Interspersed sinusoidal transforms for OFDM systems

Author

Mandyam, Giridhar D.

Author_Institution

Nokia Res. Center, Irving, TX, USA

Volume

1

fYear

2004

fDate

7-10 Nov. 2004

Firstpage

1025

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on

Print_ISBN

0-7803-8622-1

Type

conf

DOI

10.1109/ACSSC.2004.1399295

Filename

1399295