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Improvement of AODV Routing Protocol in VANETs

Kadkhoda Mohammad Mosaferi, Kaveh | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 46678 (56)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Hemmatyar, Ali Mohammad Afshin
  7. Abstract:
  8. Vehicular ad hoc networks (VANETs) can prepare scalable and cost effective solutions for applications such as traffic monitoring and vehicle safety. However, VANETs often experience congestion quicker than wired networks, leading to high end to end delay. The optimization method was proposed to improve the end to end delay of Ad-hoc On-demand Distance Vector (AODV) routing protocol in VANETs. It was shown that Last-In-First-Out with FrontDrop (LIFO-FD) queuing system for AODV routing protocol performs better in high traffic periods in term of end to end delay. The simulation studies were performed on the impact of queuing systems on end to end delay of AODV routing protocol in VANETs. The proposed queuing solution can be applied to delay sensitive but loss tolerant applications. The results demonstrate not only that LIFO-FD queuing system results in lower delay than First-In-First-Out with TailDrop (FIFO-TD) queuing system but also that it does not adversely affect the delivery ratio of AODV routing protocol in VANETs. Simulation results show that end to end delay of AODV routing protocol decreases as much as 58% under high data traffic load. The proposed method does not need changes to higher layer protocols, does not create network overhead, and can work in conjunction with improvements at other layers
  9. Keywords:
  10. Queueing System ; End-to-End Delay ; Vehicular Ad Hoc Network (VANET) ; Ad Hoc On-Demand Distance Vector (AODV)Routing Protocol

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