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Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers
Joint Authors
Lv, Xin-Rong
Li, Youming
He, Yu-Cheng
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-07
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
An efficient impulsive noise estimation algorithm based on alternating direction method of multipliers (ADMM) is proposed for OFDM systems using quadrature amplitude modulation (QAM).
Firstly, we adopt the compressed sensing (CS) method based on the l1-norm optimization to estimate impulsive noise.
Instead of the conventional methods that exploit only the received signal in null tones as constraint, we add the received signal of data tones and QAM constellations as constraints.
Then a relaxation approach is introduced to convert the discrete constellations to the convex box constraints.
After that a linear programming is used to solve the optimization problem.
Finally, a framework of ADMM is developed to solve the problem in order to reduce the computation complexity.
Simulation results for 4-QAM and 16-QAM demonstrate the practical advantages of the proposed algorithm over the other algorithms in bit error rate performance gains.
American Psychological Association (APA)
Lv, Xin-Rong& Li, Youming& He, Yu-Cheng. 2018. Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1207769
Modern Language Association (MLA)
Lv, Xin-Rong…[et al.]. Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers. Mathematical Problems in Engineering No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1207769
American Medical Association (AMA)
Lv, Xin-Rong& Li, Youming& He, Yu-Cheng. Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1207769
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1207769