Abstract
In the near future, road traffic information will be collected and disseminated in real time by using social media instead of fixed sensor used in current traffic information system. Social media site can serve as invaluable tools to communicate the information across a wide area. Vehicular ad hoc network (VANET) are capable to communicate with each node using wireless link, it can easily turn into an infrastructure-less self-organizing road traffic information system, where any vehicle can be participate in collection and reporting useful traffic information such as accident, road block or unexpected event. Disseminating road traffic information in VANET environment usually relies on broadcasting protocol. This paper intends to introduce a pragmatic method to disseminate road traffic information using VANET environment, mobile network and social media. The objective of this project is to disseminate real time road traffic information though mobile network to all drivers and drivers are become primary source of information.
Key words: VANET, Traffic information, Mobile network |
Introduction
With the fast development in ad hoc wireless communications and vehicular technology, it is foreseeable that, in the near future, there will be a paradigm shift in traffic information systems. In particular, real-time traffic data will be collected and disseminated by distributed mobile probes, Instead of fixed sensors used in the current infrastructure based systems. A distributed network of vehicles such as a vehicular ad hoc network (VANET) can easily turn into an infrastructure-less self-organizing traffic information system, where any vehicle can become a mobile sensor, participating in collecting and disseminating useful traffic information such as section travel time, flow rate, and density.
Disseminating traffic information in a VANET is a unique problem. In contrast to the unicast data typically transmitted in a network such as the Internet, the traffic information generally has a broadcast-oriented nature. In other words, the traffic information is of public interest and it usually benefits a group of users rather than a specific individual. Consequently, it is more appropriate to use a broadcasting scheme rather than a unicast routing scheme in disseminating the traffic information. The main advantage of a broadcasting scheme is that a vehicle does not need to know a destination address and a route to a specific destination. This eliminates the complexity of route discovery, address resolution, and topology |
Problem Statement
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Objective
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Methodology
System Model |
Framework |
Vehicular Ad-Hoc Network or VANET is a subform of Mobile Ad-Hoc Network or MANET that provides communication between vehicles and between vehicles with the aim of providing efficient and safe transportation. VANET is a technology that integrates the capabilities of new generation wireless networks to vehicles. VANET builds a robust Ad-Hoc network between mobile vehicles and roadside units. It is a form of MANET that establishes communication among nearby vehicles and adjacent fixed apparatus, usually described as a roadside device. VANET
can achieve effective communication between moving node by using different ad-hoc networking tools such as Wife IEEE 802.11 b/g, WiMAX IEEE 802.10, Bluetooth, IRA. |
Step by step in project development
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Technique
Mobile networks are often equated with other wireless transmission technologies, such as WLAN, Bluetooth or Trusted Wireless. The data are never transmitted directly forms the transmitter to the receiver, the data are transmitted from the mobile transmitter through the air to the nearest mobile phone tower. From there, the data are fed into the fixed network the core network of the mobile phone service provider such as celcom, digi, maxis and umobile. The service provides will route the packet data to the actual address that the packet have been set and will be arrived to the social media server twitter for example. Social media will disseminate the data to the entire user that have connection with the sender.
In packet-oriented data transmission, the data to be transmitted are divided into small packets. Each packet is given a source address and a destination address. On the way to the destination, the data packets can be transmitted over different routes. The packets can therefore arrive in a different sequence and at different times, which makes communication more complex. A great advantage of this approach is the significantly better network utilization. As soon as individual paths on the network fail or become overloaded, the transmitted packets are automatically rerouted via other paths. This allows the network to be optimally utilized.
In packet-oriented data transmission, the data to be transmitted are divided into small packets. Each packet is given a source address and a destination address. On the way to the destination, the data packets can be transmitted over different routes. The packets can therefore arrive in a different sequence and at different times, which makes communication more complex. A great advantage of this approach is the significantly better network utilization. As soon as individual paths on the network fail or become overloaded, the transmitted packets are automatically rerouted via other paths. This allows the network to be optimally utilized.
Result
Avoid the traffic, plan your journeys