Performance study on high data rate modulation technique of W-CDMA in multipath fading channel

Downlink transmission (base station to mobile terminal) using high data rate Mary Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) modulation schemes are considered in a Wideband-Code Division Multiple Access (W-CDMA) system. The performances of these modulation techniq...

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Main Author:	Ismail, Muhammad Najib
Format:	Thesis
Language:	English
Published:	2005
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/3213/1/MuhammadNajibIsmailMFKE2005.pdf
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id	my-utm-ep.3213
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spelling	my-utm-ep.32132018-06-26T07:56:21Z Performance study on high data rate modulation technique of W-CDMA in multipath fading channel 2005-04 Ismail, Muhammad Najib TK Electrical engineering. Electronics Nuclear engineering Downlink transmission (base station to mobile terminal) using high data rate Mary Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) modulation schemes are considered in a Wideband-Code Division Multiple Access (W-CDMA) system. The performances of these modulation techniques are evaluated when the system is subjected to a number of users as well as noise and interference in the channel. Additive White Noise Gaussian (AWGN) and multipath Rayleigh fading are considered in the channel. Computer simulation tool, MATLAB, will be used throughout the research to evaluate Bit-Error-Rate (BER) for W-CDMA system models. Two approaches are used in this simulation. They are simulations using Simulink and simulations using M files. A study of different modulation techniques is needed so that a W-CDMA system can choose suitable modulation technique to suit the channel quality, thus delivering optimum and efficient data rate to mobile terminal. It is discovered that the performance of 16-QAM is significantly degraded in AWGN and multipath Rayleigh fading channel compared to that of QPSK. Error correction coding is needed to be used in this system particularly with 16-QAM to ensure better performance of WCDMA system 2005-04 Thesis http://eprints.utm.my/id/eprint/3213/ http://eprints.utm.my/id/eprint/3213/1/MuhammadNajibIsmailMFKE2005.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ismail, Muhammad Najib Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
description	Downlink transmission (base station to mobile terminal) using high data rate Mary Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) modulation schemes are considered in a Wideband-Code Division Multiple Access (W-CDMA) system. The performances of these modulation techniques are evaluated when the system is subjected to a number of users as well as noise and interference in the channel. Additive White Noise Gaussian (AWGN) and multipath Rayleigh fading are considered in the channel. Computer simulation tool, MATLAB, will be used throughout the research to evaluate Bit-Error-Rate (BER) for W-CDMA system models. Two approaches are used in this simulation. They are simulations using Simulink and simulations using M files. A study of different modulation techniques is needed so that a W-CDMA system can choose suitable modulation technique to suit the channel quality, thus delivering optimum and efficient data rate to mobile terminal. It is discovered that the performance of 16-QAM is significantly degraded in AWGN and multipath Rayleigh fading channel compared to that of QPSK. Error correction coding is needed to be used in this system particularly with 16-QAM to ensure better performance of WCDMA system
format	Thesis
qualification_level	Master's degree
author	Ismail, Muhammad Najib
author_facet	Ismail, Muhammad Najib
author_sort	Ismail, Muhammad Najib
title	Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
title_short	Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
title_full	Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
title_fullStr	Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
title_full_unstemmed	Performance study on high data rate modulation technique of W-CDMA in multipath fading channel
title_sort	performance study on high data rate modulation technique of w-cdma in multipath fading channel
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2005
url	http://eprints.utm.my/id/eprint/3213/1/MuhammadNajibIsmailMFKE2005.pdf
_version_	1747814442165338112

Performance study on high data rate modulation technique of W-CDMA in multipath fading channel

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