A multicarrier-CDMA receiver with full interference suppression and carrier frequency offset recovery

Author

Smida, Besma ; Affes, Sofiène ; Jamaoui, Kamal ; Mermelstein, Paul

Author_Institution

Univ. du Quebec, INRS-EMT, Montreal, Que, Canada

fYear

2005

fDate

5-8 June 2005

Firstpage

435

Lastpage

439

Abstract

A low-complexity multicarrier-CDMA space-time receiver with full interference suppression capabilities is developed and analyzed for high-rate transmissions over next-generation CDMA systems. First, we derive a complete model of the interference which takes into account MAI, ISI, and ICI. Based on this model, we introduce a new multicarrier interference subspace rejection (MC-ISR) receiver and analyze its performance in an unknown time-varying Rayleigh channel with multipath, carrier offset and cross-correlation between subcarrier channels. We also propose a realistic implementation of this receiver which includes an efficient strategy for carrier offset recovery in a multicarrier and multiuser detection scheme. Simulation results confirm the net advantage of the full interference suppression capabilities of MC-ISR.

Keywords

Rayleigh channels; code division multiple access; interference suppression; intersymbol interference; multipath channels; multiuser detection; radio receivers; space-time codes; time-varying channels; ICI; ISI; ISR receiver; MAI; carrier frequency offset recovery; cross-correlation; full interference suppression; high-rate transmission; intercarrier interference; interference subspace rejection; intersymbol interference; low-complexity MC-CDMA; multicarrier code division multiple access; multipath channel; multiple access interference; multiuser detection scheme; space-time receiver; time-varying Rayleigh channel; Degradation; Frequency; Interference cancellation; Interference suppression; Intersymbol interference; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Multiuser detection; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2005 IEEE 6th Workshop on

Print_ISBN

0-7803-8867-4

Type

conf

DOI

10.1109/SPAWC.2005.1506062

Filename

1506062