M. Chitra

Work place: Department of Computer Science School of Engineering & Technology Pondicherry University Puducherry- 605014, India

E-mail: chitra.jrf@gmail.com


Research Interests: Bioinformatics, Intrusion Detection System, Data Structures and Algorithms, Analysis of Algorithms, Detection Theory


Dr. M. Chitra is a Guest Faculty in the the Department of Computer Science, Pondicherry University. Her areas of interests include VANET, Theory of Computation, etc. She has to her credit a number of research papers in international journals and conferences. She is the recipient of UGC-JRF Award from UGC in the year June 2009, NEW DELHI.

Author Articles
Acknowledgement based Localization Method (ALM) to Improve the Positioning in Vehicular Ad Hoc Networks

By M. Chitra S. Siva Sathya

DOI: https://doi.org/10.5815/ijcnis.2018.11.06, Pub. Date: 8 Nov. 2018

Localization in Vehicular Ad Hoc Networks is a challenging issue due to the dynamic topology and high mobility of vehicles. Finding the exact location of the vehicles is not possible in this network due to the vehicles moving speed. In vehicular ad hoc networks, various kinds of localization techniques are used to know the position and the location of the vehicles. These techniques do have some limitations due to obstacles on the roadside, building shadow, tunnels and bad weather condition, etc. This paper is motivated to propose an algorithm to increase the localization accuracy and localization error. Acknowledgement based Localization Method (ALM) is used to improve the vehicle’s positioning information while broadcasting an Emergency Safety Message. ALM updates the position information whenever the vehicle changes its position. The proposed algorithm is compared with RSSI, TOA and DLM based localization techniques. The result shows that ALM algorithm improves the accuracy level and reduces the error rate caused by incorrect position estimation.

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