EE 400 Term Project

1
EE 400 Term Project

• A Survey of Vehicular Networks.
• Done by
• Saif AL Mustanier
  ID2264840
• Ali AL-Yami
  ID 245786

2
References

• http//ieeexplore.ieee.org/stamp/stamp.jsp?arnumbe
  r
• http//www.ieee802.org/11/PARs/index.htmlActive
• Denis Bakin Evolution of 802.11 (physical layer)
• Benjamin E. Henty A Brief Tutorial on the PHY
  and MAC layers of the IEEE 802.11b Standard July
  12, 2001

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Vehicular Networks (VANET)

• OUTLINE
• Definition
• Application of VANET
• Physical layer
• Data link layer
• Network layer
• Transport layer

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Definition of VANET

• A Vehicular Ad-Hoc Network, or VANET, is a form
  of mobile ad hoc network, to provide
  communications among nearby vehicles and between
  vehicles and nearest fixed equipment, usually
  described as roadside equipment.
• VANET using different ad-hoc networking
  technologies such as WiFi IEEE 802.11 b/g, WiMAX
  IEEE 802.16, Bluetooth, IRA, ZigBee for easy,
  accurate, effective and simple communication
  between vehicles on dynamic mobility
• 
  Source 1

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Application of VANET

• Comfort for the passenger.
• Helping Driver.
• Collision Avoidance.

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Architecture of the VANET

• Type of the used layer

• layered approach
• un-layered approach

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The Physical Layer

• 1. The Physical Layer Convergence Protocol
  (PLCP)
• provides a method for mapping the MAC sublayer
  protocol data units into a framing format
  suitable for sending and receiving data and
  management.
• 2. Physical Medium Dependent (PMD)
• The PMD interacts directly with the physical
  medium and performs the most basic bit
  transmission functions of the network. It is
  mainly responsible for encoding and modulation

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Data link layer

• Aloha
• CSMA
• CSMA is an improved Aloha protocol where the
  transmitter starts by sensing the channel before
  the transmission is initiated and only transmits
  if the channel is free

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The Network layer

• The design of effective vehicular communications
  poses a series of technical challenges.
• multipath routing protocols
• vehicles are grouped according to their moving
  directions.
• To avoid link ruptures.

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Transport Layer

• Vehicles are equipped with storage and processing
  devices.
• Unfortunately, studies have shown that TCP
  performance in VANET is very poor
• many solutions have been proposed.
• TCP variants
• entirely new transport protocols developed to
  replace TCP

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Conclusion

• Definition
• Application of VANET
• Physical layer
• Data link layer
• Network layer
• Transport layer

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Thank You

• I am ready to answer your questions