Decoding of Turbo Codes in Symmetric Alpha-Stable Noise
Joint Authors
Heng Siong, Lim
Shafieipour, Mohammad
Chuah, Teong-Chee
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-03-29
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Electronic engineering
Information Technology and Computer Science
Abstract EN
This paper investigates the decoding of turbo codes in impulsive symmetric α-stable (SαS) noise.
Due to the nonexistence of a closed-form expression for the probability density function (pdf) of α-stable processes, numerical-based SαS pdf is used to derive branch transition probability (btp) for the maximum a posteriori turbo decoder.
Results show that in Gaussian noise, the turbo decoder achieves similar performance using both the conventional and the proposed btps, but in impulsive channels, the turbo decoder with the proposed btp substantially outperforms the turbo decoder utilizing the conventional btp.
Results also confirm that the turbo decoder incorporating the proposed btp outperforms the existing Cauchy-based turbo decoder in non-Cauchy impulsive noise, while the two decoders accomplish similar performance in Cauchy noise.
American Psychological Association (APA)
Shafieipour, Mohammad& Heng Siong, Lim& Chuah, Teong-Chee. 2011. Decoding of Turbo Codes in Symmetric Alpha-Stable Noise. ISRN Signal Processing،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-490298
Modern Language Association (MLA)
Shafieipour, Mohammad…[et al.]. Decoding of Turbo Codes in Symmetric Alpha-Stable Noise. ISRN Signal Processing No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-490298
American Medical Association (AMA)
Shafieipour, Mohammad& Heng Siong, Lim& Chuah, Teong-Chee. Decoding of Turbo Codes in Symmetric Alpha-Stable Noise. ISRN Signal Processing. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-490298
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-490298