Ad hoc based vehcular networking and computation

IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 05 Issue: 03 | Mar-2016, Available @ http://www.ijret.org 492
AD HOC BASED VEHCULAR NETWORKING AND COMPUTATION
Zeeshan Osmani1
, Shoaib Khan2
, Saif Khan3
, Awij Shaikh4
1, 2, 3,4
Department of Electronics & Communication Engineering, M.H, Saboo Siddik College of Engineering
Maharashtra, India
Abstract
Vehicular Ad Hoc network which is a highly wireless network has went through lot of research in the past few years. The VANETs
services are being used in many services today but because of many difficulties faced due to connectivity issues faced and low
scalability the VANETs have yet not become popular. The existing VANET routing protocols need a topology that can serve as a
framework which will help in its integration. For validating our computation we used urban city model, and generated vehicular
mobility traces from the mobility model. The traces were added to the network simulator to study the routing behaviour. To realise
the safety feature of VANETs two scenarios are added, the regular safety data streaming and the accidental scenario streaming.
The simulation results are demonstrated for the VANETs networking and computation.
Keywords: Vehicular Ad Hoc Networks (VANETs), Integration and Frame-Work.
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1. INTRODUCTION
Vehicular Ad Hoc Networks are being planned to support
various services such as route planning, traffic alert system,
etc. A lot of consideration could be given to VANETs
system and already it has gained attention research
community. In VANET system the nodes are the vehicles,
the important feature of VANET is these high mobility
nodes will not only communicate with each other but also
the road side unit also.
2. COMMUNICATION
Today the main challenges faced by VANET is the
communication issues and the Quality of service between
Vehicle to vehicle and vehicle to infrastructure.
2.1Vehicle to Vehicle Communication
The nodes which are vehicles in the VANET system
communicate with each other using various techniques
including multi-hop technique in which the packets are
hopped multiple times between the source and the
destination. First the source point and destination point are
selected, the vehicles in the path of the destination passes
the packets to the forward vehicles unless the destination is
reached. In this scenario two messages are send, timely
safety update message and the other is event driven
message. In the Safety message is for the user to follow the
safety procedures at the time of driving. The other event
driven message is to inform about any accident events or
other issues to avoid the traffic near the area affected.
Figure 1. Vehicle to Vehicle Communication
2.2Vehicle to RSU Communication
In this case the vehicles communicate with the Road Side
Unit within the range of RSU. When the nodes are travelling
along the road they exchange packets.
Figure 2.Vehile to RSU communication
3. VANET model for Intersection of Roads
It plots the intersection of road on both the stretches. It is
assumed by the model that nodes are originated at random
points with independent velocities at each point.

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MATLAB code was used to simulate this model.
Developing the code was done to exploit the fact that the
distance travelled by each node during the encounter will be
much higher as compared to the computational speed of
each location and the difference was of the order 0.ms to
10s. The nature of MATLAB code did not affect the
accuracy of the model.
Figure 3. Intersection of Roads
4. VANET MODEL FOR TWO SEPARATE
ROADS
In this model of VANET two separate roads are there and
separate nodes are travelling through the stretches. In the
MATLAB code the two nodes are travelling through their
respective roads with the same velocity. They originated at
the same time and reach their destination at the same time.
Figure 4. Two Separate Roads.
5.VANET model for RSU
In this model VANET nodes are passing through RSUs. It is
similar to handoff of mobile station from one base station to
another. The exchange of packet is carried out between RSU
unit and the nodes and there is central Switching centre
between the two roadside infrastructure Unit. The
mechanism that involve the continuous connection
maintenance over large distance in VANET system can be
studied by this model.
Figure 5. Nodes and the RSU Unit
6. VANET MODEL FORURBAN CITY
This creates an entire network of roads instead of custom
roads on a macro scale. It is modelled and used by nodes to
populate and simulate. At the time of generation of nodes its
direction is randomly chosen. The model formed by the
nodes is in rectangular format which represent a block of
house. This structure of rectangular roadway which is
occupied by nodes are generated using the in-built
MATLAB function.
This model created by using MATLAB code can be used for
studying various aspects of the VANET systems.
Figure 6. Urban City Simulation
7. PROBLEM AND DRAWBACK
The Vehicular Ad Hoc network is still not emerged as a vast
technology, it is in its research stage of development. The
connectivity problem, low scalability, large overhead are the
issues to be resolved. The traffic laws, geometrical and
geographical constraints bound the speed and direction of
the nodes. The system associated with vehicular design,
VANETs must be thoroughly tested before they are put in
real world because the consequences of failing system are
very high in VANETs. A proposed framework for VANET
can make the technology going, also the mobility and
generation topologies can serve as a tool for the
development of technology.

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8. RESULT
There are large no of simulator tools available for study of
VANET models like Fleet-Net, NHTSA and MATLAB. Of
all simulator tools MATLAB is the most widespread, widely
available and it is continuously updated. Hence we have
simulated our project on MATLAB and it provides us
unique advantages over other systems
9. CONCLUSION
The scenarios of various VANET model were simulated and
computed. These developed simulative models can be used
as a basis for further researches and tests. We expect that the
researchers will get extra ordinary result for their efforts.
REFERENCES
[1]. Maen M. Artimy, William Robertson , and William J.
Phillips, "Vehicular Ad Hoc Networks: An Emerging
Technology Toward Safe and Efficient Transportation"
[2]. Grzybek, Agata; Seredynski, Marcin ;Danoy, Grégoire
; Bouvry, Pascal , "Aspects and trends in realistic
VANET simulations", World of Wireless, Mobile and
MultimediaNetworks (WoWMoM), 2012 IEEE
International Symposium 2012
[3]. Sandeep Tayal, Malay Ranjan Tripathy, "VANET -
Challenges in selection of Vehicular Mobility Model",
2012 Second International Conference on Advanced
Computing & Communication Technologies
[4]. Marco Fiore, "Vehicular Mobility Simulation for
VANETs", Simulation Symposium, 2007. ANSS '07.
40th Annual
[5]. Rahul Mangharam et al, "GrooveSim: a topography -
accurate simulator for geographic routing in vehicular
networks", VANET '05 Proceedings of the 2nd ACM
international workshop on Vehicular ad hoc networks

Ad hoc based vehcular networking and computation

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