Abstract
Mobile ad hoc networks (MANETs) are wireless networks, which consist of mobile nodes that communicate over wireless media. MANETs are typically characterized by high mobility and frequent link failures. Since routing protocols are crucial for the success of MANETs, multipath routing can be employed to reduce link failure so that alternate paths will be available. This paper aims to develop and evaluate the performance of a new multipath routing protocol based on the ad hoc on-demand distance vector (AODV) routing protocol. It is an on-demand multipath routing protocol named ad hoc on-demand distance vector-secure multipath routing (AODV-SMR). The on-demand multipath routing protocol was evaluated against three performance metrics: packet delivery ratio, average end-to-end delay and normalized routing load. The simulation results, obtained using an OMNET++ simulator, showed that the proposed protocol exhibits significant improvement in the packet delivery ratio. It also outperformed the ad hoc on-demand multipath distance vector (AOMDV) protocol in the average end-to-end delay, and outperformed AODV in the normalized routing load metric.
Highlights
Mobile ad hoc networks (MANETs) have many useful applications such as in military battlefields, conferences, personal area networking, vehicular ad hoc networks, emergency disaster relief, research, and education in remote areas with poor infrastructure[1,2,3]
In this paper, we proposed a new node and link-disjoint multipath routing protocol based on the ad hoc on-demand distance vector (AODV) protocol
The new protocol overcomes the limitations of on-demand single path routing protocols such as AODV, and multipath routing protocols such as ad hoc on-demand multipath distance vector (AOMDV)
Summary
Mobile ad hoc networks (MANETs) have many useful applications such as in military battlefields, conferences, personal area networking, vehicular ad hoc networks, emergency disaster relief, research, and education in remote areas with poor infrastructure[1,2,3]. Simulation results of the NDM_AODV protocol showed that distance scheme” [ibid] The purpose of these schemes is to it improved the packet delivery ratio and reduced the identify spatial node-disjoint multiple paths and combine them normalized routing load and average end-to-end delay. In AODV, a node receives a set of path requests from the same node or different nodes.The protocol only records the first request and compares it with the following requests If it is the latest or shortest, it updates the registered request in the routing table. These nodes record only the first reply and ignore the rest. The source node waits for the arrival of the last reply (or the end of the wait time) and calls the (complete Route Discovery) function
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