Universal discrete model and linear algebra representation for variant OFDM-CDMA systems

Author

Wu, Xiaojun ; Feng, Aigang ; Yin, Qinye

Author_Institution

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

Volume

2

fYear

2001

fDate

6-9 May 2001

Firstpage

213

Abstract

Variant Orthogonal Frequency Division Multiplexing Code Division Multiple Access (OFDM-CDMA) schemes can mitigate the hostile influence due to the frequency-selective fading while maintaining bandwidth efficiency by minimizing the frequency separation between adjacent subcarriers, therefore they are broadly considered as effective approaches for future wireless multimedia communications. In this paper, based on software-defined radio (SDR), by neglecting differentiae of both “decomposition” and spread spectral operations in each scheme, a universal discrete model for variant OFDM-CDMA systems is developed. Moreover, the corresponding linear algebra representation is addressed, which is of significance to design reconfigurable, reprogrammable, and multimode transceivers

Keywords

OFDM modulation; fading; land mobile radio; multimedia communication; spread spectrum communication; transceivers; adjacent subcarriers; bandwidth efficiency; decomposition; frequency separation; frequency-selective fading; linear algebra representation; multimode transceivers; reconfigurable transceivers; reprogrammable transceivers; software-defined radio; spread spectral operations; universal discrete model; variant OFDM-CDMA systems; wireless multimedia communications; Fading; Frequency conversion; Linear algebra; Maintenance engineering; Multiaccess communication; Multicarrier code division multiple access; Multimedia communication; OFDM; Time domain analysis; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.921045

Filename

921045