Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro

As the communication system evolving and enhancing, the need for high speed and reliable communication system is crucial. With the combination of multiple-input multiple-output (MIMO) communication system along orthogonal frequency division multiplexing (OFDM), a reliable high rate communication sys...

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Main Author:	Bahro, Izham Khairulfathi
Format:	Thesis
Language:	English
Published:	2015
Subjects:	Wireless communication systems Mobile communication systems Access control Wireless Internet
Online Access:	https://ir.uitm.edu.my/id/eprint/69067/1/69067.pdf
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id	my-uitm-ir.69067
record_format	uketd_dc
spelling	my-uitm-ir.690672023-03-16T04:09:03Z Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro 2015 Bahro, Izham Khairulfathi Wireless communication systems. Mobile communication systems. Access control Wireless Internet As the communication system evolving and enhancing, the need for high speed and reliable communication system is crucial. With the combination of multiple-input multiple-output (MIMO) communication system along orthogonal frequency division multiplexing (OFDM), a reliable high rate communication system can be achieved. The MIMO OFDM system with 2X2, 3x3, and 4x4 antenna configurations will use 256, 512 and 1024 QAM modulation level in the presence of multipath Rayleigh and Additive White Gaussian Noise (AWGN) channel. The performance evaluation of the system is determined in term of Bit Error Rate (BER) and Signal Energy to Noise Power Ratio (Eb/No). The MIMO OFDM system with Least Square channel estimation will be designed and simulated using MATLAB where the results will then be analyzed. From the results obtained, it can be said that as the QAM level increased the BER will increase too. Besides that, the performance of the system will improves as the number of transmit and receive antennas increase. It is known that the system performance of 4x4 antennas using 1024 QAM is the same with the system of 2x2 antennas using 256 QAM. However, the data rate increase is 40% for 1024 QAM. In addition, the great performance showed by the MIMO-OFDM system is greatly enhanced by the estimation technique used which is Least Square channel estimation. Least Square channel estimation accurately recovered the distorted signal through multipath fading channel thus improve the performance of the MIMO-OFDM system. 2015 Thesis https://ir.uitm.edu.my/id/eprint/69067/ https://ir.uitm.edu.my/id/eprint/69067/1/69067.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Sarnin, Suzi Seroja
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Sarnin, Suzi Seroja
topic	Wireless communication systems Mobile communication systems Access control Wireless Internet
spellingShingle	Wireless communication systems Mobile communication systems Access control Wireless Internet Bahro, Izham Khairulfathi Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
description	As the communication system evolving and enhancing, the need for high speed and reliable communication system is crucial. With the combination of multiple-input multiple-output (MIMO) communication system along orthogonal frequency division multiplexing (OFDM), a reliable high rate communication system can be achieved. The MIMO OFDM system with 2X2, 3x3, and 4x4 antenna configurations will use 256, 512 and 1024 QAM modulation level in the presence of multipath Rayleigh and Additive White Gaussian Noise (AWGN) channel. The performance evaluation of the system is determined in term of Bit Error Rate (BER) and Signal Energy to Noise Power Ratio (Eb/No). The MIMO OFDM system with Least Square channel estimation will be designed and simulated using MATLAB where the results will then be analyzed. From the results obtained, it can be said that as the QAM level increased the BER will increase too. Besides that, the performance of the system will improves as the number of transmit and receive antennas increase. It is known that the system performance of 4x4 antennas using 1024 QAM is the same with the system of 2x2 antennas using 256 QAM. However, the data rate increase is 40% for 1024 QAM. In addition, the great performance showed by the MIMO-OFDM system is greatly enhanced by the estimation technique used which is Least Square channel estimation. Least Square channel estimation accurately recovered the distorted signal through multipath fading channel thus improve the performance of the MIMO-OFDM system.
format	Thesis
qualification_level	Bachelor degree
author	Bahro, Izham Khairulfathi
author_facet	Bahro, Izham Khairulfathi
author_sort	Bahro, Izham Khairulfathi
title	Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
title_short	Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
title_full	Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
title_fullStr	Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
title_full_unstemmed	Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro
title_sort	performance of least square based channel estimation for high order modulation qam-ofdm-mimo in the presence of multipath fading channel / izham khairulfathi bahro
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2015
url	https://ir.uitm.edu.my/id/eprint/69067/1/69067.pdf
_version_	1783735838282088448

Performance of least square based channel estimation for high order modulation QAM-OFDM-MIMO in the presence of multipath fading channel / Izham Khairulfathi Bahro

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