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.
Results
Showing 1 to 20 of 187 for “"multi-hop"”.
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Interpretable Multi-hop Question Answering
… to predict the correct answer. Especially for multi-hop QA, questions often permit reasoning shortcuts by which QA systems can directly locate the final answer by matching the question to a single sentence in the paragraph without complex reasoning. As a result, most QA systems have fallen …
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Gateway selection in multi-hop wireless networks
This thesis describes the implementation of MultiNAT, an application that attempts to provide the benefits of client multi-homing while requiring minimal client configuration, and the evaluation of a novel link-selection algorithm, called AvMet, that significantly outperforms earlier multi-homing …
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Opportunistic routing in multi-hop wireless networks
… routing and MAC protocol for bulk transfers in multi-hop wireless networks. ExOR exploits the broadcast nature of radios by making forwarding decisions based on which nodes receive each transmission. The spatial diversity among receivers provides each transmission multiple opportunities to make …
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Multi-hop wireless relay using Bluetooth specification
… extends the Bluetooth specification to support multi-hop wireless communication. Bluetooth is a wireless communication protocol originally designed for point-to-point communication within a small network called a piconet, where a master has centralized coordination over slave devices. The …
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Relay Selection Strategies for Multi-hop Cooperative Networks
… consider several relay selection strategies for multi-hop cooperative networks. The relay selection strategies we propose do not require a central controller (CC). Instead, the relay selection is on a hop-by-hop basis. As such, these strategies can be implemented in a distributed manner. …
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Power-aware routing in multi-hop wireless networks
… Since routing is one of the core functions of multihopnetworks like WAHNs and WMNs, significant research effort is being made to design energy-efficient and power saving routing algorithms. This thesis focuses on power-aware and energy-efficient routing in static WAHNs and WMNs that aim to …
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High-throughput routing for multi-hop wireless networks
… metric for finding high-throughput paths in multi-hop wireless networks. The ETX of a path is the expected total number of packet transmissions (including retransmissions) required to successfully deliver a packet along that path. For practical networks, paths with the minimum ETX have the …
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Range Adaptive Protocols for Wireless Multi-Hop Networks
… extended to take advantage of radios offering multi-user interference cancellation and direct-sequence spread-spectrum functionality, by encouraging multiple simultaneous connections and adaptively changing communication parameters on a per-packet basis. Through its environment characterization …
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Throughput optimization in MPR-capable multi-hop wireless networks
… layer have enabled the simultaneous reception of multiple packets by a node in wireless networks. This capability has the potential of improving the performance of multi-hop wireless networks by a logarithmic factor with respect to current technologies. However, to fully exploit multiple packet …
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Cross-layer optimizations in multi-hop ad hoc networks
… enabling each other's communication. Supporting multi-hop communication in a MANET is a challenging research area because it requires cooperation between different protocol layers (MAC, routing, transport). In particular, MAC and routing protocols could be considered mutually cooperative protocol …
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Communication-Centric Energy Conservation for Multi-Hop Wireless Networks
Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Improving accessibility and multi-hop reasoning in knowledge graphs
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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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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The effect of topology control for wireless multi-hop networks
Wireless multi-hop networks are not restricted to rural development efforts. They have found uses in the military, industry, as well as in urban areas. The focus of this study is on stationary wireless multi-hop networks whose primary purpose is the provisioning of Internet access using low cost, …
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Accurate range free localization in multi-hop wireless sensor networks
… wireless sensor networks (WSN)s nodes, only the hop-based data have been so far utilized by range free techniques, with poor-accuracy, though. In this thesis, we show that localization accuracy may importantly advantage from mutual utilization, at no cost, of the information already offered by …
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Hop-by-Hop Transport Control for Multi-Hop Wireless Networks
TCP can perform poorly in multi-hop wireless networks due to problems with contention and poor feedback from end-to-end control algorithms. This thesis explores the design of a hop-by-hop transport protocol (HxH). By allowing intermediate nodes to actively participate, the protocol can respond more …
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Design and Evaluation of Multi-Channel Multi-Hop Wireless Networks
… we first identify issues in designing a multi-channel multi-hop network, with the focus on layer-2 and layer-3 protocols. Based on the observations, we develop medium access control (MAC) and routing protocols that can utilize multiple channels with a single interface. Finally, we …
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