Title :
The OFDM system based on Discrete Cosine Harmonic Wavelet transform
Author :
Suma, M.N. ; Narasimhan, S.V. ; Kanmani, B.
Author_Institution :
BMS Coll. of Eng., Bangalore, India
Abstract :
This paper proposes a new OFDM systems based on A Discrete Cosine Harmonic Wavelet (DCHWT), for BPSK and QPSK signals. This has been realized by proposing new separate structures for BPSK and QPSK signals. This enables to utilize the energy compaction of DCT and the computational simplicity of DCHWT for OFDM systems. The proposed OFDM systems provide improved performance in terms of BER and PAPR compared to those of conventional OFDM based on DFT /DCT with Cyclic prefix. The new OFDMs have a better or equal performance compared to those of some of the existing wavelet based OFDMS.
Keywords :
OFDM modulation; discrete cosine transforms; discrete wavelet transforms; quadrature phase shift keying; BER; BPSK signals; DCHWT; DCT energy compaction; DFT; OFDM system; PAPR; QPSK signals; binary phase shift keying; cyclic prefix; discrete cosine harmonic wavelet transform; orthogonal frequency division multiplexing; quadrature phase shift keying; Binary phase shift keying; Discrete cosine transforms; Discrete wavelet transforms; OFDM; DCT harmonic wavaelet transform OFDM; DCT-OFDM; DFT-OFDM;
Conference_Titel :
Communications (NCC), 2012 National Conference on
Conference_Location :
Kharagpur
Print_ISBN :
978-1-4673-0815-1
DOI :
10.1109/NCC.2012.6176766
