Network simulators, which implement network protocols under some simulated conditions, have been widely used to analyze the feasibility of network protocols. Conformance testing of the simulator against the protocol is a very important task in the community of telecommunications. However, many current conformance testing methods face a problem of finding a systematic mechanism to verify the tes...

AODV (Ad hoc On Demand Vector) is a reactive routing protocol in wireless mobile ad hoc network (MANET). AODV is accepted because of its capacity to adjust quickly in dynamic system environment with least overhead and small management packet size. The adhoc networks are all that much helpless against Dos attacks on the network layer. Blackhole and Grayhole attacks are the far reaching attacks o...

The Ad Hoc on demand distance vector (AODV) routing protocol is designed for mobile ad hoc networks (MANETs). AODV offers quick adaptation to dynamic link conditions; it is characterized by low memory overhead and low network utilization. The security issues related to the protocol remain challenging for the wireless network designers. Numerous schemes have been proposed for establishing secure...

AODV protocol is an on demand reactive protocol, which exhibits congestion during high mobility and multiple data packet stream to a common destination. This may result in decaying the performance of AODV. The proposed modification is aim controlled congestion by applying efficient local route repair method. When the link failure is detected at intermediate node, a help message has broadcasts t...

MANETs (Mobile Ad Hoc Networks) are wireless networks with characteristics such as self organizing or autonomous, multi-hop and resource constrained. These resource constraints includes limited power, bandwidth etc. which in turn increases the difficulty in MANETs routing. The problem space includes route break, control overhead, limited energy etc. Ad-hoc On Demand Distance Vector (AODV) is th...

The routing protocols play an important role in the performance of the Ad-hoc mobile networks. The Ad-hoc On-Demand Distance Vector Routing Protocol (AODV) is a reactive routing protocol for mobile networks. The route discovery process in AODV is initiated only prior to link establishment for data communication. This research focuses on the effect of the Route states hold time parameter on the ...

Mobile Ad Hoc Networks (MANETs) are collections of mobile nodes that can communicate with one another using multihop wireless links. MANETs are often deployed in the environments, where there is no fixed infrastructure and centralized management. The nodes of mobile ad hoc networks are susceptible to compromise. In such a scenario, designing an efficient, reliable and secure routing protocol ha...

The Network Simulator (NS-2) is a most widely used network simulator. It has the capabilities to simulate a range of networks including wired and wireless networks. In this tutorial, we present the implementation of Ad Hoc On-Demand Distance Vector (AODV) Protocol in NS-2. This tutorial is targeted to the novice user who wants to understand the implementation of AODV Protocol in NS-2.

In this paper, we have compared important characteristics of MANET proactive routing protocol (DSDV), reactive protocols (AODV, DSR and TORA) and hybrid protocol (ZRP). Extensive simulations are being carried out with different load conditions of MANETs. The offered network loads in the performance plots are characterized by three parameters i.e. packet size, number of connections i.e. source d...

Mobile ad hoc network (MANET) security has become the focus of prolific research efforts. Driven by the unique and considerable difficulties of providing security arising from the dynamic nature of MANETs, many security schemes have been proposed. Rather than trying to encompass the entire field of MANET security, this paper focuses on networks using the popular Ad-hoc On-demand Distance Vector...