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VEHICULAR AD HOC NETWORKS



What is a VANET ?

Ad hoc network composed of vehicles
Individual nodes different from traditional wireless nodes
No power constraint
Nodes mostly mobile
Complements existing infrastructure
Extends existing infrastructure

Medium Access Control

Dedicated Short Range Communication (DSRC)
FCC regulated 5.9 GHz
10 MHz channels
1 control, 6 service
MAC similar to 802.11, i.e., CSMA/CA
OFDM used in PHY
Speeds up to 120 mph
Up to 1000 ....etc

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Abstract
The 802.11p protocol, also known as Wireless
Access for the Vehicular Environment (WAVE), has recently
gained momentum in the area of research and development.
The WAVE protocol provides enhancements to the physical
(PHY) and medium access control (MAC) layers of the existing
802.11 wireless standards. These enhancements are required to
support the Intelligent Transportation Systems (ITS) initiatives
of the US Department of Transportation regarding vehicle-tovehicle,
vehicle-to-infrastructure, and infrastructure-to-veh ....etc

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Please, can somebody help me with a detailed material or information on the above topic; Reduction of Network Density For Wireless Ad-Hoc Network ....etc

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http://seminarsprojects.net/Thread-vehicular-ad-hoc-networks-vanets-status-results-and-challenges ....etc

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Abstract
The existing authentication protocols to securevehicular
ad hoc networks (VANETs) raise challenges such as certificate
distribution and revocation, avoidance of computation and
communication bottlenecks, and reduction of the strong reliance
on tamper-proof devices. This paper efficiently cope with these
challenges with a decentralized group authentication protocol
in the sense that the group is maintained by each RSU rather
than by a centralized authority as in most existing protocols
employing group signatures. In our ....etc

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ABSTRACT

VANETs (Vehicular Ad hoc Networks) are highly mobile wireless ad hoc networks and will play an important role in public safety communications and commercial applications. Routing of data in VANETs is a challenging task due to rapidly changing topology and high speed mobility of vehicles. Position based routing protocols are becoming popular due to advancement and availability of GPS devices. One of the critical issues of VANETs are frequent path disruptions caused by high speed mobility of vehicle t ....etc

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Prepared by:
Sherali Zeadally
Ray Hunt
Yuh-Shyan Chen
Angela Irwin
Aamir Hassan


Abstract
Recent advances in hardware, software, and communication technologies are enabling the design and implementation of a whole range of different types of networks that are being deployed in various environments. One such network that has received a lot of interest in the last couple of years is the Vehicular Ad-Hoc Network (VANET). VANET has become an active area of research, standardization, and development because it has ....etc

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To get full information or details of vehicular ad hoc networks please have a look on the pages

http://seminarsprojects.net/Thread-vehicular-ad-hoc-networks

http://seminarsprojects.net/Thread-vehicular-ad-hoc-networks-vanets-status-results-and-challenges

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Network Access Control for Mobile Ad Hoc Network
Pan Wang
North Carolina State University
Outline
Background
Problem statement
Related work
Proposed scheme
Key Synchronization
Packet Retransmission
Analysis, simulation and field test
Summary
Background
Mobile Ad Hoc Network (MANET)
A MANET consists of mobile platforms (e.g., a router with multiple hosts and wireless communications devices), which are free to move about arbitrarily. -- IETF RFC2501
Characteristics of MANET
No pre-determined in ....etc

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