SINR Estimation of OFDM-CDMA Systems with Constant Timing Offset: a Large System Analysis

Author

Nasser, Youssef ; Des Noes, Mathieu ; Ros, Laurent ; Ve Jourdain, Genevi

Author_Institution

CEA-LETI, Grenoble

Volume

1

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

432

Lastpage

436

Abstract

This article presents the impact of a constant timing error on the performance of a downlink 2 dimensional spreading OFDM-CDMA system. This impact is measured by the signal to interference plus noise ratio (SINR) degradation after equalization and despreading. Using random matrix theory, an asymptotic evaluation of the SINR is obtained. It is independent of the value of users´ spreading code while taking into account their orthogonality. Simulation results are provided to evaluate and discuss the validity of this model

Keywords

OFDM modulation; code division multiple access; equalisers; matrix algebra; radio links; OFDM-CDMA systems; SINR estimation; constant timing offset; despreading; equalization; random matrix theory; signal to interference plus noise ratio; spreading code; Bit error rate; Degradation; Downlink; Image analysis; Interference; Noise measurement; OFDM; Performance analysis; Signal to noise ratio; Timing; Asymptotic performance; MC-CDMA; MC-DS-CDMA; MMS; OFDM; SI R;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651473

Filename

1651473