User Requirements Model for Vehicular Ad hoc Network (VANET) Applications

1. User Requirements Model for Vehicular Ad hoc Network (VANET) Applications VANET Security Research Group (VSRG) Dr I.A.Sumra

2. Introduction  Problems in Current Traffic System(TS)  Road Accident  Traffic Congestion Fig.1 Road Accident Fig.2 Traffic Congestion 2

3. Vehicular Ad hoc Network (VANET)  Vehicular ad-hoc network is a special kind of network in which nodes (Vehicles) can communicate with each other on the road and with its Infrastructure.  Benefits of VANET to users  Avoids Road Accidents  Reduces Traffic Congestion  Improves Entertainment V2V V2I Road Side Unit (RSU) Server (Traffic Monitoring) Server (Location Based Service) 3 Fig3. Basic VANET Architecture

4. VANET Architecture 4

5. Motivation for VANET VANET Motivation Increase safety Traffic Optimization Safe Human lives Save Time Save Fuel Fig4. VANET Motivation 5

6. Dedicated Short Range Communication (DSRC)  Federal Communication Commission (FCC) allocate frequency band and purpose of this is to provide wireless communication between vehicle to vehicle (V2I) and vehicle to Infrastructure (V2I).  DSRC provides multiple channels and its transmission ranges from 5.850 to 5.925 GHz.  DSRC provides seven channels (safety and non safety channels) and each channel range is 10 MHz. 6

7. Dedicated Short Range Communication (DSRC) Fig5. DSRC and its safety and non safety Channels 7

8. Proposed Model Proposed model is consist of three layers. First layer describe the basic users’ requirements which are Security, privacy and trust. Second and third layers are consisting of the safety and non safety applications of the VANET and these two layers meet first layer requirement.    Fig.6 User Requirements Model 8

9. User Requirement and VANET Applications Safety Application Non Safety Application Trust Privacy VANET Security 9

10. Security, Privacy and Trust(SPT)  Security  Security is an important user’s requirement in VANET as if VANET is not secure from attackers then these applications may not achieve the primary purpose i.e. safer human lives. VANET applications require the integrity because life critical information should not be changed by any attacker. Vehicle wants to access the other vehicles in the network or access the infrastructure, then network is not available to user due to some kind of fault or any kind of attack (denial of service). Privacy  Privacy in VANET is to secure the user’s personal data and their location. When user sends any message to other vehicles, it should not affect their privacy. Users’ need privacy and may not allow seeing their personal data and their locations. Users sensitive information can not open to unauthorized persons. Name of user / driver License plate of the vehicle Speed of the vehicle Position / Location Route for traveling Internal car sensor data Trust  Trust is the key element of security system. When users receive any message from other nodes or from infrastructure it should be trusted because user reacts according to the message. The attackers change the contents of the message and break the trust between the vehicles.           10

11. Accident at location Z! Road is CLEAR!!!! Security Fig.7 Attacker alters the message TOC RSU Fig.8 Jam Communication Channel between V2V and V2I 11

12. Safety Applications  Active Safety Applications  Active safety application can help to prevent accidents and work as pre crash applications.  Active safety applications are based on control functions and the purpose of this to exchange the sensor data or status information between the vehicle to vehicle (V2V) and vehicles to infrastructure (V2I).  The goal of sending this kind of information to users is to react accordingly and avoid the accident.  Passive Safety Applications Passive safety applications work inside the vehicle and protect the passengers against injury in the event of accident. Safety belt and air bags are the examples of passive safety applications. Passive safety applications can not provide help to avoid accidents.    Work Zone Work Zone Warning:!!! Warning:!!! Work in Progress Plz!use Alt. route Fig.9 Safety Application 12

13. Non Safety Applications Convenience Applications  Road Status Services (RSS)  Parking Availability Services (PAS)  Road is CLEAR!!!! Fig.10 Road Status Services (RSS) Shopping MALL ( TESCO ) Parking Slot RSU Parking Slot Available!!! Available!!! Fig.11 Non Safety Application 13

14. Non Safety Applications  Comfort Applications Toll Collection Services (TCS) Personal and Diagnostics Services (PDS) Services offering Messages (SOM) Map Download Services (MDS) Entertainment Service (ES)      14

15. Fig.12 Summary of all Applications 15

16. Conclusion  Due to high death rate and congestion on roads, researchers and car manufacturing industries want to find some possible solutions by using of VANET technology.  VANET potential applications directly focus on user’s life on the road by sending some safety messages. In propose model it is explained the relationship between the user requirements and VANET safety and non safety applications are meets these requirements.  In future these VANET applications will improve the traffic system and reduces the death rate in road accidents. 16

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18.  Send email: irshadsomra88@gmail.com  Please download complete paper  IEEEE website  ResearchGate  Video Available on given link:-  https://www.youtube.com/watch?v=aNQEF9qkpfM 18