SIMO MC-CDMA multiuser detectors: A DSP implementation approach

Author

Oliveira, L.D. ; Angélico, B.A. ; Jeszensky, P.J.E. ; Abrão, T.

Author_Institution

Dept. of Telecomm. & Control Eng., Escola Politec. of the Univ. of Sao Paulo, São Paulo, Brazil

fYear

2010

fDate

17-20 Oct. 2010

Firstpage

50

Lastpage

54

Abstract

This work presents a comparative framework for different multiuser detectors (MUD) applied to single input multiple output (SIMO) multicarrier-code division multiple access (MC-CDMA) system. The Optimum MUD (OMUD), Parallel Interference Cancelling (PIC), Linear MUDs and the 1-optimum Local Search (1-LS) algorithms are analyzed and compared as performance against complexity trade-off. Performance evaluation is carried out in terms of symbol error rate (SER), and further, the implementations aspects are fully exhibited through a number of operation complexity analysis. Simulation results indicate clearly the advantage of sub-optimum 1-LS detector approach in terms of performance-complexity trade-off.

Keywords

MIMO communication; code division multiple access; computational complexity; digital signal processing chips; interference suppression; least squares approximations; multiuser detection; performance evaluation; search problems; 1-optimum local search algorithms; DSP implementation approach; PIC; SIMO MC-CDMA multiuser detectors; linear MUD; multicarrier-code division multiple access system; multiuser detectors; operation complexity analysis; optimum MUD; parallel interference cancelling; performance evaluation; single input multiple output system; suboptimum 1-LS detector approach; symbol error rate; Complexity theory; Decorrelation; Detectors; Digital signal processing; Multicarrier code division multiple access; Multiuser detection; Receiving antennas; MC-CDMA; Multiuser detection; computational complexity; local search algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications (ISITA), 2010 IEEE 11th International Symposium on

Conference_Location

Taichung

ISSN

1943-7439

Print_ISBN

978-1-4244-6013-7

Electronic_ISBN

1943-7439

Type

conf

DOI

10.1109/ISSSTA.2010.5651560

Filename

5651560