22-09-2016, 12:03 PM
SCSA: Secure Communication Scheme for Preserving Privacy and Message mining through VANET
1455643958-755582163SCSA.docx (Size: 244.42 KB / Downloads: 4)
ABSTRACT
This work SCSA talks about the privacy preservation for the drivers. Traditional approaches like global positioning system mainly speaks about the shortest path and does not care about the live road condition. The existing protocol like traffic message channel uses Fm radio to detect the shortest path and the current live condition of the road. The major drawback in this system is the information is gathered by the malicious users and they send wrong information to the sink node. Vehicular
networks have been attracting increasing attention recently from both the industry and research communities. Most of the existing works mainly focus on designing. In our proposed model rather than microscopic models which finds vehicular distribution and performance we mine messages from vehicular area network. Every individual
vehicle should collect and update its information time by time and furnish those messages to Dynamic database effectively. It can be used during emergency situations by mining required data from database.
The SCSA algorithm uses the Trusted Authority and Road Side Unit and the On Board Unit for communication. The users in the network can enjoy the safe and secure travelling through SCSA algorithm. The driver sends query to the Trusted Authority before starting the journey. The TA only knows whether the user is a registered person in the network or not. And the TA sends the correct information to the Road Side Unit and the information is received in the Road Side Unit is transferred to the On Board Unit which is fixed in the user’s vehicle.
1.INTRODUCTION
A vehicular ad hoc network (VANET) uses vehicles as mobile nodes in a MANET to create a mobile network. A VANET turns every participating vehicle into a wireless router or node, allowing vehicles approximately 100 to 300 metres of each other to connect and, in turn,create a network with a wide range. As cars fall out of the signal range and drop out of the network, other cars can join in, connecting
vehicles to one another so that a mobile Internet is created. It is estimated that the first systems that will integrate this technology are police and fire vehicles to communicate with each other for safety purposes.
Intelligent vehicular ad-hoc network
(InVANET) is another term for promoting
technologies such as Wi-Fi IEEE 802.11p, WAVE IEEE 1609, WiMAX IEEE
802.16, Bluetooth, IRA and ZigBee.
Vehicular ad hoc networks are expected to implement wireless technologies such as dedicated short-range communications (DSRC) which is a type of Wi-Fi. Other candidate wireless technologies are cellular, satellite, and WiMAX. Vehicular ad hoc networks can be viewed as component of the intelligent transportation systems (ITS).
As promoted in ITS, vehicles communicate with each other via inter- vehicle communication (IVC) as well as with roadside base stations via roadside-to- vehicle communication (RVC).
TERMS AND TERMINOLOGIES
The VANET is made up of several
elements: On Board Unit,Road Side Unit, Trusted Authority.
On Board Unit (OBU):
On Board Unit is a system that collects driving information, for drivers who drive safely (i.e. who obey traffic rules and who adapt their driving behaviour to the actual road/weather conditions).
To make the On Board Unit attractive to the drivers, additional functionality can be added. For instance traffic information about road conditions ahead, or alerting emergency services in case of an accident. Road Side Unit(RSU):
Road Side Unit is a computing device located on the roadside that provides connectivity support to passing vehicles. The RSU gives the route information as requested by the client. It also inform the traffic control center to adjust traffic lights for avoiding possible traffic congestion.
Trusted Authority(TA):
Trusted Authority is used to obtain the users’ real identity. The TA is responsible for key generation. The TA hides the real identity of the user from RSU and ensures maximum safety for the driver. But TA can reveal the pseudo identity of the driver when needed.
SERVICES
The term services in VANET are the
concept of providing a safe, secure, trusted and effective routing to the drivers. The services include
• Safety
• Traffic management
• Driver assistance systems
• Recognition of collision scenarios and obstacles
• To protect the privacy of the drivers.
• To avoid the time complexity
Safety
Providing safety is the primary
objective of VANET. Vehicles who discover an imminent danger such as an obstacle inform others. Electronic sensors in each car can detect abrupt changes in path or speed and send an appropriate message to neighbors. Vehicles can notify close vehicles of the direction they are taking so the drivers can make better decisions.
Traffic management
Traffic management is utilized by
authorities to ease traffic flow and provide a real time response to congestions. Authorities may change traffic rules according to a specific situation such as hot pursuits and bad weather. Applications include:
Variable speed limits
• Adaptable traffic lights
• Automated traffic intersection control
• Accommodating ambulances, fire trucks, and police cars.
Driver assistance systems
Roadside units can provide drivers
with information which help them in controlling the vehicle. These may be conventional vehicles driven by humans or they could even be autonomous vehicles. Even in the absence of RSUs, small transmitters may be able to issue warnings such as bridge or tunnel height or gate width:
Parking a vehicle
• Cruise control
• Lane keeping assistance
• Road sign recognition
Recognition of collision scenarios and obstacles
• Front to rear and front to front collisions are identified on straight
and curved roads.
• Algorithm runs and calculates the expected trajectory of the vehicle and relative distances and velocities of surrounding vehicles.
• Based on the analysed information, it sends information to driver about the safest path that can be taken.