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 31 for “"Multi-hop wireless networks"”.
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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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Power-aware routing in multi-hop wireless networks
Wireless ad hoc networks (WAHNs) are a class of wireless networks that<br/>do no rely on a pre-existing infrastructure. Due to the infrastructure-less<br/>nature of WAHNs, the nodes themselves act as routers. A wireless mesh<br/>network (WMN) is a special type of WAHN that consists of a …
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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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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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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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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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On Programmable Control and Optimization for Multi-Hop Wireless Networks
Traditionally, achieving good performance for a multi-hop wireless network is known to be difficult. The main approach to control the operation of such a network relies on a distributed paradigm, assuming that a centralized approach is not feasible. Relying on a distributed paradigm could be …
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Access Disparity Modeling and Fairness Provisioning in Multi-Hop Wireless Networks
… problem, in terms of throughput and delay, in wireless local area networks. This is mainly due to the physical characteristics of the underlying communication channel including signal quality degradation caused by distance, fading, noise, interference, multi-path reflection, attenuation, and …
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Energy-efficient multi-criteria packet forwarding in multi-hop wireless networks
Reliable multi-hop packet forwarding is an important requirement for the implementation of realistic large-scale wireless ad-hoc networks. However, packet forwarding methods based on a single criterion, such as the traditional greedy geographic forwarding, are not sufficient in most realistic …
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Capacity Characterization of Multi-Hop Wireless Networks- A Cross Layer Approach
A fundamental problem in multi-hop wireless networks is to estimate their throughout capacity. The problem can be informally stated as follows: given a multi-hop wireless network and a set of source destination pairs, determine the maximum rate r at which data can be transmitted between each source …
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Using routing information to improve MAC performance in multi-hop wireless networks
As wireless communication technology becomes increasingly available, multi-hop wireless networks such as wireless sensor networks and wireless mesh networks are receiving substantial attention from both academic and industrial efforts. However, traditional contention-based wireless MAC protocols …
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Multi-layer traffic engineering framework for inter-working multi-hop wireless networks
The interworking of multi-hop wireless networks can conveniently provide ubiquitous seamless service and continual access for network users. Ubiquity can be achieved through multi-technology mobile terminals (nodes), which enables network users to access any available network. In addition, such …
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Design, Analysis and Empirical Evaluation of Power Management in Multi-Hop Wireless Networks
… set of solutions to power management in multi-hop wireless networks from protocol design, performance analysis to empirical evaluation. The main objective is to achieve energy conservation with moderate and controllable performance degradation. We first propose an on-demand power …
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Wireless Cooperative Communication and Networking
… This paper focuses cooperative scheme in multi-hop wireless networks. The bit error rate probability is analyzed. The comparison among the proposed scheme and the conventional scheme is made through simulation and soft-define radio based experiments. Results show that the proposed scheme …
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Providing fairness and maximising throughput in 802.11 wireless mesh network.
… two questions: how to provide fairness in 802.11 wireless mesh networks and how to maximize the overall throughput in an distributed way. Fairness and efficiency are two fundamental issues in wireless networks, which are widely researched in both wired and wireless networks. We consider 802.11 …
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A new localized approach to distributed fair scheduling in multihop wireless networks
… criteria for medium access control protocol in multi-hop wireless networks. Fairness is a complex problem due to its many dimensions that include consideration of location-dependent contention, spatial reuse of channels, and desire to achieve fully distributed scheduling in the wireless …
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Cross-layer design of random access wireless networks
Interference is one of the foremost problems in wireless communication which leads to various unique design challenges for wireless networks. Wireless medium access control (MAC) has to be specifically designed to resolve contention in the presence of interference. As a result, an important …
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