Title :
Interspersed sinusoidal transforms for OFDM systems
Author :
Mandyam, Giridhar D.
Author_Institution :
Nokia Res. Center, Irving, TX, USA
Abstract :
A method for using the discrete cosine transform (DCT) and discrete sine transform (DST) for orthogonal frequency division multiplexing (OFDM) wireless transmission methods is described. These transforms satisfy the cyclic convolution properties of the normally used discrete Fourier transform (DFT) when they are used with a symmetric extension. Taking advantage of properties of the DCT and DST, an interspersed transmission method is proposed. This method can lead to highly spectrally efficient OFDM when compared to the DFT.
Keywords :
OFDM modulation; channel estimation; discrete Fourier transforms; discrete cosine transforms; equalisers; DCT; DFT; DST; OFDM wireless transmission method; cyclic convolution property; discrete Fourier transform; discrete cosine transform; discrete sine transform; interspersed sinusoidal transform; orthogonal frequency division multiplexing; Convolution; Delay; Discrete Fourier transforms; Discrete cosine transforms; Discrete transforms; Drives; Fourier transforms; Intersymbol interference; OFDM modulation; Throughput;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399295
