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VANET's is an emerging field in communication networks and has become a promising tool to provide safety and connectivity for an intelligent transport system. Choosing appropriate routing protocols is necessary for smooth communication. In this paper we use NS-3 to implement AODV, OLSR and DSDV routing on V-to-V, I-to-I and V-to-I nodes. Then we employ Qos (Quality of service) parameters like throughput,...
From past few years, wireless networks are mostly preferred because of its mobility and scalability characteristics. Mobile Ad hoc network (MANET) is one of such important wireless communication network. The open medium and wide distribution of node makes MANET vulnerable to malicious attacks. It demands for more secure intrusion detection system. The EAACK intrusion detection system solves the limitations...
A mobile Ad hoc network (MANET) is a collection of random and frequently mobile nodes within a limited area. The nodes in a MANET are connected in a fashion to form a decentralized wireless network without using any communication infrastructure. Transmission Control Protocol (TCP) in Ad hoc network provides a reliable connection, congestion and flow control, in-order delivery and the reliable transportation...
Mobile Ad hoc network (MANET) is a special type of network that supports connectivity without any infrastructure and it faces many challenges such as high mobility rate of the nodes, resource constraint and the nodes work without any central administration. In Mobile Adhoc Network (MANET), the mobile devices have restricted resources such as limited battery power, so it is difficult for traditional...
Trust-based secure routing in MANETs has attracted lot of research attention worldwide. It is effective in providing secure routing by isolating malicious nodes and other overheads from MANETs. This paper proposes, GradeTrust, a secure routing protocol for MANETs based on the trust levels of network nodes. It uses trust to isolate black hole routing attacks thus offering secure routing of data traffic...
AODV protocol, as one of relatively mature protocols, is now applied to the Ad Hoc network. However, there are still many flaws of its own, such as routing overload and large network delay. By analyzing the relations between ART (Active Route Timeout) of default parameters and other parameters of AODV protocol, membership function of ART has been found with control packets sending, path length and...
Data exchanging on the roads are becoming more and more interesting, as the number of vehicles equipped with computing technologies and wireless communication devices are poised to increase dramatically. Communications between vehicles (V2V) and Vehicle to Infrastructure (V2I) is becoming a promising field of research and we are moving closer to the vision of intelligent transportation systems (ITS)...
The wireless sensor networks have accomplished advancement in various applications such as military, smart homes, patient monitoring, and intelligent building. In this paper, the smart home proposed system has been presented basis on two types of sensor. As well as the evaluation comparison among Destination Sequenced Distance Vector with Ad hoc On Demand Distance Vector has discussed to determine...
Ad hoc network is sub-domain of network communication in which user communicates with each other by temporarily network without any centralized network administration. Each node acts as node as well as router to forward data packets on the basis of routing protocols. Wireless communication is the most research oriented era now days; most importantly in the field of vehicular ad hoc network. VANET...
Routing protocols of Mobile Ad hoc networks have long been considered as a viable solution in tactical networks as they provide relatively more robust communication mechanism. AODV's capability of saturating the whole network with Route Request messages has been a topic of debate for quite some time and scientists have proposed various mechanisms to overcome this issue. In this paper, authors have...
A mobile Adhoc Network (MANET) is a huddle of autonomous mobile nodes which dynamically forms a temporary multi-hoped radio network, without any use of previous infrastructure. Due to its characteristics like limited resources, changing topology and lack of centralized administration, MANET is exposed to various network layer attacks.
Mobile Ad-hoc is the most attractive area of research because of its dynamic topology and mobile environment of network. It is a structure less, self adjustable, dynamic network. Routing is the main challenging in MANET because of its nature. AODV is reactive routing protocol which is based on Breadth first search and it uses flooding. DSDV is a proactive routing protocol which maintains a routing...
During blackhole attack, a malicious node captures packets and not forwards them in the network and advertises itself as having the shortest path to the node whose packets it wants to intercept. If more than one malicious nodes work together as a group then the damage will be very serious. This type of attack is called cooperative black hole attack. To avoid single blackhole attack in MANET we considered...
Wireless links in a Mobile Ad Hoc Network (MANET) is unreliable. So the links in between the nodes in a MANET breaks frequently. Mobility of nodes in a MANET increases the level of unreliability of the link between the nodes. Failure of a link also leads to complete route failure and affect the performance of MANET. So, there is a need to study the effect of mobility of nodes that causes a link break...
This paper designs a campus network according to the characteristics of the terrain in Inner Mongolia University. The outdoor area where contains the rockeries or lake uses the hybrid network mode of WiFi-Mesh through investing the specific features of terrain in campus. The routing protocol used in wireless mesh network is improved according to the characteristics of wireless mesh network and the...
An Ad Hoc network is a set of portable nodes, that could establish communication anytime and anywhere between themselves; however, a set of routing protocols is needed to set the routes between nodes in order to deliver a message from the source to the destination node. Many routing protocols have been proposed in order to achieve optimum routing performance in a mobile Ad Hoc network scenario, but...
Research and propose a path collection mechanism optimization scheme of AODV protocol. This scheme adopts the path collection mechanism in DSR protocol to improve the performance of AODV, meanwhile it avoids being affected by the high running overhead and weak scalability of DSR protocol. Results obtained by OPNET Simulation shows that the optimized AODV scheme performs effectively in terms of packet...
Mobile ad-hoc network is dynamic in nature with no centralized organizer. The ad-hoc communication depends on the radio range, node mobility as well as intermediate nodes because communication is performed from one device to another with the help of intermediate nodes, that means each mobile node is treated as a route and hence arises the problem of data security in communication, before that proposal...
A mobile ad-hoc network is a wireless network such that nodes are move dynamically in network. In OSI network layer there is lot of attack but introduce only collaborative black hole and worm hole attack. A group of black hole node easily employed against routing in mobile ad-hock networks called collaborative black hole attack. When two malicious node is create a tunnel is called worm hole attack...
Mobile Ad-hoc Network (MANET) is special types of mobile wireless network where the groups of mobile devices form a temporary network without any kind of an infrastructure. It is very usefully due to its self maintenance, self organizing and by reason of mobility of wireless communication. Two major issues are found in such kind of network performance and security. In mobile ad-hoc network there are...
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