International Journal of Computer Networks and Applications (IJCNA)

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International Journal of Computer Networks and Applications (IJCNA)

International Journal of Computer Networks and Applications (IJCNA)

Published By EverScience Publications

ISSN : 2395-0455

A Novel Dynamic Message Time Synchronization Protocol for Real Time Data Exchange in Vehicular Ad Hoc Networks

Author NameAuthor Details

H. Ateeq Ahmed, Dhanaraj Cheelu

H. Ateeq Ahmed[1]

Dhanaraj Cheelu[2]

[1]Department of Computer Science and Engineering, Jawaharlal Nehru Technological University Anantapur, Ananthapuramu, Andhra Pradesh, India.

[2]Department of Computer Science and Engineering, Dr. K. V. Subba Reddy Institute of Technology (Affiliated to Jawaharlal Nehru Technological University Anantapur), Kurnool, Andhra Pradesh, India.

Cite this Article

DOI: 10.22247/ijcna/2024/224447

Pages : 213-231

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Abstract

Vehicular Ad Hoc Networks (VANETs) have become a vital technology to improve road safety and traffic control. In the context of VANETs, precise time synchronization among vehicles is paramount to enable effective real-time data exchange. This research introduces a novel Dynamic Message Time Synchronization (DMTS) protocol designed to optimize timing message coordination in large-scale VANETs. DMTS employs an intelligent selection mechanism to identify the most suitable time synchronization nodes, significantly reducing the number of transmitted timing messages. To ensure robust synchronization, the protocol periodically readjusts the clock offset of interconnected vehicles, enhancing synchronization accuracy. Leveraging a bidirectional timing message synchronization approach, the Maximum Likelihood (ML) estimation for clock offset design is derived, assuming a Gaussian noise model. Through comprehensive simulation analyses, the effectiveness of the DMTS protocol is validated, considering key performance metrics such as delay, packet delivery ratio, and throughput. The proposed DMTS protocol achieves 19.58% and 28.12% less delay in comparison with ABTS and STETS protocols. In terms of packet delivery ratio, it achieves 12.55% and 33.70% improvement when compared with ABTS and STETS protocols. Finally, there is an increase in throughput performance of proposed DMTS by 26.71% and 48.10% with its counterpart protocols. These results demonstrate the superiority of DMTS over existing protocols, making it a promising solution for real-time data exchange in VANETs, with implications for improved road safety and traffic efficiency.

Index Terms

DMTS Protocol

Time Synchronization

Clock Drift

Clock Offset

Clock Skew

Maximum Likelihood

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