VANET Simulation
-
Upload
sujesh-p-lal -
Category
Documents
-
view
41 -
download
4
description
Transcript of VANET Simulation
![Page 1: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/1.jpg)
Realistic Mobility Models for Vehicular Ad hoc Network (VANET) Simulations
Sujesh P LalSchool of Computer Science
VIT University,2007
Guide: Prof H. R. Vishwakarma 01.07.2009 [email protected]
![Page 2: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/2.jpg)
Outline
•Introduction
•The Architecture
•Performance Evaluation
•Conclusions
1/19
![Page 3: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/3.jpg)
Introduction
• VANET – Vehicular Ad Hoc Network.
• Provides ▫ communications among nearby vehicles, and nearby
fixed equipment.▫ traffic information.▫safety and comfort for passengers.▫ multimedia and internet connectivity facilities for
passengers.▫ A facility for automatic payment for parking lots and
toll collection
2/19
![Page 4: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/4.jpg)
Intro…
•Multi-hop data delivery through VANET is complicated by the fact that vehicular networks are highly mobile and frequently disconnected.
•Existing data delivery schemes either pose too much control or no control at all on mobility, and hence not suitable for vehicular networks.
•Most research in VANET relies on simulations for evaluation.
![Page 5: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/5.jpg)
Intro…
•Realistic mobility models▫MOVE ▫SUMO
•Why Realistic mobility models?▫Prohibitive cost of deploying and
implementing such a system.▫Easy to test and evaluate network
protocols.▫Provides generic simulation scenarios.
![Page 6: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/6.jpg)
MOVE•MOVE - MObility model generator for
VEhicular networks.•Provides
▫An environment to quickly pinpoint incorrect details
▫Manage details overhead.•Allows users to rapidly generate realistic
mobility models for VANET Simulation•MOVE is built on top of an open source
micro traffic simulator SUMO
![Page 7: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/7.jpg)
MOVE…
•Provides
▫A facility to conveniently incorporate realistic road maps
▫GUI▫Generates realistic simulation scenarios
with out writing simulation scripts
![Page 8: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/8.jpg)
Architecture of MOVE
![Page 9: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/9.jpg)
MOVE - features
•Implemented in JAVA•Runs on SUMO
•Main components▫Map editor▫Vehicle movement editor
![Page 10: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/10.jpg)
EVALUATION
•Factors that directly affect VANET performance▫Node location▫Density▫Direction▫Unexpected events like accidents▫Road topology
![Page 11: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/11.jpg)
Evaluation…
•CASE STUDIES
▫Existence of traffic lights▫Driver route choice▫Overtaking behavior
![Page 12: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/12.jpg)
The VADD Model•A vehicle knows its location by GPS device , and
The packet delivery information such as source id, source location, packet generate time, destination location, expiration time, etc.
•The most important issue is to select a forwarding path with the smallest packet delivery delay.
•Although geographical forwarding approaches such as GPSR which always chooses the next
hop closer to the destination, it may not be suitable for sparsely connected vehicular networks.
3/19
![Page 13: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/13.jpg)
Performance Evaluation
15/19
![Page 14: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/14.jpg)
A snapshot of the simulation setup area
16/19
![Page 15: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/15.jpg)
Conclusions• Different from existing carry and forward solutions,
we make use of the predicable vehicle mobility, which is limited by the traffic pattern and road layout.
• MOVE allows users to quickly generate realistic model for vehicular network simulations.
• The details of a mobility model such as existence of traffic lights, driver route choice, and car overtaking behavior can have a significant impact on the simulation results.
• As future work, we will consider using vehicles from nearby road, although this will be more complex.
19/19
![Page 16: VANET Simulation](https://reader033.fdocuments.net/reader033/viewer/2022061116/5466a8e3b4af9fce288b47a7/html5/thumbnails/16.jpg)
Thanks…..