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 25 for “"Wireless nodes"”.
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Dynamic channel selection for meshed wireless personal area network
Wireless Personal Area Network refers to the interconnection among devices within a limited range of meters. The need to extend the coverage area of the WPAN without increasing the transmission power and response to the suddenly user increase in the network is one of the primary motivations that …
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Ultra-Miniaturized, Secure Wake-Up Receiver Based on THz Carrier Wave
… are developing small-scale, massively deployable wireless nodes for various applications that can work together to collect information and build large networks. These miniaturized wireless nodes require various functionalities, including communication, sensing, actuation, and energy harvesting. …
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Cooperation enforcement in ad-hoc wireless networks
Ad-hoc networks consist of a system of wireless nodes that can freely and dynamically self-organise into a working network topology. This allows people to internetwork seamlessly in areas that have no preexisting communication infrastructure. Nodes are expected to forward the traffic of other nodes …
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Instrumented tools and objects : design, algorithms, and applications to assembly tasks
… an instrumented tool system comprised of wireless nodes and sensor systems to facilitate distributed robotic assembly tasks. This robotic system was deployed on two separate robotic assembly scenarios: one scenario used programmable autonomous beacons to facilitate precise localization of …
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Wireless sensor network for smart street lighting
… by detecting traffic and controlling lights with wireless radio frequency modules. The system is designed to be compatible with preexisting lighting infrastructure and is easy to install and maintain. Top down design approach is used in the creation of the system, the overall architecture is …
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Design of Sensor Networks for Detection Applications via Large -Deviation Theory
… networks are envisioned to contain legions of wireless nodes. As such, asymptotic regimes where the number of nodes becomes large are important tools in identifying design guidelines for future sensor systems. This work presents interesting applications of large-deviation theory and asymptotic …
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Design of a wireless mesh sensor network for a housing community
Wireless mesh sensor networks are typically a cluster of intelligent radio nodes which transfer data between each other directly in a hop, or indirectly through two or more hops via adjacent nodes. These nodes contain one or more sensors. Wireless mesh sensor networks provide a solution in …
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Rate selection for MIMO links
… technology has become more prevalent in modern wireless communication systems. MIMO systems take advantage of multiple antennas at the transmitters and receivers, as well as multipath propagation, to provide more reliable, higher capacity wireless links. As a result, these links can support a …
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Impact of processing energy on the capacity of wireless channels
… is a capital issue in the study of mobile wireless nodes owing to constraints on their battery size and weight. A careful examination of the power consumption in low-power nodes shows that, as the total power available to such nodes decreases, the ratio of power consumed for transmission …
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Enhancing spectrum utilization through cooperation and cognition in wireless systems
We have seen a proliferation of wireless technologies and devices in recent years. The resulting explosion of wireless demand has put immense pressure on available spectrum. Improving spectrum utilization is therefore necessary to enable wireless networks to keep up with burgeoning demand. This …
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Mobility Pattern Aware Routing in Mobile Ad Hoc Networks
A mobile ad hoc network is a collection of wireless nodes, all of which may be mobile, that dynamically create a wireless network amongst them without using any infrastructure. Ad hoc wireless networks come into being solely by peer-to-peer interactions among their constituent mobile nodes, and it …
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Range Adaptive Protocols for Wireless Multi-Hop Networks
… have significantly improved the performance of wireless links. Wireless mobile ad hoc networks, however, typically only take limited advantage of these enhancements. In this research, the medium access control protocol and ad hoc routing protocol are extended to take advantage of radios offering …
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Evaluating the effect of quality of service mechanisms in power-constrained wireless mesh networks
Wireless Mesh Network (WMN) is a collection of wireless nodes which can dynamically communicate with one another in multi-hop manner. This network has received considerable attention as a means to connectivity in community and commercial entities. The easy deployment and self-management …
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CRSN Energy-Efficient Mechanism Based on Dynamic Spectrum Access and Asynchronous Sleep-Wake Scheduling
… Sensor Network (CRSN) is considered as a viable wireless networking paradigm solution to address the issues of spectrum underutilization and uncontrollable interferences in Wireless Sensor Network (WSN) due to wireless sensor devices proliferation. However, CRSN itself is the technology is faced …
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Cluster based jamming and countermeasures for wireless sensor network MAC protocols
A wireless sensor network (WSN) is a collection of wireless nodes, usually with limited computing resources and available energy. The medium access control layer (MAC layer) directly guides the radio hardware and manages access to the radio spectrum in controlled way. A top priority for a WSN MAC …
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Resource Optimization of SOA-Technologies in Embedded Networks
… can be very heterogeneous, containing wired and wireless nodes with different kinds of resources and service capabilities, such as sensing, acting, and processing. Driven by new opportunities and business models, embedded networks will play an ever more important role in the future, …
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Traffic-aware channel allocation and routing in multichannel, multi-radio wireless networks
Modern day wireless network applications exhibit varying service demands to satisfy user requirements, while differing in the nature of traffic they generate. Future wireless networks should, therefore, be capable of adapting to the heterogeneous traffic characteristics, by efficiently utilizing …
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Evaluation of Transport Layer Protocols for wireless multi-hop networks
Wireless Multi-hop Network (WMN) is a collection of wireless nodes that dynamically form a network without an infrastructure support. It is a promising technology for several interesting applications such as broadband home networking, community and neighborhood networks, coordinated management, …
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A clean slate approach to secure wireless networking
Traditionally, wireless network protocols have been developed for performance. Subsequently, as attacks are identified, patches or defenses have been developed. This has led to an ``arms race,'' where one is never confident about what other vulnerabilities may be exposed in the future. We seek to …
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Cryptographic Key Distribution In Wireless Sensor Networks Using Bilinear Pairings
It is envisaged that the use of cheap and tiny wireless sensors will soon bring a third wave of evolution in computing systems. Billions of wireless senor nodes will provide a bridge between information systems and the physical world. Wireless nodes deployed around the globe will monitor the …
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