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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

Multiuser detection in TH-UWB communication systems

Hosseini, Iraj Unknown Date
No description available.
42

Single carrier block transmission in ultra-wideband communications

Wang, Yue 15 March 2010 (has links)
In this thesis, single carrier block transmission with frequency-domain equalization (SC-FDE) is proposed as an alternative physical layer solution for IEEE 802.15.3a Ultra¬wideband (UWB) communications to meet the high data rate and low complexity requirement. The performance of SC-FDE over UWB channels are analyzed, simulated and compared to that of the two currently existing physical layer solutions: the single carrier UWB using the direct-sequence (DS) technology and the multiband UWB utilizing the orthogonal frequency division complexing (OFDM). We show the superiority of SC-FDE over both IR-UWB and OFDM-UWB, especially when implementation issues such as low complexity and low power consumption are taken into consideration. Based on the proposed SC-FDE UWB, novel schemes are carried out to address the physical layer design issues. A low complexity frequency-domain channel estimation scheme is proposed. A novel time division multiple access (TDMA) scheme is proposed for high-speed SC-FDE UWB to address the multiple access issue. Furthermore, a novel transmitter pulse shaping design method is proposed to fit the FCC mask and introduce spectral nulls at the interference frequency band to limit the narrow band interference (NBI). In addition, the effects of imperfect channel estimation, carrier frequency offset (CFO) and sampling timing offset (STO) on the performance of SC-FDE over UWB channels are also investigated.
43

Real-time FPGA realization of an UWB transceiver physical layer

Lowe, Darryn W. January 2005 (has links)
Thesis (M.Eng)--University of Wollongong, 2005. / Typescript. Includes bibliographical references: p. 169-170.
44

A CMOS low noise amplifier for impulse radio ultra-wideband applications /

Soliman, Yasser Khairat. January 1900 (has links)
Thesis (M.App.Sc.) - Carleton University, 2005. / Includes bibliographical references (p. 130-135). Also available in electronic format on the Internet.
45

Dynamic bandwidth direct sequence a novel cognitive solution for ultra-wideband communications /

Zhao, Jie. January 2008 (has links)
Thesis (M.E.-Res)--University of Wollongong, 2008. / Typescript. Includes bibliographical references: leaf 69-75.
46

Multiuser detection in TH-UWB communication systems

Hosseini, Iraj. January 2009 (has links)
Thesis (M. Sc.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on Aug. 14, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science in Communications, Department of Electrical and Computer Engineering, University of Alberta." Includes bibliographical references.
47

Clustered multicarrier systems for very wideband wireless communications

Vajipeyajula, Mani Kishore. January 2005 (has links)
Thesis (M.E.E.)--University of Delaware, 2005. / Principal faculty advisor: Leonard J. Cimini, Dept. of Electrical and Computer Engineering. Includes bibliographical references.
48

High speed CMOS ADC for UWB receiver /

Lu, Dongtian. January 2007 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2007. / Includes bibliographical references (leaves 92-95). Also available in electronic version.
49

Design of high-speed SiGe HBT circuits for wideband transceivers

Lu, Yuan. January 2006 (has links)
Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2007. / Cressler, John, Committee Chair ; Laskar, Joy, Committee Member ; Papapolymerou, Ioannis, Committee Member ; Zhou, Haomin, Committee Member ; Milor, Linda, Committee Member.
50

Circuit and system design for fully integrated CMOS direct-conversion multi-band OFDM ultra-wideband receivers

Zhang, Pengbei, January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 149-154).

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