期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2014
卷号：11
期号：6
出版社：IJCSI Press
摘要：Discrete Wavelet Transform DWT has advantages over Fast Fourier Transform FFT in analyzing signals containing sharp spikes. DWT processes data at different scales. If we look at the signal with a large window, we would notice big features. Similarly, if we look at the signal with a small window, we would notice small features. The DWT features encourage us to compare them with those of the FFT. In this paper, we analytically compare between the error performance of FFT and DWT in terms of the Bit Error Probability BEP. Then WiMAX system parameters are used to ensure the suitability of application on WiMAX system.
关键词：Discrete Wavelet Transform (DWT); Fast Fourier Transform (FFT); Probability of Error p(e); Quadrature Mirror Filter (QMF); Worldwide interoperability for Microwave Access (WiMAX).
