The Performance of OFDM with Blanking Nonlinearity in Impulsive and Gaussian Noise

Authors

  • Fadel S. Hassen Electrical Engineering Department, College of Engineering, Al-Mustansiriya University, Baghdad, Iraq Author

Keywords:

.

Abstract

The aim of this paper is to investigate the effect of impulsive noise on the performance of the OFDM (orthogonal frequency division Multiplexing) system. The employed model of impulsive noise consists of Bernoulli distributed impulsive arrivals and Gaussian distributed amplitudes of the impulses. A simple method of improving OFDM receiver performance in an impulsive noise environment is to precede a conventional OFDM demodulator with blanking nonlinearity.
The effect of changing impulsivity of noise and different relative power of impulsive noise are investigated and are compared with Additive Whit Gaussian Noise (AWGN) case. Also the performance of the OFDM receiver with blanking nonlinearity in the presence of impulsive noise will be studied.
Closed form analytical expressions for the signal-to-noise ratio (SNR) at the output of blanking nonlinearity and the optimal blanking threshold that maximizes SNR are derived.

Downloads

Published

2007-03-01

Issue

Vol. 11 No. 1 (2007): Journal of Engineering and Development

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)

How to Cite

The Performance of OFDM with Blanking Nonlinearity in Impulsive and Gaussian Noise. (2007). Journal of Engineering and Sustainable Development, 11(1), 123-139. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1707