Studies on DWT-OFDM and FFT-OFDM systems

Abdullah, K and Hussain, Z 2009, 'Studies on DWT-OFDM and FFT-OFDM systems', in H.E. Dr. Ali Al-Bimani (ed.) Proceedings of the 2009 International Conference on Communication, Computer and Power (ICCCP'09), Muscat, Oman, 15-18 Feb 2009, pp. 1-5.


Document type: Conference Paper
Collection: Conference Papers

Title Studies on DWT-OFDM and FFT-OFDM systems
Author(s) Abdullah, K
Hussain, Z
Year 2009
Conference name 2009 International Conference on Communication, Computer and Power (ICCCP'09)
Conference location Muscat, Oman
Conference dates 15-18 Feb 2009
Proceedings title Proceedings of the 2009 International Conference on Communication, Computer and Power (ICCCP'09)
Editor(s) H.E. Dr. Ali Al-Bimani
Publisher Proceedings of the 2009 International Conference on Communication, Computer and Power (ICCCP'09)
Place of publication Muscat, Oman
Start page 1
End page 5
Total pages 5
Abstract Comparative studies on DWT-OFDM and FFTOFDM systems are presented. The model for DWT-OFDM includes zero-padding and vector transpose for transmitting the OFDM signal. MATLAB simulation commands are also described. The discrete wavelet transform-OFDM (DWT-OFDM) has to satisfy the orthonormal bases and the perfect reconstruction properties to be considered as wavelet transform. Different wavelet families have been used and compared with the conventional FFT-OFDM system. It is found that the DWTOFDM platform has less mean amplitude for transmitting the signal as compared to conventional FFT-OFDM system. Results also show that DWT-OFDM is superior as compared to FFTOFDM with regards to the bit error rate (BER) performance, especially when it uses bior5.5 or rbior3.3 wavelet family.
Subjects Signal Processing
Keyword(s) Discrete Wavelet Transform
Fourier-based OFDM
wavelet-based OFDM.
ISSN 1813-419X
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