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An OFDM System Based on Dual Tree Complex Wavelet Transform (DT-CWT)
Mohamed Hussien Nerma, Nidal S. Kamel, Varun Jeoti
Pages - 14 - 21     |    Revised - 05-05-2009     |    Published - 18-05-2009
Volume - 3   Issue - 2    |    Publication Date - April 2009  Table of Contents
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KEYWORDS
OFDM, WPT, DT-CWT, FFT, Multicarrier Modulation
ABSTRACT
As demand for higher data rates rises, need to develop more efficient wireless communication systems also rises. The work described in this paper is an effort in this direction. We have proposed a novel orthogonal frequency division multiplexing (OFDM) system based on dual – tree complex wavelet transform (DT-CWT). In the proposed scheme, DT-CWT is used in the place of fast Fourier transform (FFT). The proposed scheme achieves excellent improvements in bit error rate (BER) over conventional OFDM and wavelet packet modulation (WPM) systems. Moreover, the proposed scheme offers the better peak – to – average power ratio (PAPR) performance compared to conventional OFDM and WPM systems at the expense of acceptable computational complexity. The complementary cumulative distribution function (CCDF) of PAPR for the proposed scheme achieves about 3 dB improvement in PAPR over the traditional OFDM and WPM signals at 0.1% of CCDF.
CITED BY (6)  
1 Ben-Ezra, Y., & Lembrikov, B. I. (2015). Application of Complex Wavelet Packet Transform (CWPT) in Coherent Optical OFDM (CO-OFDM) Communication Systems.
2 Ben-Ezra, Y., Brodeski, D., & Lembrikov, B. I. (2014, July). High spectral efficiency OFDM based on complex wavelet packets. In Transparent Optical Networks (ICTON), 2014 16th International Conference on (pp. 1-3). IEEE.
3 Varugheese, D., & Muniraj, N. (2012). FPGA Implementation of New Adaptive DWT-IDWT Lifting Technique for OFDM. European Journal of Scientific Research, 75(1), 92-103.
4 Hossain, K. M., Ghosh, D. N., & Ghosh, K. (2009). Investigating multifractality of solar irradiance data through wavelet based multifractal spectral analysis. Signal Processing: An International Journal (SPIJ), 3(4), 83.
5 Khondekar, M. H., Nath, D., & Ghosh, K. (2009). Investigatng MultIfractality of Solar Irradiance Data Through Wavelet Based MultIfractal Spectral Analysis.
6 Kaimal, A. M., Anand, R., Prabhu, V., & Premanand, V. Visualization And Performance Evaluation Of DT-CWT Based OFDM System In Linear Algebra Perspective.
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Mr. Mohamed Hussien Nerma
- Malaysia
mohamed_hussien@ieee.org
Mr. Nidal S. Kamel
- Malaysia
Mr. Varun Jeoti
-


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