- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
Selection of an optimal path is a challenging issue in Mobile Ad-hoc network (MANET). This paper proposes a new mechanism for route selection combining Ad-hoc On-Demand Distance Vector (AODV) protocol with Ant Colony Optimization (ACO) to improve Quality of Service (QoS) in MANET. Based on the mechanism of ant colony with AODV, the finest route for data delivery is selected using pheromone value of the path. In the proposed work, pheromone value of a route is calculated based on end to end reliability of the path, congestion, number of hops and residual energy of the nodes along the path. The path which has highest pheromone value will be selected for transmission of the data packet. The simulation result shows that the proposed scheme outperforms AODV, Dynamic Source Routing (DSR) and Enhanced-Ant-DSR routing algorithms.
CONCLUSSION AND FUTURE WORK
In this paper, a routing scheme named Enhanced-Ant-AODV has been proposed for MANET. The performance of the proposed scheme along with three other reactive protocols AODV, DSR and Enhanced-Ant-DSR has been evaluated. From the simulation results, it can be said that Enhanced-Ant-AODV provides better results compared to Enhanced-Ant-DSR, AODV and DSR in terms of packet delivery ratio, throughput, average end to end delay and percentage of node survived. The performance analysis of the proposed scheme with respect to packet loss ratio, energy consumption and jitter remains as future work. Performance comparison of Enhanced-Ant-AODV with ANT/AODV (AbdelMoniem et al., 2010), Ant-DSR (Aissani et al., 2007) and Ant/Dymo (Martins et al., 2010) can also been done in future. Moreover, available bandwidth of the links can also be used as one of the path selection parameters to ensure bandwidth availability in advance. The protocol should also consider the sub-optimal path for exploiting new routes if route error occurs. The proposed technique can be applied in Vehicular Ad-hoc Networks (VANET) (Al-Sultan et al., 2014). Node positions are known in VANET since it is a GPS based network. So, link reliability can be measured considering distance rather than received signal strength. This will cut down the computation burden of nodes.