InVANET(Intelligent Vehicular Ad Hoc Network

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InVANET(Intelligent Vehicular Ad Hoc Network

• Sandesh Pandey, Ramesh Basukala and Sumit Joshi

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Introduction
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Introduction

• InVANET is an
• Intelligent Vehicular Ad Hoc Networking
• uses WiFi IEEE 802.11 and
• WiMAX IEEE 802.16
• for easy and effective communication between
  vehicles with dynamic mobility.

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Introduction

• VANET, is a form of Mobile ad-hoc network,
• to provide communications among nearby vehicles
  and
• between vehicles and nearby fixed equipment,
  usually described as roadside equipment.
• In intelligent vehicular ad hoc network, rather
  than moving at random as in MANET vehicles tend
  to move in an organized fashion.

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Introduction

• Providing
• vehicle-to-vehicle and
• vehicle-to-roadside communication
• can considerably improve traffic safety and
  comfort of driving and traveling.

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Introduction

• Each vehicle equipped with VANET device will be a
  node in the Ad-Hoc network and can receive and
  relay others messages through the wireless
  network.
• Each node in the ah-hoc network functions as the
  router to another node.
• The terminals act like repeaters that relay the
  information packets flying back and forth about
  the ad-hoc network from one mobile terminal to
  the next.

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Mobile IPv6

• Mobile IPv6 is a widely accepted solution
• to provide session continuity and
• reachability to the Internet for mobile nodes.

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Mobile IPv6

• Mobile IPv6 proxy-based architecture
• selects the optimal communication mode
• direct in-vehicle,
• vehicle-to-vehicle,
• and vehicle-to-roadside communication
• provides dynamic switching between
• vehicle-to-vehicle and
• vehicle-to-roadside communication mode

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Model for InVANET
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Goal of InVANET

• The main goal of VANET is to provide safety and
  comfort for passengers.
• Communication between vehicles can be used
• to realize driver support and active safety
  services like
• collision warning,
• up-to-date traffic and
• weather information or
• active navigation systems.

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Examples

• There are also
• multimedia and
• internet connectivity facilities
• for passengers, all provided within the
  wireless coverage of each car.
• Automatic payment for parking lots and toll
  collection are other examples of possibilities
  inside VANET.

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Characteristics

• Lack of pre-configuration, meaning network
  configuration and management must be automatic
  and dynamic.
• Node mobility, resulting in constantly changing
  network topologies.
• Multi-hop routing.

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Characteristics

• Resource limited devices, e.g. laptops, PDAs and
  mobile phones have power and CPU processing
  constraints.
• Resource limited wireless communications, e.g.
  reduced to 10's of kilobits per second by the
  fact that many nodes must share the radio medium.
• Potentially large networks, e.g. a network of
  sensors may comprise thousands or even tens of
  thousands of mobile nodes

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Advantages

• Inter-vehicular communication services such as
  intersection collision warning, local danger
  warning, and the de-central dissemination of
  real-time traffic flow information.
• The mobile terminals not only provide a function
  for information transmission and reception but
  also provide a function for information relay
  i.e. provides the function of router.
• Ad-hoc network provides anytime, anywhere access
  environment.

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Challenges

• Scability of protocol
• Introduction of Security
• High-Speed Real-Time Communication

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Scenario
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Scenario

• Several actors involved in inter vehicular ad
  hoc network are
• The drivers, which benefit from the system by
  receiving warning messages and route
  recommendations.
• Road operators, who receive traffic data and are
  therefore enabled to control the traffic in a
  more efficient way.
• Hotspot and Internet service providers, who can
  attach vehicle communication systems e.g. at gas
  stations.

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Scenario Safety use cases

• Cooperative Forward Collision Warning
• Pre-Crash Sensing/Warning
• Hazardous Location V2V Notification

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Scenario Traffic Efficiency use cases

• Enhanced Route Guidance and Navigation
• Green Light Optimal Speed Advisory
• V2V Merging Assistance

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Scenario Infotainment and Others use cases

• Internet Access in Vehicle
• Point of Interest Notification
• Remote Diagnostics

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Technical Prerequisites and Constraints

• Anonymity and Data Security
• Effective Protected Frequency Band
• Scalability
• Mandatory Sensor Data

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Architecture

• two approaches can be taken.
• Layered Approach and
• Un-layered Approach

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Layered Approach
protocols fulfill small, well-defined tasks and
form a protocol stack
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Un-layered Approach
All application and communication protocols are
placed in one single logical block
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Research

• efficient message dissemination,
• network scalability, and
• information security mechanisms

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Conclusion

• In InVANET, vehicles can communicate with the
  roadside communication infrastructure and also
  among each other.
• A vehicle is not only information source or sink,
  but also information distributor.
• The communication services enable a wide range of
  applications, ranging from road safety and
  traffic efficiency, driving comfort and
  infotainment.

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Conclusion
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Question 1

• In Intelligent Vehicular AdHoc network (InVANET),
  vehicles are enabled to communicate among
  themselves i.e. V-2-V. It is explained that V-2-V
  enables communication for small to medium
  distances and at locations even where roadside
  access points are not available. Are we assuming
  that all the vehicles on the road will be
  equipped with communication/networking
  capabilities? If not, how realistic is InVANET?

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Question 2

• Vehicles move in certain speeds. We have roads or
  highways which have various speed limitations.
  Does InVANET impose any restriction on the speed
  of a vehicle for its smooth operation?

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Question 3

• The basic safety message spreading in a vehicular
  network consists of event warning message. But
  there are scenarios when message need to be
  delivered to specific areas example, to the end
  of a traffic jam queue so that arriving vehicles
  have the option of taking another route before
  getting stuck. How can the vehicular network
  support the secure routing?
• any two nodes that wish to communicate securely
  can simply establish a priori a shared secret, to
  be used by their routing protocol modules.

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Question 4

• Is the network expandable? How did the cars in
  the network and the terminals maintain the flow
  control in the network?