Performance of Routing Protocols in Different WANET’s Terrain Size with Reference of Channel Capacity

Abstract

The radio channels undergo from a number of impurity such as shrinking, clatter, intrusion, shadowing and multi-path loss effects. Due to above mentioned reasons the wireless channel become unreliable and hence data packets may not be delivered as desired. Another issue related to routing protocols is position dependent. The congestion presents in a channel result increase the number of collisions and a successive waste of bandwidth. The nodes in networks have limited bandwidth and battery power; therefore need to have efficient use of channel capacity by Routing Protocol. This paper has been examined the performance of reactive AODV, proactive BELLMAN FORD and hybrid ZRP routing protocols in 250 m × 250 m, 500 m × 500 WANET’s terrain size for 50, 100 and 150 nodes placed randomly with effect of channels capacity. The performance of protocols has been evaluated with regards of following metrics average jitter(s), average end-to-end delay(s) and average throughput (bits/s) using QualNet 5.0 network simulator. Results show the reactive protocol has given better results in comparison to proactive and hybrid protocols in case of jitter & end-to-end delay and irrespective to the number of channels & node density. However, average throughput decreases with respect of routing protocols irrespective to the number of channels and node density.