Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems

The ultra-wideband (UWB) technology in the present and future is considered as one of the wide promising wireless technologies. For this reason, there are many indoor short range wireless applications such as mobile devices, laptops, scanners, printers, and flash drives are suitable in use. These...

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Main Author:	Rashid, Ali Fayyadh
Format:	Thesis
Language:	English
Subjects:	Ultra wideband (UWB) Wireless technologies Antennas Antennas > Design and construction Rake receivers Ultra wideband antenna
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/1/p.1-24..pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/2/Full%20Text.pdf
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id	my-unimap-59812
record_format	uketd_dc
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Assoc. Prof. Dr. Mohd Malek Abd Malek
topic	Ultra wideband (UWB) Wireless technologies Antennas Antennas -- Design and construction Rake receivers Ultra wideband antenna
spellingShingle	Ultra wideband (UWB) Wireless technologies Antennas Antennas -- Design and construction Rake receivers Ultra wideband antenna Rashid, Ali Fayyadh Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
description	The ultra-wideband (UWB) technology in the present and future is considered as one of the wide promising wireless technologies. For this reason, there are many indoor short range wireless applications such as mobile devices, laptops, scanners, printers, and flash drives are suitable in use. These devices are going to be miniaturized all over the world to be lightweight for carrying and low cost purposes. This characteristic increases the real demand on designing small size UWB systems. In this thesis, five UWB antenna designs and five UWB rake-receiver structures are proposed to cover the entire UWB frequency range (3.1-10.6 GHz) as defined by Federal Communication Commission (FCC) that consequently provides many challenges in the wireless communication area including antenna design and receiver scheme. These proposed antennas have small sizes and improved gain and radiation efficiency compared with the literature ones and the performances are analyzed under several antenna parameters to guarantee that the transmitted signal will be correctly recovered at the receiver end. The small antenna designs are low profile printed patch with planar ground plane antennas that satisfy UWB technology requirements and they are namely: bird feet-shaped patch antenna, planar finger-shaped patch antenna, rake-shaped patch antenna, slotted and notched rectangular patch antenna, and spade-shaped patch antenna. The designed antennas have compact sizes of 1.575 x 40 x 35 mm3, 1.575 x 30 x 28 mm3, 1.575 x 30 x 30 mm3, 1.575 x 30 x 26 mm3, and 1.575 x 30 x 28 mm3; and cover the following frequency bands 3.1-12 GHz, 3.5-12 GHz, 3-12 GHz, 3.3-14 GHz, and 3.5-12 GHz; respectively. The substrate material used is Taconic TLY-5 to reduce the cost of antenna. It has demonstrated that the simulation results are agreed with the measurement results of the proposed antennas which are suitable for UWB wireless systems including ultra-wide bandwidth, return loss less than -10 dB over this bandwidth, omni-directional radiation patterns, high surface current distribution, high gain and very good radiation efficiency. The other part of this thesis focuses on the miniaturizing the rake-receiver by reducing the correlators used and obtain improved system performance. This improvement led to increase the UWB promising ability to provide high data rate at low power consumption (-41.3 dBm/MHz). Rake receivers suitable for resolvable multi-path components (MPCs) with multi-path techniques to provide diversity and to capture as much energy as possible from the received signals. Five rake-receiver structures of four fingers each are proposed with selective and partial maximal ratio combining (MRC) techniques and they are namely: symbol sign distribution rake-receiver, signal sign separation MRC rake-receiver, demodulation rake-receiver, adaptive filter of M-max partial update recursive least square (RLS) algorithm rake-receiver, and minimum mean square error (MMSE) equalized rake-receiver. These five rake-receiver structures were all simulated by using MATLAB software to indicate that interferences and noises are effectively suppressed by reducing the bit error rate (BER) of UWB wireless communication systems especially at 0 dB signal to noise ratio (SNR). The simulation results show the mitigating of error bit probability of selective and partial rake receivers on standard IEEE 802.15.3a channel models (CM1, CM2, CM3, and CM4) for different number of users.
format	Thesis
author	Rashid, Ali Fayyadh
author_facet	Rashid, Ali Fayyadh
author_sort	Rashid, Ali Fayyadh
title	Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
title_short	Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
title_full	Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
title_fullStr	Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
title_full_unstemmed	Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems
title_sort	development of enhanced ultra wideband antenna designs and rake receivers for indoor wireless systems
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Computer and Communication Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/1/p.1-24..pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/2/Full%20Text.pdf
_version_	1747836838666567680
spelling	my-unimap-598122019-05-10T03:19:30Z Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems Rashid, Ali Fayyadh Assoc. Prof. Dr. Mohd Malek Abd Malek The ultra-wideband (UWB) technology in the present and future is considered as one of the wide promising wireless technologies. For this reason, there are many indoor short range wireless applications such as mobile devices, laptops, scanners, printers, and flash drives are suitable in use. These devices are going to be miniaturized all over the world to be lightweight for carrying and low cost purposes. This characteristic increases the real demand on designing small size UWB systems. In this thesis, five UWB antenna designs and five UWB rake-receiver structures are proposed to cover the entire UWB frequency range (3.1-10.6 GHz) as defined by Federal Communication Commission (FCC) that consequently provides many challenges in the wireless communication area including antenna design and receiver scheme. These proposed antennas have small sizes and improved gain and radiation efficiency compared with the literature ones and the performances are analyzed under several antenna parameters to guarantee that the transmitted signal will be correctly recovered at the receiver end. The small antenna designs are low profile printed patch with planar ground plane antennas that satisfy UWB technology requirements and they are namely: bird feet-shaped patch antenna, planar finger-shaped patch antenna, rake-shaped patch antenna, slotted and notched rectangular patch antenna, and spade-shaped patch antenna. The designed antennas have compact sizes of 1.575 x 40 x 35 mm3, 1.575 x 30 x 28 mm3, 1.575 x 30 x 30 mm3, 1.575 x 30 x 26 mm3, and 1.575 x 30 x 28 mm3; and cover the following frequency bands 3.1-12 GHz, 3.5-12 GHz, 3-12 GHz, 3.3-14 GHz, and 3.5-12 GHz; respectively. The substrate material used is Taconic TLY-5 to reduce the cost of antenna. It has demonstrated that the simulation results are agreed with the measurement results of the proposed antennas which are suitable for UWB wireless systems including ultra-wide bandwidth, return loss less than -10 dB over this bandwidth, omni-directional radiation patterns, high surface current distribution, high gain and very good radiation efficiency. The other part of this thesis focuses on the miniaturizing the rake-receiver by reducing the correlators used and obtain improved system performance. This improvement led to increase the UWB promising ability to provide high data rate at low power consumption (-41.3 dBm/MHz). Rake receivers suitable for resolvable multi-path components (MPCs) with multi-path techniques to provide diversity and to capture as much energy as possible from the received signals. Five rake-receiver structures of four fingers each are proposed with selective and partial maximal ratio combining (MRC) techniques and they are namely: symbol sign distribution rake-receiver, signal sign separation MRC rake-receiver, demodulation rake-receiver, adaptive filter of M-max partial update recursive least square (RLS) algorithm rake-receiver, and minimum mean square error (MMSE) equalized rake-receiver. These five rake-receiver structures were all simulated by using MATLAB software to indicate that interferences and noises are effectively suppressed by reducing the bit error rate (BER) of UWB wireless communication systems especially at 0 dB signal to noise ratio (SNR). The simulation results show the mitigating of error bit probability of selective and partial rake receivers on standard IEEE 802.15.3a channel models (CM1, CM2, CM3, and CM4) for different number of users. Universiti Malaysia Perlis (UniMAP) 2014 Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/59812 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/1/p.1-24..pdf 6c74efe9757b6b3a393c5fece874422f http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/2/Full%20Text.pdf 1e7da84ad0b09cf3d0e3acea311982fa http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/59812/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Ultra wideband (UWB) Wireless technologies Antennas Antennas -- Design and construction Rake receivers Ultra wideband antenna School of Computer and Communication Engineering

Development of Enhanced Ultra Wideband Antenna designs and Rake Receivers for Indoor Wireless Systems

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