Non-Parametric Impulsive Noise Mitigation in OFDM Systems Using Sparse Bayesian Learning

2011 ◽  
Author(s):  
Jing Lin ◽  
M. Nassar ◽  
B. L. Evans
Keyword(s):  
Bayesian Learning ◽  
Impulsive Noise ◽  
Sparse Bayesian Learning ◽  
Ofdm Systems ◽  
Noise Mitigation ◽  
Non Parametric

scholarly journals Joint Channel Estimation and Impulsive Noise Mitigation Method for OFDM Systems Using Sparse Bayesian Learning

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 74500-74510
Author(s):  
Xinrong Lv ◽  
Youming Li ◽  
Yongqing Wu ◽  
Xiaoli Wang ◽  
Hui Liang
Keyword(s):  
Channel Estimation ◽  
Bayesian Learning ◽  
Impulsive Noise ◽  
Sparse Bayesian Learning ◽  
Ofdm Systems ◽  
Noise Mitigation ◽  
Joint Channel

scholarly journals Efficient Impulsive Noise Mitigation for OFDM Systems Using the Alternating Direction Method of Multipliers

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Xin-Rong Lv ◽  
Youming Li ◽  
Yu-Cheng He
Keyword(s):  
Optimization Problem ◽  
Impulsive Noise ◽  
Estimation Algorithm ◽  
Alternating Direction Method ◽  
Method Of Multipliers ◽  
Ofdm Systems ◽  
Box Constraints ◽  
Noise Mitigation ◽  
Alternating Direction ◽  
Performance Gains

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.

ICI-Free Equalization in OFDM Systems with Blanking Preprocessing at the Receiver for Impulsive Noise Mitigation

2015 ◽  
Vol 22 (9) ◽  
pp. 1321-1325 ◽  
Author(s):  
Donatella Darsena ◽  
Giacinto Gelli ◽  
Fulvio Melito ◽  
Francesco Verde
Keyword(s):  
Impulsive Noise ◽  
Ofdm Systems ◽  
Noise Mitigation

Impulsive noise mitigation in haar DWT based OFDM systems

2013 ◽  
Author(s):  
Moaaz Elhag Ali ◽  
Khaizuran Abdullah ◽  
Mohammad Umar Siddiqi ◽  
Ahmad Fadzil Ismail
Keyword(s):  
Impulsive Noise ◽  
Ofdm Systems ◽  
Noise Mitigation
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