Impulsive noise mitigation using an adaptive WMA-MVDR estimator for array based wireless communications

Author

Yang, Xing Guang John ; Wee Ser ; Razul, Sirajudeen Gulam ; See, Chong Meng Samson

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2013

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose an adaptive WMA-MVDR estimator for mitigating impulsive noise in a multiple-access interference (MAI) environment. A time-domain Bernoulli-Gaussian process is used to model the impulsive noise. The estimator comprises two stages of processing: an adaptive window-mean amplitude (WMA) filter and a modified MVDR (Minimum Variance Distortionless Response) estimator. Numerical results show that the bit error rate (BER) performance of the proposed algorithm outperforms some existing estimators under the impulsive noise environment.

Keywords

Gaussian processes; error statistics; filtering theory; impulse noise; radio networks; radiofrequency interference; BER; Bernoulli-Gaussian process; MAI environment; MVDR; WMA filter; adaptive WMA-MVDR estimator; array based wireless communications; bit error rate; impulsive noise; impulsive noise environment; impulsive noise mitigation; minimum variance distortionless response estimator; multiple access interference; window mean amplitude; Adaptation models; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing (ICICS) 2013 9th International Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4799-0433-4

Type

conf

DOI

10.1109/ICICS.2013.6782865

Filename

6782865