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A Novel Technique for Transmission of M-Ary Signal through Wireless Fading Channel Using Wavelet Denoising
Joint Authors
Alam, Md. Zahangir
Patra, Charles Chittaranjan
Patra, Colin
Sobhan, M. Abdus
Source
Journal of Computer Networks and Communications
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-28
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Information Technology and Computer Science
Abstract EN
The paper proposes a novel technique for reducing noise in M-ary signal transmission through wireless fading channel using wavelet denoising that play the key role.
The paper also explains that the conventional threshold-based technique is not capable of denoising M-ary quadrature amplitude modulated (M-QAM) signals having multilevel wavelet coefficients through wireless fading channels.
A detailed step by step wavelet decomposition and reconstruction processes are discussed here to transform a signal function into wavelet coefficients using simulation software like MATLAB.
A 16-QAM modulated symbol through a Rician fading channel is weighted by a control variable of complex form to force the mean of each detail coefficient except low frequency component to zero to enhance noiseless property.
The bit error rate (BER) performance of the simulation results are furnished to show the effectiveness of the proposed technique.
The root mean square of the deviation of the reconstruct signal from the original signal is used to express the effectiveness of the proposed technique.
The traditional denoising provides very high value (above 90%) of the percentage root mean square difference (PDR) and the proposed technique provides only 10% PDR value for the symbol through a noisy channel.
The result of the simulation study reveals that the BER performance can be increased using an appropriate control variable to force the mean of each detail coefficient to zero.
American Psychological Association (APA)
Alam, Md. Zahangir& Patra, Charles Chittaranjan& Patra, Colin& Sobhan, M. Abdus. 2011. A Novel Technique for Transmission of M-Ary Signal through Wireless Fading Channel Using Wavelet Denoising. Journal of Computer Networks and Communications،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-456049
Modern Language Association (MLA)
Alam, Md. Zahangir…[et al.]. A Novel Technique for Transmission of M-Ary Signal through Wireless Fading Channel Using Wavelet Denoising. Journal of Computer Networks and Communications No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-456049
American Medical Association (AMA)
Alam, Md. Zahangir& Patra, Charles Chittaranjan& Patra, Colin& Sobhan, M. Abdus. A Novel Technique for Transmission of M-Ary Signal through Wireless Fading Channel Using Wavelet Denoising. Journal of Computer Networks and Communications. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-456049
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456049