Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)

Mobile communication has developed very during the last few years. Due to this fast development in this field, subscribers of today are enjoying the use of many applications ranging from data, voice, audio to video irrespective of the place where they are stationed or moving about. WiMAX technology...

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Main Author:	Ganan, Imad Alhadi Omar
Format:	Thesis
Language:	eng eng
Published:	2010
Subjects:	TK5101-6720 Telecommunication
Online Access:	https://etd.uum.edu.my/2336/1/Imad_Alhadi_Omar_Ganan.pdf https://etd.uum.edu.my/2336/2/1.Imad_Alhadi_Omar_Ganan.pdf
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id	my-uum-etd.2336
record_format	uketd_dc
spelling	my-uum-etd.23362013-07-24T12:15:30Z Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e) 2010 Ganan, Imad Alhadi Omar Sheik Osman, Wan Rozaini Mohd Zaini, Khuzairi College of Arts and Sciences (CAS) College of Arts and Sciences TK5101-6720 Telecommunication Mobile communication has developed very during the last few years. Due to this fast development in this field, subscribers of today are enjoying the use of many applications ranging from data, voice, audio to video irrespective of the place where they are stationed or moving about. WiMAX technology is fast capturing the market in the field of mobile broadband access. WiMAX uses Orthogonal Frequency Division Multiple Access (OFDMA) at the physical layer. WiMAX uses an adaptive modulation technique to modulate the signal prior to transmitting it. Under adaptive modulation, BPSK, QPSK, 16-QAM and 64 QAM are used for modulating the data depending on the channel conditions. Cyclic Prefix is used to improve the quality of the signal under hostile environments especially Rayleigh fading. Cyclic prefix adds bits to the start and end of data stream to spread the signal. The receiver removes the bits added prior to further processing of the signal. Cyclic prefixing improves the error performance of signals by minimizing Inter Symbol Interference (ISI). This study focused on the performance of the WiMAX system in terms of Bit Error Rate (BER), Signal to Noise Ratio (SNR), Power Spectral Density (PSD) and Probability of Error (Pe). Two models namely one without the Cyclic Prefix and the other with the Cyclic prefix were built to study these parameters. On analyzing the results, it was observed that adding cyclic prefix improved the error performance marginally especially when the signal is BPSK modulated. The results of BER vs SNR and Pe vs SNR are different as Pe is the expected value of BER where BER approaches Pe when the simulation is run for a long period of time and the BER is very high. Other situations, Pe and BER show different results under same conditions. Finally based on the evaluation and conclusion, recommendations were made for further work. 2010 Thesis https://etd.uum.edu.my/2336/ https://etd.uum.edu.my/2336/1/Imad_Alhadi_Omar_Ganan.pdf application/pdf eng validuser https://etd.uum.edu.my/2336/2/1.Imad_Alhadi_Omar_Ganan.pdf application/pdf eng public http://lintas.uum.edu.my:8080/elmu/index.jsp?module=webopac-l&action=fullDisplayRetriever.jsp&szMaterialNo=0000764995 masters masters Universiti Utara Malaysia
institution	Universiti Utara Malaysia
collection	UUM ETD
language	eng eng
advisor	Sheik Osman, Wan Rozaini Mohd Zaini, Khuzairi
topic	TK5101-6720 Telecommunication
spellingShingle	TK5101-6720 Telecommunication Ganan, Imad Alhadi Omar Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
description	Mobile communication has developed very during the last few years. Due to this fast development in this field, subscribers of today are enjoying the use of many applications ranging from data, voice, audio to video irrespective of the place where they are stationed or moving about. WiMAX technology is fast capturing the market in the field of mobile broadband access. WiMAX uses Orthogonal Frequency Division Multiple Access (OFDMA) at the physical layer. WiMAX uses an adaptive modulation technique to modulate the signal prior to transmitting it. Under adaptive modulation, BPSK, QPSK, 16-QAM and 64 QAM are used for modulating the data depending on the channel conditions. Cyclic Prefix is used to improve the quality of the signal under hostile environments especially Rayleigh fading. Cyclic prefix adds bits to the start and end of data stream to spread the signal. The receiver removes the bits added prior to further processing of the signal. Cyclic prefixing improves the error performance of signals by minimizing Inter Symbol Interference (ISI). This study focused on the performance of the WiMAX system in terms of Bit Error Rate (BER), Signal to Noise Ratio (SNR), Power Spectral Density (PSD) and Probability of Error (Pe). Two models namely one without the Cyclic Prefix and the other with the Cyclic prefix were built to study these parameters. On analyzing the results, it was observed that adding cyclic prefix improved the error performance marginally especially when the signal is BPSK modulated. The results of BER vs SNR and Pe vs SNR are different as Pe is the expected value of BER where BER approaches Pe when the simulation is run for a long period of time and the BER is very high. Other situations, Pe and BER show different results under same conditions. Finally based on the evaluation and conclusion, recommendations were made for further work.
format	Thesis
qualification_name	masters
qualification_level	Master's degree
author	Ganan, Imad Alhadi Omar
author_facet	Ganan, Imad Alhadi Omar
author_sort	Ganan, Imad Alhadi Omar
title	Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
title_short	Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
title_full	Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
title_fullStr	Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
title_full_unstemmed	Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)
title_sort	performance evaluation of ofdm and modulation techniques in mobile wimax (ieee 802.16e)
granting_institution	Universiti Utara Malaysia
granting_department	College of Arts and Sciences (CAS)
publishDate	2010
url	https://etd.uum.edu.my/2336/1/Imad_Alhadi_Omar_Ganan.pdf https://etd.uum.edu.my/2336/2/1.Imad_Alhadi_Omar_Ganan.pdf
_version_	1747827320485314560

Performance Evaluation of OFDM and Modulation Techniques in Mobile WiMAX (IEEE 802.16e)

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