Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah

Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah

In the latest development of Orthogonal Frequency Division Multiplexing (OFDM) communication system, the system performance can be distracted by the Frequency Offsets (FOs) which can demolish the orthogonality of the subcarriers, increases the Inter-Carrier Interference (ICI) and can intensely deter...

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Main Author: Abdullah, Norhayati
Format: Thesis
Language:English
Published: 2015
Subjects:
Telecommunication
Radio frequency identification systems
Online Access:https://ir.uitm.edu.my/id/eprint/15914/1/TM_NORHAYATI%20ABDULLAH%20EE%2015_5.PDF
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spelling my-uitm-ir.159142022-03-10T02:05:03Z Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah 2015 Abdullah, Norhayati Telecommunication Radio frequency identification systems In the latest development of Orthogonal Frequency Division Multiplexing (OFDM) communication system, the system performance can be distracted by the Frequency Offsets (FOs) which can demolish the orthogonality of the subcarriers, increases the Inter-Carrier Interference (ICI) and can intensely deteriorate the system performance. As a result, Intercarrier Interference Self-Cancellation (ICI-SC) has been applied in numerous OFDM systems as a simple and impressive approach to overcome ICI. The need of higher data rates and improved coverage with an efficient bandwidth has revealed the potential of the combination of multiple input multiple output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) as a powerful technique which can provide high data rates over frequency selective fading channels. ICI and maximum frequency diversity can also be achieved by manipulating the Space Time Frequency Block Codes (STFBCs) that uses spatial, time and frequency diversities which is implemented in the MIMO-OFDM system. The uncompromising frequency selective fading caused due to the multipath channel between the transmitter and the receiver and also the amount of time delay at the receiver from a signal travelling from the transmitter along different paths. This excess delay can cause both ISI to the adjacent OFDM symbols and the Inter-Carrier Interference (ICI) within the same symbol. An equalization technique is appended at the receiver to overcome ICI and ISI. Evaluation of Pair-Wise Error Probability (PEP) performance using STFBC MIMO-OFDM ICI-SC technique with one third and quarter subcarrier mapping scheme to diminish ICI due to Frequency Offsets (FOs) is achieved. Adaptive algorithms is also implemented with the specific equalizer in order to further improve the system performance. Thus, the objective of this research is to minimize ICI and ISI effects through STFBC ICI-SC subcarrier mapping scheme and equalization techniques. The simulation results expressively show that the one third method subcarrier mapping technique with Decision Feedback Equalizer (DFE) and adaptive algorithm can provide the best system performance compared to the existing subcarrier mapping methods .The results shows that by using the one-third subcarrier mapping scheme with an adaptive algorithm Normalised Least Means Square (NLMS), an efficient bandwidth can be achieved, ICI and ISI effects can be reduced with 24% of improvement compared to one-third subcarrier mapping Recursive Least Square (RLS) DFE in the MIMO-OFDM system. 2015 Thesis https://ir.uitm.edu.my/id/eprint/15914/ https://ir.uitm.edu.my/id/eprint/15914/1/TM_NORHAYATI%20ABDULLAH%20EE%2015_5.PDF text en public mphil masters Universiti Teknologi MARA Faculty of Electrical Engineering
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
topic Telecommunication
Radio frequency identification systems
spellingShingle Telecommunication
Radio frequency identification systems
Abdullah, Norhayati
Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
description In the latest development of Orthogonal Frequency Division Multiplexing (OFDM) communication system, the system performance can be distracted by the Frequency Offsets (FOs) which can demolish the orthogonality of the subcarriers, increases the Inter-Carrier Interference (ICI) and can intensely deteriorate the system performance. As a result, Intercarrier Interference Self-Cancellation (ICI-SC) has been applied in numerous OFDM systems as a simple and impressive approach to overcome ICI. The need of higher data rates and improved coverage with an efficient bandwidth has revealed the potential of the combination of multiple input multiple output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) as a powerful technique which can provide high data rates over frequency selective fading channels. ICI and maximum frequency diversity can also be achieved by manipulating the Space Time Frequency Block Codes (STFBCs) that uses spatial, time and frequency diversities which is implemented in the MIMO-OFDM system. The uncompromising frequency selective fading caused due to the multipath channel between the transmitter and the receiver and also the amount of time delay at the receiver from a signal travelling from the transmitter along different paths. This excess delay can cause both ISI to the adjacent OFDM symbols and the Inter-Carrier Interference (ICI) within the same symbol. An equalization technique is appended at the receiver to overcome ICI and ISI. Evaluation of Pair-Wise Error Probability (PEP) performance using STFBC MIMO-OFDM ICI-SC technique with one third and quarter subcarrier mapping scheme to diminish ICI due to Frequency Offsets (FOs) is achieved. Adaptive algorithms is also implemented with the specific equalizer in order to further improve the system performance. Thus, the objective of this research is to minimize ICI and ISI effects through STFBC ICI-SC subcarrier mapping scheme and equalization techniques. The simulation results expressively show that the one third method subcarrier mapping technique with Decision Feedback Equalizer (DFE) and adaptive algorithm can provide the best system performance compared to the existing subcarrier mapping methods .The results shows that by using the one-third subcarrier mapping scheme with an adaptive algorithm Normalised Least Means Square (NLMS), an efficient bandwidth can be achieved, ICI and ISI effects can be reduced with 24% of improvement compared to one-third subcarrier mapping Recursive Least Square (RLS) DFE in the MIMO-OFDM system.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Abdullah, Norhayati
author_facet Abdullah, Norhayati
author_sort Abdullah, Norhayati
title Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
title_short Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
title_full Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
title_fullStr Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
title_full_unstemmed Performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ICI-SC scheme in STFBC MIMO-OFDM system / Norhayati Abdullah
title_sort performance analysis of pair-wise error probability for 1/3 and 1/4 subcarrier mapping ici-sc scheme in stfbc mimo-ofdm system / norhayati abdullah
granting_institution Universiti Teknologi MARA
granting_department Faculty of Electrical Engineering
publishDate 2015
url https://ir.uitm.edu.my/id/eprint/15914/1/TM_NORHAYATI%20ABDULLAH%20EE%2015_5.PDF
_version_ 1783733466853015552

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