1Young Researchers Club, Science and Research Branch, Islamic Azad University, Ardabil, Iran
2Computer Engineering Department, University of Mohaghegh Ardabili, Ardabil, Iran
3Department of Computer Engineering, Germi Branch, Islamic Azad University, Germi, Iran
In this paper, we propose a scheme to improve existing Ad-Hoc On-Demand Distance Vector (AODV) routing protocol by discovering and maintaining multiple non-overlapped routes. Our routing protocol is a multipath version of AODV routing protocol that considers only the disjoint path. Due to non-overlapping among paths, when a link breaks in the network, only one of paths is expired. The presented routing protocol, called Ad hoc On-demand Non Overlapped Distance Vector (AONOMDV), is implemented by some modifications over AODV module in ns-2 simulator. Results of simulations show that AONOMDV has better performance in comparison with AODV and AOMDV in terms of the average end-to-end delay, the packet delivery ratio and the route discovery frequency.