in this paper, an anomaly detection method in cluster-based mobile ad hoc networks with ad hoc on demand distance vector (aodv) routing protocol is proposed. in the method, the required features for describing the normal behavior of aodv are defined via step by step analysis of aodv and independent of any attack. in order to learn the normal behavior of aodv, a fuzzy averaging method is used fo...

For most existing routing protocols of mobile ad hoc network (MANET), more efficient security mechanisms against the attacks from malicious, compromised and selfish nodes are highly demanded. This paper proposes a series of security mechanisms for the Ad-hoc On-demand Distance Vector (AODV) Routing protocol. Three techniques, including digital signature, one-way hash function and double one-way...

On-demand routing protocols for Mobile Ad-hoc networks registers unexpected performance behavior when multiple data streams are sent to common destination. This scenario is common when MANET is connected to Internet through common gateways or used in similar cases. The AODV outperform DSR in the normal situation but in the constrained situation DSR out-performs AODV, the degradation is as sever...

Mobile ad-hoc networks (MANET) consists several mobile nodes that communicate to each other without any centralized control. In such network where there is no infrastructure, mobility of nodes is a major concern. In MANET nothing is fixed, topology is dynamic so it can be changed. Hence in such network timely response for time critical task is a major challenge. In this paper our proposed work ...

Mobile Ad hoc networks(MANET) are characterized by multihop wireless connectivity, infrastructure less environment and frequently changing topology. The nodes acts as router and communicate to each other. This paper aims to provide a means of understanding the issues and protocol(OSPF,DSR,AODV,TORA.OLSR.DSDV) of MANET and investigating behavior of DSR,AODV,TORA protocol using metrics Throughput...

In a MANET, the aggressive progress of research is running continuously after the important study of AODV, DSR, TORA and OLSR routing protocols. Many studies and researches are done by using different methods on these routing protocols in manner of performance evaluation. By this study every different method and simulation environment gives the different results, means every applied method give...

The Ad hoc On-demand Distance Vector (AODV) is an on-demand routing protocol designed specifically for mobile, ad hoc networks. But the packet latencies with AODV can be very high, > 100 ms on average, especially when the network load is low and node mobility is high. To mitigate this effect, we have enhanced AODV with a proactive technique, which lets receiver nodes broadcast periodic ‘beacons...

The dynamic topology of mobile ad hoc networks (MANETs) is caused by node mobility and fading of the wireless link. Link reliability is often measured by the estimated lifetime and the stability of a link. In this paper we propose that the stability of a link can be represented by the time duration in which the two nodes at each end of a link are within each other’s transmission range and the f...

Dominant Pruning (DP) is a distributed connected dominating-set algorithm that can be used for reducing the impact of flooding in wireless ad hoc networks. We propose an enhanced dominant pruning (EDP) approach to be used in the route discovery process of on-demand routing protocols. To show the benefits of EDP, we integrate EDP into the Ad-hoc On-demand Distance Vector (AODV) protocol. We pres...