Performance of iterative channel estimation and iterative PIC detection for the uplink coded MC-CDMA system

Author

Yuan-Wu, Yi ; Legouable, Rodolphe

Author_Institution

France Telecom R&D-RESA-MNA, France

fYear

2005

fDate

5-8 June 2005

Firstpage

101

Lastpage

105

Abstract

This paper is devoted to the coded MC-CDMA (or OFCDM) uplink radio mobile system study. It highlights that the iterative PIC detector outperforms the MUD-MMSE detector when combining with the proposed channel estimation technique. The channel estimation is based on the delay profile algorithm considering the improved path indexes in the frequency domain and on the enhanced polynomial interpolation in the time domain. The proposed scheme is considered iteratively with the pilot and the decoded feedback data. The simulation results show that an important performance improvement is obtained.

Keywords

channel estimation; code division multiple access; interference suppression; interpolation; iterative decoding; least mean squares methods; mobile radio; multiuser detection; radio links; time-frequency analysis; MUD-MMSE detector; channel estimation; decoded feedback data; delay profile algorithm; enhanced polynomial interpolation; frequency domain method; iterative PIC detection; minimum mean square error; multicarrier code division multiple access; multiuser joint detection; parallel interference cancellation; pilot data; radio mobile system; time domain method; uplink coded MC-CDMA system; Channel estimation; Delay effects; Delay estimation; Detectors; Frequency domain analysis; Interpolation; Iterative algorithms; Multicarrier code division multiple access; OFDM; Polynomials;

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.2005.1505880

Filename

1505880