International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 04 Issue: 07 | July -2017
p-ISSN: 2395-0072
www.irjet.net
A survey paper on “Optimal Solution on Vehicular Adhoc Network for Congestion Control” Anand Raj Jain1, Krishna Kumar Joshi2 1Student,
Dept. of Computer Science and Engineering, MPCT college, Madhya Pradesh, India Dept. of Computer Science and Engineering, MPCT college, Madhya Pradesh, India ---------------------------------------------------------------------***--------------------------------------------------------------------2Professor,
Abstract— VANET (Vehicular Ad-hoc Network) is a developing new innovation with some extraordinary qualities that makes it unique in relation to other specially appointed system. Where Vehicles can communicate Wirelessly via V2V and V2I . The IEEE 802.11p incorporates correspondence between vehicles (V2V) and amongst vehicle and roadside framework (V2I). VANET give the correspondence system to dispersal of security basic message, for example, signals and crisis messages. Innovative inclusion expanding number of remote gadgets which likewise makes more clog in the remote condition and extraordinarily impact on the throughput, builds high-blunder rate, long dormancy and information misfortune in congested condition which may prompts significant vehicle mishaps. In this Paper we will discuss the current and upcoming solutions to control Congestion in VANET. We also investigate order of various Ad Hoc routing protocols and their different routing techniques.
For this reason, nowadays the automotive industry and governments invest many resources to increase road safety and traffic efficiency, as well as to reduce the impact of transportation on the environment. One of the most promising areas of research is the study of the communications among vehicles and road-side units, or more specifically the Vehicular Ad-hoc Networks (VANETs). This kind of networks are self-configuring networks composed of a collection of vehicles and elements of roadside infrastructure connected with each other without requiring an underlying infrastructure, sending and receiving information and warnings about the current traffic situation. To achieve the efficiency in transportation with the help of vehicular communication, our approach is based on following points. 1. Data packets are generated and broadcasted by affected vehicle itself which contains decision message.
Key Words — VANET, Congestion Control 1.INTRODUCTION
2. Based on decision vehicles adapt the driving behavior and helps in controlling congestion.
Driving means changing area continually. This implies a consistent interest for data on the present area and particularly for information on the encompassing movement, courses and a great deal more. There are many number of vehicles run on the road. Due to them people solve their problems soon and achieve their target but they ignore the one thing which increase day by day rapidly that is “Congestion of Vehicles” & because of that congestion “ the loss of life and money”.
3. Roadside infrastructure monitors the traffic and if traffic is above threshold value it broadcasts the messages. In proposed technique the data packets will be generated in case of event occurrence only. This further reduces the packet flooding problem of broadcasting as periodically data packets are not transmitted. Data packets are broadcasted to all neighbors in reception range and receiving vehicles will rebroadcast the data packet thus receiving vehicle will be responsible for forwarding the message along to the rest of the vehicles. Roadside units are continuously monitoring the traffic and if the traffic is above predetermined threshold value they will broadcast control messages, ex: Reduce the speed. The previous studies have focused on detection of traffic congestion. Mr. Fernando Terroso have proposed a cooperative approach to traffic congestion detection with complex event processing and VANET (Fernando TerrosoSáenz, 2012). Our proposed system focuses on traffic congestion control.
1.1 Congestion of Vehicles As the number of vehicles will increases on the road with the current constant speed then that day is near when foot passenger will reach their target soon compare to vehicle holder. When many numbers of vehicle are gather at signal or any jam (due to any accident or any other reason) then the congestion occur. But the question is how this number of vehicle gathers at the place and increases the capacity of congestion. The answer is “ when the accident occur there are very few numbers of vehicle but the other vehicle holder who have no information about the condition are choose that way and increases the gathering of vehicles on road & this all process take the result “ Congestion of Vehicles”.
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1.2 Merits and demerits of Congestion of vehicles: According to the researchers and scientists there is no profit by Congestion but there is a big list of Demerits of
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