Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi

MIMO-OFDMA offers significant high data rates transfer without increasing the bandwidth or transmit power. By adopting diversity coding such as Space Time coding (STC), Space Frequency Coding (SFC), Space Time Frequency Base Coding (STFBC), the major challenge of transmitting information over a long...

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Main Author:	Mat Khairi, Nur Farahana
Format:	Thesis
Language:	English
Published:	2014
Online Access:	https://ir.uitm.edu.my/id/eprint/80628/1/80628.pdf
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id	my-uitm-ir.80628
record_format	uketd_dc
spelling	my-uitm-ir.806282023-08-21T09:12:46Z Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi 2014 Mat Khairi, Nur Farahana MIMO-OFDMA offers significant high data rates transfer without increasing the bandwidth or transmit power. By adopting diversity coding such as Space Time coding (STC), Space Frequency Coding (SFC), Space Time Frequency Base Coding (STFBC), the major challenge of transmitting information over a long distances can be improved in terms of reliability and security of the data due to ISI and ICI. Low Density Parity Check which is introduced by Gallager in 1962 has attracted much attention to the needs of efficient and reliable coding theory in digital data communication system. In this paper together with STFBC, the simulation of LDPC under 4, 16 and 64 QAM is conducted in 2x2 MMO-OFDMA over Additive White Gaussian Noise (AWGN) and Raleigh fading channel. The propose system is analyzed based on PAPR and BER with signal to noise ratio (SNR). The simulation using Matlab, shows the PAPR comparison, which Daoud LDPC works better in Rayleigh fading channel while in digital modulations the system outperforms with 64-QAM . The performance of LDPC between conventional LDPC and Daoud LDPC are being compared and it is further prove that with STFBC diversity Daoud LDPC achieved a slight improvement in MEMO OFDMA[l]. 2014 Thesis https://ir.uitm.edu.my/id/eprint/80628/ https://ir.uitm.edu.my/id/eprint/80628/1/80628.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Idris, Azlina
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Idris, Azlina
description	MIMO-OFDMA offers significant high data rates transfer without increasing the bandwidth or transmit power. By adopting diversity coding such as Space Time coding (STC), Space Frequency Coding (SFC), Space Time Frequency Base Coding (STFBC), the major challenge of transmitting information over a long distances can be improved in terms of reliability and security of the data due to ISI and ICI. Low Density Parity Check which is introduced by Gallager in 1962 has attracted much attention to the needs of efficient and reliable coding theory in digital data communication system. In this paper together with STFBC, the simulation of LDPC under 4, 16 and 64 QAM is conducted in 2x2 MMO-OFDMA over Additive White Gaussian Noise (AWGN) and Raleigh fading channel. The propose system is analyzed based on PAPR and BER with signal to noise ratio (SNR). The simulation using Matlab, shows the PAPR comparison, which Daoud LDPC works better in Rayleigh fading channel while in digital modulations the system outperforms with 64-QAM . The performance of LDPC between conventional LDPC and Daoud LDPC are being compared and it is further prove that with STFBC diversity Daoud LDPC achieved a slight improvement in MEMO OFDMA[l].
format	Thesis
qualification_level	Master's degree
author	Mat Khairi, Nur Farahana
spellingShingle	Mat Khairi, Nur Farahana Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
author_facet	Mat Khairi, Nur Farahana
author_sort	Mat Khairi, Nur Farahana
title	Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
title_short	Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
title_full	Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
title_fullStr	Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
title_full_unstemmed	Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi
title_sort	reduction of papr in mimo-ofdma system by using daoud technique ldpc codes / nur farahana mat khairi
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2014
url	https://ir.uitm.edu.my/id/eprint/80628/1/80628.pdf
_version_	1783736303299330048

Reduction of PAPR in MIMO-OFDMA system by using Daoud technique LDPC codes / Nur Farahana Mat Khairi

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