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The conventional Mobile Ad-hoc Network (MANET) is composed of mobile nodes without any infrastructure. But, emergent traffic such as disaster positioning by using wireless infrastructure is indeed required. Therefore, network deployment for ad-hoc would associate WiMax with WiFi which is called 802.16e MANET Environment in this paper. Based on the 802.16e MANET environment, we propose a novel Hierarchical...
Routing in mobile ad-hoc networks is a challenging task. This paper proposes MPG-TAR, trust-aware routing protocol based on the formation of trusted Mobile Process groups(MPG). MPG is a collection of processes or mobile nodes present in defined vicinity where they all lie within each other's radio transmission range. The trusted MPG groups formed in MPGTAR calculate trust based on the mobility rate,...
With regard to the security problems in Wireless Mesh Networks, researches have mainly focused on Intrusion Prevention and Intrusion Detection methods. However, as the only method which can eliminate the malicious node thoroughly from the WMNs, Intrusion Response has not been paid enough attention. Traditional Intrusion Response method like Flooding Broadcast can effectively secure the MANET because...
The widely-used protocol in Mobile Ad hoc Networks (MANET) achieves a dynamic, self-organizing and on-demand multi-hop routing by means of the AODV routing protocol. In AODV, wireless links disconnect occasionally because the nodes on the routing path are unreachable, which makes AODV inefficient and unreliable. By constructing a mesh structure, AODV-BR improves AODV routing protocols and provides...
The multicast routing is very important for Mobile Ad hoc Networks (MANET). Though many multicast routing protocol are proposed, we consider ODMRP, which is a mesh based routing protocol. In ODMRP the reliability of the communication can be maintained by putting the relay nodes in the mesh. However, when the network is overloaded the performance of ODMRP is deteriorated. In this research, we try to...
The process of analyzing available network forensics evidence to determine their meaning and significance can be very involved. It is often necessary to develop a timeline of significant events to obtain an overview of what occurred, to create relational diagrams showing which users are connected to which systems, or to correlate and analyze data to find noteworthy patterns of network traffic. However,...
The inherent freedom in self-organized mobile ad-hoc networks (MANETs) introduces challenges for trust management; particularly when nodes do not have any prior knowledge of each other. Furthermore in MANETs, the nodes themselves should be responsible for their own security. We propose a novel approach for trust management in MANETs that is based on the nodes' own responsibility of building their...
Caching of frequently accessed data in multi-hop ad hoc environment is a technique that can improve data access performance and availability. Cooperative caching, which allows sharing and coordination of cached data among several clients, can further enhance the potential of caching techniques. In this paper, we propose a fuzzy cooperative caching scheme in mobile ad hoc networks. The cache management...
In this paper, we propose an Entropy-based Stability QoS Routing with Priority scheduler in MANET using fuzzy controllers (ESQR). The main idea of ESQR algorithm is to construct the new metric-entropy and select the stability path with the help of entropy metric to reduce the number of route reconstruction so as to provide QoS guarantee in the ad hoc network. Controllable elements in the different...
In this paper is presented a new model for intelligent traffic systems, which is able to integrate a typical surveillance scenario and topology independent immediate data delivery. Surveillance part is based on image analysis, namely general foreground/background modeling scheme. Data delivery system ensures data transmission over mobile Ad-hoc network, by providing communication framework for this...
Guaranteeing quality of service is a key problem to multimedia stream in mobile Ad Hoc networks. The related works study the channel delay and bandwidth based on the MAC layer; however, there is little focus on queue delay. In a mobile environment, the changing of queue is quite different from those in static conditions. How to calculate the queue delay is a challenging question in mobile Ad Hoc networks...
Caching of frequently accessed data in mobile ad hoc networks is significant technique that can improve the date access availability and save the communication overhead. In this paper, we propose a novel scheme for cooperative cache placement in mobile ad hoc networks. In our scheme, cache place is developed to improve the utilization rate of caching data and the cache hit ratio. As a part of cooperative...
We investigate the channel formation in a Mobile Ad Hoc Network (MANET) using the NS-2 simulator. The results show that the normalized node density is a good measure for predicting the performance of a MANET: for the normalized node density of 2.8 two nodes in a MANET running the AODV routing protocol stay connected 90% of the time. For the DSR protocol this is only 70%. The results may be used in...
This paper reports on work in progress on developing a unified co-evolutionary/pricing framework for Mobile Sensor Networks (MSN) self-organization. MSN self-organization involves cooperative sensor positioning and formation of a multi-hop Mobile Ad-hoc NETwork (MANET) enabling sensor information acquisition and communication while prolonging MSN life-span. A number of inherent MSN traits such as...
This paper derives analytical expressions for the probability of link availability and the node degree distribution in mobile ad hoc networks. The expressions (1) account for system parameters such as the node density, node transmission range, and the radio channel fading; and (2) hold for an arbitrary mobility model with initially uniformly distributed spatial nodes that are allowed to move only...
A mobile agent is a particular type of agent with the ability to migrate from one host to another where it can resume its execution. Mobile agents can be used in applications for wireless network to save bandwidth and time. In this paper we consider dependability aspect, especially reliability issues that need to be addressed before the mobile agents can be used for a broad range of commercial applications...
The proposal of our work present instantiation based Way Point Routing (WPR), in which a number of intermediate nodes on a route are selected as waypoints and the route is divided into segments by the waypoints. Waypoints, including the source and the destination, run a high-level inter segment routing protocol, while the nodes on each segment run a low-level intra segment routing protocol. One distinct...
The performance of Mobile Ad Hoc Networks (MANETs) is influenced by many factors including node mobility, node density, and wireless transmission range. The mobility model representing the moving behavior of mobile nodes plays an important role in performance analysis and simulation of MANETs. In this paper, we first investigate the effect of node mobility on two fundamental characteristics of MANETs:...
Mobile ad-hoc networks (MANET) are particularly vulnerable on account of its intrinsic characteristics of open medium, dynamic topology, absence of central authorities, distributed cooperation and constrained capability. These vulnerabilities create significant challenges for routing protocols operating in the entire network. In which, the reactive routing, i.e. AODV, bears the brunt of various kinds...
A Resource management is one of the important services that are offered in any network. Mobile ad hoc network (MANET) is a gathering of mobile wireless nodes that are located in dynamic network with unnecessary using pre-existing infrastructure all mobile nodes which are free for any movement to any side and they are less network. This network is going ahead to zero configurations that would create...
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