Dual Tree Complex Wavelet Transform Based Multi Carrier Communication Systems
| Autor: | Meryem Maras, Meltem Gomec, Ali Ozen, Elif Nur Ayvaz |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Orthogonal frequency-division multiplexing
Computer science 05 social sciences Fast Fourier transform 050209 industrial relations Computer Science::Other Computer Science::Performance symbols.namesake Additive white Gaussian noise Wavelet Computer Science::Sound Modulation 0502 economics and business Computer Science::Networking and Internet Architecture symbols Bit error rate Waveform Complex wavelet transform Algorithm 050203 business & management Computer Science::Information Theory |
| Zdroj: | TSP |
| DOI: | 10.1109/tsp.2019.8768852 |
| Popis: | In this paper, DT-CWT-OFDM waveform based on dual tree complex wavelet conversion (DT-CWT) is introduced to enhance the achievement of the classical OFDM waveform. IFFT/FFT blocks used in the classical OFDM waveform are replaced with IDTCWT /DTCWT blocks in the DT-CWT-OFDM waveform. In order to confirm the achievement of the investigated waveform and compare it with the waveforms of classical OFDM and discrete wavelet conversion based OFDM (DWT-OFDM), computer simulation studies are carried out on AWGN, flat Rayleigh damping and frequency-selective Rayleigh damping channels. It is seen from the attained simulation outcomes that the DT-CWT-OFDM waveform has better achievement than the classical OFDM and DWT-OFDM waveforms and also provides approximately 6 dB SNR gain against the classical OFDM and approximately 1.5 dB SNR gain against the DWT-OFDM for a BER value of lE–4. |
| Databáze: | OpenAIRE |
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