MIMO-OFDM Systems Performance Enhancement Based Peaks Detection Algorithm
Dublin Core
Title
MIMO-OFDM Systems Performance Enhancement Based Peaks Detection Algorithm
Subject
MIMO
OFDM
Peak-to-Average Power Ratio
wavelet
Eigen vectors component.
Description
This work proposes a new algorithm to enhance the performance of the speaker verification over the communication systems based Multiple-Input Multiple-Output (MIMO) - Orthogonal Frequency Division Multiplexing (OFDM) techniques. The algorithm mainly tackles and overcomes the effect of the high Peak-to-Average Power Ratio problem that is found in OFDM systems, MIMO-OFDM combination has been developed to meet the rapidly increment in the users demand such as the ubiquitous transmission, imposing new multimedia applications and wireless services. In this algorithm, wavelets techniques have been used to denoise the affected OFDM symbol by high PAPR values. After that and based on adaptive threshold method the local maxima and minima will be determined and replaced by the average of them and their surrounding neighbors; Denoise OFDM and Replace PAPR (DORP).
A system performance investigation process will be accomplished based on both of numerical method and MATLAB simulation. Moreover, a comparison has been made to check the validity of our proposition either with our previously published work or with the literature. Although, the achieved results show that the proposed work has lower PAPR values; an additional complexity has been added to transceiverâ??s structure. Moreover, and as a result to the comparison with the conventional systems, the bit error rate (BER) performance has been improved for the same bandwidth occupancy.
As a validity process a comparison has been made with the current values found in the literature and we have achieved around 30% PAPR extra reduction. That is in addition to around 90% verification rate and noise immunity.
A system performance investigation process will be accomplished based on both of numerical method and MATLAB simulation. Moreover, a comparison has been made to check the validity of our proposition either with our previously published work or with the literature. Although, the achieved results show that the proposed work has lower PAPR values; an additional complexity has been added to transceiverâ??s structure. Moreover, and as a result to the comparison with the conventional systems, the bit error rate (BER) performance has been improved for the same bandwidth occupancy.
As a validity process a comparison has been made with the current values found in the literature and we have achieved around 30% PAPR extra reduction. That is in addition to around 90% verification rate and noise immunity.
Creator
Daoud, Omar
Hamarsheh, Qadri
Al-Sawalmeh, Wael
Source
International Journal of Interactive Mobile Technologies (iJIM); Vol. 7 No. 3 (2013); pp. 4-8
1865-7923
Publisher
International Association of Online Engineering (IAOE), Vienna, Austria
Date
2013-06-26
Rights
Copyright (c) 2017 Omar Daoud, Qadri Hamarsheh, Wael Al-Sawalmeh
Relation
Format
application/pdf
Language
eng
Type
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Identifier
Citation
Omar Daoud, Qadri Hamarsheh and Al-Sawalmeh, Wael, MIMO-OFDM Systems Performance Enhancement Based Peaks Detection Algorithm, International Association of Online Engineering (IAOE), Vienna, Austria, 2013, accessed December 26, 2024, https://igi.indrastra.com/items/show/1040