Routing Protocols Selection Based on Number of Nodes

Abstract

A collection of mobile nodes without any fixed topology forming an instant network is referred to as ad hoc network. In such type of network, each node works as both host and router simultaneously, and has the ability to move out or join in the network freely at run time. The network that is created instantly does not have any base infrastructures as in case of the conventional networks, but it is compatible to those with the conventional networks. Since the nodes in a Mobile Ad hoc Network (MANET) can serve as routers and hosts, also as it is highly dynamic in terms of topological changes. Choosing the appropriate mobility model in a particular environment that represents the moving behavior of the mobile node that should be realistic is very much critical. Changing the mobility scenario, allows changes in routing performance of a protocol in terms of routing metrics such as throughput, delays, and routing overhead etc. within the current chosen application area. According to analysis done over the routing protocols: AODV, DSR and DSDV, we can observe that these protocols perform well for specific different number of nodes. Each of these protocols has a limitation of number of nodes to perform in different traffic regions. This paper proposed protocol selection mechanism, which will select the suitable protocol between these three protocols based upon the CBR traffic agents. The proposed work will be helpful for improving uninterrupted data transmission, achievable average end-to-end delay and throughput, robustness in packet delivery fraction (PDF) as well as dropped packet ratio (DPR), routing overhead and jitter. The protocol will be ready to face any change in number of nodes, traffic models and similar scenario.