A Mobile Ad-Hoc Network (MANET) is self-configuring network of mobile nodes connected by wireless links to form an arbitrary network topology without the use of existing Infrastructure. MANETs are characterized by multi-hop wireless connectivity, a frequently changing network topology and the need for efficient dynamic routing protocols plays an important role. Severe routing protocols targeted specifically at this environment have been developed and some performance simulations are made on a mature routing protocol i.e. Ad hoc On-Demand Distance Vector Routing. In this paper we perform extensive simulations using network simulator considering four performance metrics. For experiment purposes and to determine the impact of network size on the performance of this routing protocol we considered three different entity mobility models namely Random Direction (RD), Random Walk (RW) and Gauss Markov (GM) models with rectangular area sizes 1000 × 1000 m2. These three Mobility Models are selected to represent the possibility of practical applications in future. Our framework aims to evaluate the impact of different mobility models on the performance of MANET routing protocols.

Mobile ad hoc networks (MANETs), Routing protocols, AODV and NS-2

[1] Dimitri Bertsekas and Robert Gallager, “Data Networks- 2nd Edition”, Prentice Hall, New Jersey, ISBN 0-13-200916-1.
[2] Jun-Zhao Sun, “Mobile Ad Hoc Networking: An Essential Technology for Pervasive Computing” International Conferences on Info-tech and Info-net Proceedings, ICII 2001, Volume 3, Beijing, pp 316-321.
[3] Krishan Kant Lavania, G. L. Saini, Kothari Rooshabh H., Yagnik Harshraj A. “Privacy Anxiety and Challenges in Mobile Ad Hoc Wireless Networks and its Solution”, International Journal of Scientific & Engineering Research, Volume 2, Issue 9, September-2011, ISSN 2229-5518, pp 173-177.
[4] Anastasi,G. E. Borgia, M. Conti, E. Gregori, 2003 “IEEE 802.11 Ad Hoc networks: performance measurements”, Proceedings of 23rd International Conference on Distributed Computing Systems, May 2003, pp 758 – 763.
[5] Neeraj Kumar Pandey and Amit Kumar Mishra, "An Augmentation in a Readymade Simulators Used for MANET Routing Protocols: Comparison and Analysis", International Journal of Computer Sciences and Engineering, Volume-02, Issue-03, Page No (60-63), Mar -2014.
[6] Nilesh P. Bobade, Nitiket N. Mhala, “ Performance Evaluation of Ad Hoc On Demand Distance Vector in MANETs with varying Network Size using NS-2 Simulation” , International Journal on Computer Science and Engineering, Volume 02, No. 08, 2010, pp. 2731-2735.
[7] Tracy Camp, Jeff Boleng and Vanessa Davies, “ A Survey of Mobility Models for Ad Hoc Networks Research”, Wireless Communication & Mobile Computing (WCMC): Special issue on Mobile Ad Hoc Networking:Research, Trends and Applications, vol. 2, no. 5, pp. 483-502, 2002.
[8] Fan Bai, Ahmed Helmy, “A Survey of Mobility Models in Wireless Ad hoc Networks”, in Wireless Ad Hoc and Sensor Networks, Chapter 1, Kluwer Academic Publishers, June 2004, pp. 1-291.
[9] BONNMOTION: “A mobility scenario generation and analysis tool”, University of Bonn, [Online]. Available: http://net.cs.uni-bonn.de/wg/cs/applications/bonnmotion/
[10] “The Network Simulator - ns-2,” available at http://www.isi.edu/nsnam/ns/ referred on March 2013.