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Performance and Real Time Analysis of Vehicular Ad hoc Network (VANET)

Sabeghi, Milad | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 45801 (52)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Jahangir, Amir Hossein
  7. Abstract:
  8. Today road accidents take the lives of millions of people on a yearly basis through the world. Also, numerous attempts have been proposed to increase safety on the roads. Vehicular Ad hoc Network (VANET) is a subclass of mobile ad hoc networks (MANET); the main goal of which is to increase the safety and efficiency of road traffics and trips. However, like other networks, routing protocols are one of the most important parts of VANET. But, due to the unique characteristics of VANET (high mobility, short radio coverage area, etc.), the process of data dissemination is a more challenging task than other networks. Therefore, the need for efficient, reliable and safe routing protocols which can guarantee hard or firm deadlines and response times in the case of accidents and even regular data dissemination is vital for the successful operation of such infrastructures. Thereby, VANET routing protocols and analysis of their functionality and comparison from the safety point of view is the subject of present research, whereas their performance (reciprocally delay) is a prominent key for the selection of suitable routing algorithm. In this thesis, we will discuss the concept of data dissemination, requirements, and challenges of VANET routing protocols. Also, due to requirements of VANET routing protocols and their challenges such as frequent link breakages, message progress through the network, blind spots problem, and the lack of guaranteeing firm deadlines for different VANET applications, we propose a new VANET routing protocol. Then, in order to evaluate and validate our protocol, we simulate and compare it against other well-known protocols (e.g. VMB, RBLSM, Weighted 1-Persistence, etc.). At the end, results and comparisons show that our protocol is able to solve and meet the above mentioned problems and challenges, satisfies requirements and also enjoys numerous advantages over other methods. Also, the simulation results indicate the proposed protocol is able to decrease and limit End To End delay to 0.1 second, number of forwarder nodes to 1 node and increase the Packet reception ratio to 80% even in dense environments. Also, the proposed protocol is able to select most stable path/link in both sparse and dense environments
  9. Keywords:
  10. Real-Time Procces ; Vehicular Ad Hoc Network (VANET) ; Routing Protocol ; Safety-Critical Real-Time System ; Safety-Critical Application

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