Browse > Article
http://dx.doi.org/10.5515/KJKIEES.2018.29.3.184

Performance Comparison of OFDM Based on Fourier Transform and Wavelet OFDM Based on Wavelet Transform  

Lee, Jungu (Department of Electronic Engineering, Chungbuk National University)
Ryu, Heung-Gyoon (Department of Electronic Engineering, Chungbuk National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.29, no.3, 2018 , pp. 184-191 More about this Journal
Abstract
Orthogonal frequency division multiplexing(OFDM) is a multicarrier modulation(MCM) system that enables high-speed communications using multiple carriers and has advantages of power and spectral efficiency. Therefore, this study aims to complement the existing shortcomings and to design an efficient MCM system. The proposed system uses the inverse discrete wavelet transform(IDWT) operation instead of the inverse fast Fourier transform(IFFT) operation. The bit error rate(BER), spectral efficiency, and peak-to-average power ratio(PAPR) performance were compared with the conventional OFDM system through the OFDM system design based on wavelet transform. Our results showed that the conventional OFDM and Wavelet-OFDM exhibited the same BER performance, and that the Wavelet-OFDM using the discrete Meyer wavelet had the same spectral efficiency as the conventional OFDM. In addition, all systems of Wavelet-OFDM based on various wavelets confirm a PAPR performance lower than that of conventional OFDM.
Keywords
Wavelet-OFDM; OFDM; IDWT; IFFT; Discrete Meyer;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 T. Hwang, C. Yang, G. Wu, S. Li, and G. Y. Li, "OFDM and its wireless applications: A survey," IEEE Transactions on Vehicular Technology, vol. 58, no. 4, pp. 1673-1694, May 2009.   DOI
2 Y. J. Choi, H. R. Kim, N. Kim, Y. H. Ko, and J. H. Ahn, "Performance analysis of a OFDM system for wireless LAN in indoor wireless channel," Journal of Korean Institute of Electromagnetic Engineering and Science, vol. 12, no. 2, pp. 268-277, Feb. 2001.
3 A. Roy, A. S. Poonia, "Implementation of IDWT OFDM system in LabVIEW," International Journal of Modern Trends in Engineering and Research, vol. 2, no. 6, pp. 620-624, Jun. 2015.
4 G. Sailakshmi, K. Sudha, "BER analysis of wavelet based OFDM using different modulation techniques," International Journal of Science and Research, vol. 4, no. 5, pp. 2519-2523, Mar. 2014.
5 A. H. Kattoush, W. A. Mahmoud, and S. Nihad, "The performance of multiwavelets based on OFDM system under different channel conditions," Digital Signal Processing, vol. 20, no. 2, pp. 472-482, Mar. 2010.   DOI
6 M. Oltean, M. Nafornita, "Wavelet OFDM performance in frequency selective fading channels," in 2010 8th International Conference on Communications, Bucharest, 2010, pp. 343-346.
7 D. Wulich, "Definition of efficient PAPR in OFDM," IEEE Communications Letters, vol. 9, no. 9, pp. 832-834, Sep. 2005.   DOI
8 D. TL Lee, A. Yamamoto, "Wavelet analysis: Theory and applications," Hewlett Packard Journal, vol. 45, pp. 44-52, 1994.
9 M. Chafii, J. Palicot, R. Gribonval, and A. G. Burr, "Power spectral density limitations of the wavelet-OFDM system," in Signal Processing Conference(EUSIPCO), 2016 24th European, 2016, pp. 1428-1432.
10 J. Lee, J. H. Kim, and W. Kim, "Comparison and performance analysis of wavelet OFDM system and FD-OFDM," Journal of the Institute of Electronics and Information Engineers, vol. 50, no. 7, pp. 34-42, Jul. 2013.   DOI
11 K. T. Moon, J. S. Kim, D. W. Jang, and K. S. Kim, "A design of power line communication system using wavelet OFDM," Journal of Korean Institute of Communications and Information Science, vol. 35, no. 11, pp. 871-876, Nov. 2010.
12 M. Chafii, J. Palicot, and R. Gribonval, "Wavelet modulation: An alternative modulation with low energy consumption," Comptes Rendus Physique, vol. 18, no. 2, pp. 156-167, 2017.   DOI
13 K. Abdullah, Z. M. Hussain, "Simulation of models and BER performances of DWT-OFDM versus FFT-OFDM," in Discrete Wavelet Transforms-Algorithms and Applications, InTech, 2011.
14 K. Abdullah, Z. M. Hussain, "Studies on DWT-OFDM and FFT-OFDM systems," in International Conference on Communication, Computer and Power(ICCCP'09), Muscat, 2009, pp. 15-18.
15 V. Vermehren, H. M. de Oliveira, "Close expressions for Meyer wavelet and scale function," preprint, ar Xiv:1502.00161, 2015.