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MANETs are unplanned, self-organizing networks composed of mobile nodes that utilize mesh networking principles for inter-connectivity. They do not have a fixed infra-structure which makes them easy to build over an area. Mobile Ad hoc networks (MANETs) have several advantages compared to traditional wireless networks. These include ease of deployment, speed of deployment and decreased dependency...
Communication in Mobile Ad-Hoc Network (MANET) is based on mutual trust between the participating nodes. Due to features of open medium, dynamic changing topology, lack of centralized monitoring and management, MANETs are vulnerable to various security attacks. Hence, finding a secure and trustworthy end-to-end path in MANET is a real challenge. The paper presents a solution for trustworthy path discovery...
Modeling and computing trust in distributed computing systems like ad-hoc networks is very much challenging. Particularly in Wireless Sensor Networks (WSNs), where the network is formed and self-organized by relying on the almost strangers for reliable and normal operation, it is important to compute the trustworthiness of individual nodes in distributed manner. In order to find the trustworthiness...
Due to the nature of distribution and self-organization, Mobile ad hoc networks rely on cooperation between nodes to transfer information. Therefore, one of the key factors to ensure high communication quality is an efficient assessment scheme for risks and trust of choosing next cooperative potential nodes. Trust model, an abstract psychological cognitive process, is one of the most complex concepts...
In mobile ad hoc networks, the security enforcement and its implementation becoming increasingly difficult due to quasi-static nature of the mobile nodes (wireless communication devices), no fixed network topology and more importantly absence of centralized authority. In such networks, communication links between nodes may be bandwidth constrained, messages typically roamed in multi-hoped fashion,...
A Security Association (SA), established by strong authentication, between a node pair in a Mobile Ad hoc Network (MANET) could be lost when its route is disconnected. In contrast, in good channel conditions and stable topology, routing protocols such as the Optimized Link State Routing (OLSR) do not refresh routes periodically, and in doing so, an SA bound to these routes could become stale and out...
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...
Due to its ad hoc, infrastructure-less self-configuring and collaborating nature, wireless sensor networks (WSNs) are very much vulnerable to different security threats. The goal-oriented nature of many sensing applications results in collaboration. In fact, collaboration helps to improve WSNs efficiency as well as the data-centric behavior of WSNs. Collaboration along with its advantages like efficient...
Vehicles will exchange much information in the future in order to efficiently maintain their inner model of the environment. Before they can belief received pieces of information, they must evaluate their reliability. Trust is a mechanism to estimate this reliability based on the sender. As cars often drive the same route, they meet each other again and again. They can establish friendship-like relations...
Vehicular ad hoc network (VANET) is a promising technology for providing safer roads and a more efficient driving experience. However, the deployment of VANETs is dependent on several issues in security and privacy. In this paper, a trust-based privacy-preserving model for VANETs is presented. The model is unique in its ability to protect privacy while maintaining accurate reputation-based trust....
Telecommunication and Internet services are constantly subject to changes, seeking the customers full satisfaction. Enriching these services with innovative approaches such as context-aware, social, mobile, adaptable and interactive mechanisms, enables users to experience a variety of personalized services seamlessly across different platforms and technologies. In this sense, it is expected that next...
Successful implementation of the National Broadband Plan is essential for driving the U.S. economy and society, and for meeting the national challenges. It is a critical enabling infrastructure for other industries such as healthcare, energy, and transportation, and in fact is a key component of the value chain across all sectors. Improving the cost effectiveness and impact of ICT will enable a higher-performance...
A mobile ad-hoc network (MANET) is a peer-to-peer wireless network where nodes can communicate with each other without the use of infrastructure such as access points or base stations. Nodes can join and leave the network at anytime and are free to move randomly and organize themselves arbitrarily. Due to this nature of MANET, it is possible that there could be some malicious and selfish nodes that...
To deal with the challenges posed by device capacity and capability, and also the nature of ad hoc networks, service discovery model is needed that can resolve security and privacy issues with simple solutions. The use of complex algorithms and powerful fixed infrastructure is infeasible due to the volatile nature of mobile ad hoc environment and mobile devices. This paper presents a Secure and Lightweight...
The performance and security of ad hoc networks rely on the self-organized, collaborative and the trusted between the distributed links. To route and forward the data, it is important to evaluate the individual behavior of each node in network, benevolent nodes can keep the network working smoothly. However, malicious nodes present in the network that try to disrupt, distort or disturb the network...
Trust-based solutions provide some form of payment to peers to encourage good behavior. The problem with trust management systems is that they require prior knowledge to work. In other words, peers are vulnerable to attack if they do not have knowledge or correct knowledge of other peers in a trust management system. Therefore, considering only trust is inadequate when a decision is made to identify...
Building trust has been recognized as a new security approach for wireless distributed networks. In the paper, we try to provide a completely new view by building trust territory in ad hoc networks. The concept of trust territory is addressed and the approach to build trust territory is also discussed. A trust territory contains all nodes trusted by the node. It is considered secure to communicate...
The peer-to-peer network has been widely used to share large files anonymously. Because of its open nature, nodes can join and leave peer-to-peer networks freely. But there are few limited methods to ensure their trust. Malicious nodes can expose great security threats to peer-to-peer networks such as spreading unauthentic data and viruses. But handling all the malicious nodes in the same way causes...
We consider using trust information to improve the anonymity provided by onion-routing networks. In particular, we introduce a model of trust in network nodes and use it to design path-selection strategies that minimize the probability that the adversary can successfully control the entrance to and exit from the network. This minimizes the chance that the adversary can observe and correlate patterns...
We discuss the near-term and far-term security, trust and dependability challenges in wireless and mobile telecommunications, in an always-connected environment. We identify some relevant technological and threat trends and propose research priorities in order to solve and respond to the future security-related challenges. Threat trends include increase of complexity and connectivity and challenges...
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