An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. In mobile ad hoc network, each mobile node acts as a host as well as a router. These nodes communicate to each other by hop-to-hop communication. A number of routing protocols like Ad Hoc On-Demand Distance Vecto...

Wireless ad hoc network is a collection of mobile nodes and all nodes behave as router or host. Due to its dynamic nature and lack of central authority security is challenging task. The nodes of network may compromise from the various security threats and can leak the personal information. Numerous security threats such as Denial of Service, black hole attack, Gray-hole attack, Worm hole, Sybil...

Wireless Mesh Network has come out to be the next generation wireless communication technology. It provides a good solution to cheap wireless networking. The Network Layer in WMN is responsible for routing packets delivery and intruders take a deep interest in sabotaging this layer. Black-hole attack is a type of Denial-of-Service (DoS) attack which when carried out can disrupt the services of ...

A wireless ad-hoc network is a collection of autonomous nodes that communicate with each other by each node acting as router and maintaining connectivity in a decentralized manner. The network topology is dynamic because the connectivity among the nodes may vary with time due to node departure, new arrivals and the possibility of having mobilenodes. In this paper, weexplore the effect on per se...

A mobile ad-hoc network is an autonomous system of mobile nodes connected by wireless links in which nodes cooperate by forwarding packets for each other thereby enabling communication beyond direct wireless transmission range. The nature of ad-hoc networks makes them vulnerable to attacks especially in routing protocols. Providing security in mobile adhoc networks has been a major issue over t...

A mobile ad-hoc network (MANET) is wireless and an autonomous system such that nodes are move randomly in network. Every node to maintain host and router in network layer. The principal of routing protocol is Ad-hoc on demand Distance Vector (AODV). It is used node to node routing. AODV is searching path from source to destination in ad-hoc network. The network layer in OSI model so use many ty...

Black-Hole and Gray-Hole attack considers two of the most affected kind of attacks on the Mobile Ad-Hoc Network (MANET). Therefore, the use of intrusion detection system (IDS) has a major importance in the MANET protection. In this paper, a proposed optimized fuzzy based intrusion detection system is presented with an automation process of producing a fuzzy system by using an Adaptive Neuro-Fuz...

Mobile ad hoc networks are networks composed of wireless devices to create a network with the ability for self-organization. These networks are designed as a new generation of computer networks to satisfy some specific requirements and with features different from wired networks. These networks have no fixed communication infrastructure and for communication with other nodes the intermediate no...

The aim of this paper is to model and evaluate the performance of intrusion detection systems (IDSs) facing black-hole and gray-hole attacks within wireless ad hoc networks (WANETs). The main performance metric of an IDS in a WANET can be defined as the mean time required for the IDS to detect an attack in the network. To evaluate this measure, two types of stochastic models called continuous t...