Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 294 for “"Ad hoc networks"”.
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Information collection algorithm for vehicular ad-hoc networks (application domain: Urban Traffic Wireless Vehicular Ad-Hoc Networks (VANETs))
… with (yet to be realized) potential to improve road safety, driving comfort and traffic control. In this research, we present a novel algorithm which is based on V2V communication, uses in-vehicle sensor information and in collaboration with the other vehicles' sensor information can detect road …
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Performance improvement in mobile ad-hoc networks.
… the network performance under realistic mobile ad-hoc networks environments without modification of the standard. Overview of this research is summarized as follows: First, a packet-fragmentation technique to improve network throughput under the worst channel conditions is proposed. While the …
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Collaboration Enforcement In Mobile Ad Hoc Networks
Mobile Ad hoc NETworks (MANETs) have attracted great research interest in recent years. Among many issues, lack of motivation for participating nodes to collaborate forms a major obstacle to the adoption of MANETs. Many contemporary collaboration enforcement techniques employ reputation mechanisms …
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Mobile ad hoc networks for intelligent systems
Advances in wireless technology and portable computing along with demands for high user mobility have provided a major promotion toward the development of ad hoc networks. Mobile ad hoc networks feature dynamic topology, self-organization, limited bandwidth and battery power of a node. They do not …
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Dynamic services in mobile ad hoc networks
… in infrastructure-less environments. Mobile Ad Hoc Networks (MANET) are the general model of these higly dynamic networks that can be specialized, depending on application cases, in more specific and refined models such as Vehicular Ad Hoc Networks and Wireless Sensor Networks. Two …
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Opportunistic clock synchronization for ad hoc networks
An ad hoc network is a collection of computing nodes communicating over wireless channels without relying on any fi xed infrastructure such as servers and towers. Such networks are useful in rescue operations, and in rural and military settings. Clock synchronization is an essential building block …
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Routing in heterogeneous wireless ad hoc networks
Wireless ad hoc networks are used in several applications ranging from infrastructure monitoring to providing Internet connectivity to remote locations. A common assumption about these networks is that the devices that form the network are homogeneous in their capabilities. However in reality, the …
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Virtual infrastructure for wireless ad hoc networks
… of the most significant challenges introduced by ad hoc networks is coping with the unpredictable deployment, uncertain reliability, and erratic communication exhibited by emerging wireless networks and devices. The goal of this thesis is to develop a set of algorithms that address these …
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Backpressure Policies for Wireless ad hoc Networks
Interference in ad hoc wireless networks causes the performance of traditional networking protocols to suffer. However, some user applications in ad hoc networks demand high throughput and low end-user delay. In the literature, the backpressure policy, i.e. queue backlog differential-based joint …
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Video Communications over Dynamic Ad Hoc Networks
… play a vital role in present and future wireless ad hoc networks. One of the key requirements for a successful deployment of multimedia applications in multihop wireless networks is the ability to provide an acceptable video quality, even under a highly dynamic and perhaps unfriendly (or hostile) …
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Capacity and coverage of mmWave ad hoc networks
Ad hoc networks provide a flexible, infrastructure-free means to communicate between soldiers in war zones, aid workers in disaster areas, or consumers in device-to-device (D2D) applications. Ad hoc networks, however, are stilled plagued by interference. Communication with millimeter-wave (mmWave) …
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Safety-message routing in vehicular ad hoc networks
… dissemination problem for vehicular ad hoc networks (VANETs) was investigated. Four novel techniques were contributed for the efficient and reliable routing of safety messages in the vehicular ad hoc networks. The instant-broadcast technique was proposed to improve the end-to-end …
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Securing Data Dissemination in Vehicular ad hoc Networks
Vehicular ad hoc networks (VANETs) are a subclass of mobile ad hoc networks (MANETs) in which the mobile nodes are vehicles; these vehicles are autonomous systems connected by wireless communication on a peer-to-peer basis. They are self-organized, self-configured and self-controlled …
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Providing Location Security in Vehicular Ad Hoc Networks
… is fundamental information in Vehicular Ad-hoc Networks (VANETs). Almost all VANET applications rely on location information. Therefore it is of importance to ensure location information integrity, meaning that location information is original (from the generator), correct (not bogus or …
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Road-based routing in vehicular ad hoc networks
Vehicular ad hoc networks (VANETs) can provide scalable and cost-effective solutions for applications such as traffic safety, dynamic route planning, and context-aware advertisement using short-range wireless communication. To function properly, these applications require efficient routing …
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Location based services in wireless ad hoc networks
… investigate location based services in wireless ad hoc networks from four different aspects - i) location privacy in wireless sensor networks (privacy), ii) end-to-end secure communication in randomly deployed wireless sensor networks (security), iii) quality versus latency trade-off in content …
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DNS based routing protocol in ad hoc networks
… that are interconnected by multihop wireless networks. DNS Based Routing Protocol is introduced for use in the multi-hop wireless ad hoc networks. In this protocol, each node knows the node connectivity within its reachable set; some nodes have DNS capability, which are responsible for route …
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Reliable Neighborcast Protocol for Vehicular Ad hoc Networks
… dissertation introduces a new communication paradigm, neighborcast, for vehicular ad hoc networks and proposes a new communication protocol, reliable neighborcast protocol (RNP), to implement the paradigm. Vehicular applications such as collision avoidance can benefit from allowing vehicles to …
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Situation -Aware Security for Wireless Ad Hoc Networks
"Newly emerging ad hoc networking technology has enormous potential benefit for many mission-critical applications. However, providing adequate security required for the target applications presents many new challenges due to the unique nature of ad hoc environments. Complete decentralization and …
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Protocols and Architecture for Wireless Ad Hoc Networks
… describing the design and implementation of an ad hoc networking software module, which provides certain basic services necessary for configuring and operating ad hoc networks.
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