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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

A broadband infrastructure for ad hoc networks with optical wireless

Mahdy, Ahmed M. January 2005 (has links) (PDF)
Thesis (Ph.D.)--University of Nebraska--Lincoln, 2004. / PDF text: vii, 140 leaves dissertation : ill. (some col.). Includes bibliographical references.
42

Predictable CPU bandwidth management framework for next-generation operating systems /

Guo, Xingang, January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 112-119). Available also in a digital version from Dissertation Abstracts.
43

Optimal flow control and bandwidth allocation in multiservice networks : decentralized approaches /

Rhee, Seung Hyong, January 1999 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1999. / Vita. Includes bibliographical references (leaves 124-129). Available also in a digital version from Dissertation Abstracts.
44

Interface assignment, bandwidth allocation and scheduling for wireless mesh networks /

Wang, Jun. January 2009 (has links) (PDF)
Thesis (Ph.D.)--City University of Hong Kong, 2009. / "Submitted to Department of Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy." Includes bibliographical references (leaves [104]-116)
45

Distance measurement error modeling for time-of-arrival based indoor geolocation

Alavi, Bardia. January 2006 (has links)
Dissertation (Ph.D.)--Worcester Polytechnic Institute. / Keywords: Ranging Error, Ranging, Positioning, Indoor Geolocation, Distance Measurement Error. Includes bibliographical references (p.168-171).
46

A selective approach to bandwidth overbooking /

Huang, Feng, January 2006 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Computer Science, 2006. / Includes bibliographical references (p. 38-39).
47

Performance analysis and optimization for MAC-layer IEEE 802.16e power saving mechanism /

Kong, Lei. January 2007 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 86-92). Also available in electronic version.
48

Wideband beamforming employing fully spatial signal processing /

Uthansakul, Monthippa. January 2006 (has links)
Thesis (Ph.D.) - University of Queensland, 2006. / Includes bibliography.
49

State-space approaches to ultra-wideband Doppler processing

Holl, David J. January 2007 (has links)
Dissertation (Ph.D.) -- Worcester Polytechnic Institute. Abstract: National security needs dictate the development of new radar systems capable of identifying and tracking exoatmospheric threats to aid our defense. These new radar systems feature reduced noise floors, electronic beam steering, and ultra-wide bandwidths, all of which facilitate threat discrimination. However, in order to identify missile attributes such as RF reflectivity, distance, and velocity, many existing processing algorithms rely upon narrow bandwidth assumptions that break down with increased signal bandwidth. We present a fresh investigation into these algorithms for removing bandwidth limitations and propose novel state-space and direct-data factoring formulations such as: the multidimensional extension to the Eigensystem Realization Algorithm; employing state-space models in place of interpolation to obtain a form which admits a separation and isolation of solution components; and side-stepping the joint diagonalization of state transition matrices, which commonly plagues methods like multidimensional ESPRIT. We then benchmark our approaches and relate the outcomes to the Cramer-Rao bound for the case of one and two adjacent reflectors to validate their conceptual design and identify those techniques that compare favorably to or improve upon existing practices. / Keywords: State-space; Super resolution; Doppler; Direction of arrival; DoA; Singular value; SVDl; DSS. . Includes bibliographical references (leaves 86-91).
50

An analysis of community-led superfast broadband initiatives in the UK and the potential for resilience

Ashmore, Fiona Helena January 2015 (has links)
Despite interest from policymakers and the telecommunications sector to deliver superfast broadband to the whole of the UK, rural areas remain underserved, decreasing their ability to benefit from broadband-enabled services. Public intervention, primarily structured as national subsidies, is active across the UK to respond to this rural market failure. Complementing such practices are local-level strategies framed as community-led broadband initiatives. Their inclusion within wider superfast broadband installation strategies has not yet been examined. This doctoral research examines two of these initiatives, their structure and impact on the community to develop an understanding of their potential as replicable rural broadband delivery mechanisms. I analyse both the process of installing superfast broadband technology from community-led perspective and the subsequent engagement with superfast broadband through a qualitative longitudinal approach. A conceptual framework of 'social resilience' is developed as a contemporary analytical tool for examining these individual and community processes. The findings reveal an inherent complexity to rural community-led broadband provision. Community-led broadband reflects a 'localism' development approach, and this process has strengthened local rural identity. Following the adoption of superfast broadband, rural users experienced a growth in digital knowledge and individual resilience. However, the initiatives themselves are often discussed as 'separate from', or incompatible with, the telecommunications industry, as well as sitting outside the scope of current government interventions. In doing so, barriers to external networking and extra-local partnerships are built, limiting the opportunities for community-led broadband networks to become a substantive part of rural broadband delivery across the UK. Throughout the thesis, an understanding of these various tensions, impacting the success, use and replicability of rural community-led broadband, is developed and community-led broadband is shown to be another example of uneven rural development. I conclude by making recommendations for future digital policy interventions in the UK.

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