General baseband digital model and matrix representation for different orthogonal frequency division multiplexing CDMA schemes

Author

Wu, Xiaojun ; Zhao, Zheng ; Yin, Qinye

Author_Institution

Inst. of Inf. Eng., Xi´´an Jiaotong Univ., China

Volume

2

fYear

2001

fDate

2001

Firstpage

427

Abstract

Multicarrier modulation code division multiple access (MCM-CDMA) technique or orthogonal frequency division multiplexing code division multiple access (OFDM-CDMA) scheme can sufficiently utilize the available spectrum and meet the demand of diverse multimedia services, therefore it is broadly considered as an effective approach for future wireless multimedia communications. In this paper, based on software-defined radio (SDR), by exploiting the discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT), a general baseband digital model for different OFDM-CDMA schemes is developed. Moreover, the corresponding matrix representation is addressed

Keywords

OFDM modulation; code division multiple access; discrete Fourier transforms; matrix algebra; multimedia communication; multiuser channels; reconfigurable architectures; transceivers; DFT; DSP; IDFT; OFDM-CDMA; code division multiple access; digital signal processor; discrete Fourier transform; general baseband digital model; inverse discrete Fourier transform; matrix representation; multicarrier modulation code division multiple access; multimedia services; multimode transceivers; orthogonal frequency division multiplexing; reconfigurable architecture; software-defined radio; wireless multimedia communications; Baseband; Discrete Fourier transforms; Fading; Frequency conversion; Multiaccess communication; Multicarrier code division multiple access; Multimedia communication; OFDM; Time domain analysis; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.936976

Filename

936976