• EV-DO
• HSDPAHSUPA (UMTS)
• Wireless BAN
• Mobitex (Blackberry)
• Canopy (Motorola)
• AX.25 - Amateur packet radio protocol

4

• Mobitex (Blackberry)
• OSI based packet switched data network developed
  in early 80s used by the police and firefighters
  and the ilitary
• Two way pagers

5

• 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.

6
Wireless BAN
7
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

8
Canopy

• Internet providers
• 2 to 40 miles PtMP, up to 124 miles PtP
• Line of Sight

9

• WiMAX
• HIPERMAN (European ETSI alternative)
• 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

10
Wireless LAN

• Wi-Fi - 802.11 a/b/g/n
• DSRC - 802.11p (Vehicular DOT network)
• Fixed Wireless Data

11
Wireless PAN (802.15)

• Bluetooth
• ZigBee
• IrDA
• Wireless USB
• Wireless HD

12
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.

13
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

14
ZigBee

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

15
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.

16
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.)