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Block-iterative frequency-domain equalizations for SC-IDMA systems
Other Title(s)
التعادلات الكتلية-المتكررة و بمجال ترددي لأنظمة (SC-IDMA)
Author
Source
Issue
Vol. 21, Issue 7 (31 Jul. 2015), pp.85-101, 17 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2015-07-31
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Information Technology and Computer Science
Abstract EN
In wireless broadband communications using single-carrier interleave division multiple access (SC-IDMA) systems, efficient multiuser detection (MUD) classes that make use of joint hybrid decision feedback equalization (HDFE)/ frequency decision-feedback equalization (FDFE) and interference cancellation (IC) techniques, are proposed in conjunction with channel coding to deal with several users accessing the multipath fading channels.
In FDFE-IDMA, the feedforward (FF) and feedback (FB) filtering operations of FDFE, which use to remove intersymbol interference (ISI), are implemented by Fast Fourier Transforms (FFTs), while in HDFE-IDMA the only FF filter is implemented by FFTs.
Further, the parameters involved in the FDFE/HDFE filtering are derived according to the minimum mean square error (MMSE) criteria, and the feedback symbol decisions are directly designed from soft detection of the decoded signals at the previous iteration.
The simulation results including comparisons with those of frequency domain equalization (FDE), SC-FDE-IDMA and multi-carrier OFDM-IDMA schemes, with cyclic prefixing (CP) and zero padding (ZP) techniques, show that the combination of FDFE-IC/HDFE-IC provides an efficient solution with good performance for IDMA systems in ISI channels.
Moreover, these iterative structures with block equalization yield a much lower complexity than equivalent existing structures, making them attractive for a wealth of applications.
American Psychological Association (APA)
Salman, Salah Awwad. 2015. Block-iterative frequency-domain equalizations for SC-IDMA systems. Journal of Engineering،Vol. 21, no. 7, pp.85-101.
https://search.emarefa.net/detail/BIM-612957
Modern Language Association (MLA)
Salman, Salah Awwad. Block-iterative frequency-domain equalizations for SC-IDMA systems. Journal of Engineering Vol. 21, no. 7 (Jul. 2015), pp.85-101.
https://search.emarefa.net/detail/BIM-612957
American Medical Association (AMA)
Salman, Salah Awwad. Block-iterative frequency-domain equalizations for SC-IDMA systems. Journal of Engineering. 2015. Vol. 21, no. 7, pp.85-101.
https://search.emarefa.net/detail/BIM-612957
Data Type
Journal Articles
Language
English
Notes
Includes appendices : p. 95-101
Record ID
BIM-612957