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Enhanced performance of amplify and forward cooperative OFDM system in a hostile environment
Author
Source
Thi-Qar University Journal for Engineering Sciences
Issue
Vol. 9, Issue 2 (30 Sep. 2018), pp.95-100, 6 p.
Publisher
University of Thi-Qar College of Engineering
Publication Date
2018-09-30
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
This paper introduces a cooperative orthogonal frequency division multiplexing (CO-OFDM) based on amplify and forward (AF) relay and utilizing a fast low complexity T-transform as a subcarriers modulation scheme.
The proposed cooperative system is developed by changing the modulation/demodulation algorithms which significantly enhanced the immunity of the system to deep notches of the multipath channels.
Thereafter, the paper presents a mathematical analytic model for the proposed amplify and forward CO-T-OFDM scheme.
The use of T-transform in the transceiver of the proposed system enhances the signal diversity.
Therefore, the presented AF cooperative system is efficient in enhancing the signal diversity, mitigating the effects of multipath fading channels and achieving more reliable bit-error-rate (BER) performance than the state-of-the-art cooperative system.
It also moderates the peaks power of the signal.
The BER of the developed AF cooperative system is evaluated by Monte Carlo simulation over frequency-selective multipath channels when AF relay is used, and compared with the BER performance of the standard AF cooperative system.
The results show that the developed AF cooperative technology achieves better BER than the classic CO-OFDM under different transmission scenarios.
American Psychological Association (APA)
Laftah, Husayn Atiyyah. 2018. Enhanced performance of amplify and forward cooperative OFDM system in a hostile environment. Thi-Qar University Journal for Engineering Sciences،Vol. 9, no. 2, pp.95-100.
https://search.emarefa.net/detail/BIM-901022
Modern Language Association (MLA)
Laftah, Husayn Atiyyah. Enhanced performance of amplify and forward cooperative OFDM system in a hostile environment. Thi-Qar University Journal for Engineering Sciences Vol. 9, no. 2 (Sep. 2018), pp.95-100.
https://search.emarefa.net/detail/BIM-901022
American Medical Association (AMA)
Laftah, Husayn Atiyyah. Enhanced performance of amplify and forward cooperative OFDM system in a hostile environment. Thi-Qar University Journal for Engineering Sciences. 2018. Vol. 9, no. 2, pp.95-100.
https://search.emarefa.net/detail/BIM-901022
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 100
Record ID
BIM-901022