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Optimization of transmitted-reference receivers in the ultra-wide bandwidth system

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Wang, Shuyi (2011) Optimization of transmitted-reference receivers in the ultra-wide bandwidth system. PhD thesis, University of Warwick.

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Official URL: http://webcat.warwick.ac.uk/record=b2565692~S1

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Abstract

This thesis contributes the research and development of novel receiver
optimization approaches conducted in ultra-wide bandwidth (UWB) systems.
The ultimate goal of the improved receiver technology is to simplify the receiver
structures at the cost of a tolerable performance degradation or improve the
receiver performances at the cost of a tolerable complexity. Recently, UWB
technology has become more and more attractive due to its increased performance.
An advanced scheme that can provide a further improvement is
strongly recommended and highly demanded. This research project focuses
on the design of outstanding receivers suitable for the UWB system with
transmitted-reference signaling. Two types of improved receivers are investigated.
The first one is based on the optimization of inter-pulse time delay Td
in the traditional transmitted-reference receivers where one data pulse is transmitted
Td seconds delay after one reference pulse in a bit duration. The second
one is based on the joint optimization of the number of reference symbols
and the integration interval length in the generalized transmitted-reference receivers where Nd data symbols are transmitted after Nr reference symbols
in a data packet. For both improved receivers, simulation and theoretical approaches
are used to provide the optimization results. The numerical results
show that the improved receivers by using different optimization approaches
outperform the non-improved receivers significantly for most practical cases.
An up to 4.2dB performance improvement can be achieved consequently.
The principal conclusion from this thesis is that all the optimization
schemes presented herein can be successfully applied to the design of receivers
in the UWB transmitted-reference systems that the data decision can be obtained
by thresholding the correlator output of the reference information with
the data information.

Item Type: Thesis (PhD)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Library of Congress Subject Headings (LCSH): Wireless communication systems -- Design
Official Date: November 2011
Dates:
DateEvent
November 2011Submitted
Institution: University of Warwick
Theses Department: School of Engineering
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Chen, Yunfei ; Leeson, Mark S., 1963-
Extent: xiv, 128 leaves : charts
Language: eng

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