A novel CDMA multiuser detector with immunity against decision error propagation

Author

Chen, H.-H. ; Liu, Z.Q.

Author_Institution

Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

567

Abstract

A multiuser CDMA detector scheme, “Error Control Decision Feedback” (ECDF) receiver with immunity against decision error propagation, is introduced. It integrates a successive canceller with linear block coding (the extended Hamming code). The ECDF receiver uses a switching successive cancellation feedback branch which can be cut-off if bit errors occur to prevent decision error propagation. The simulation results show that it exhibits a significant improvement in terms of near-far resistance and BER over many reported schemes

Keywords

Hamming codes; block codes; code division multiple access; coding errors; error statistics; feedback; interference suppression; linear codes; signal detection; telecommunication channels; BER; CDMA multiuser detector; bit errors; decision error propagation immunity; error control decision feedback; extended Hamming code; linear block coding; near-far resistance; simulation results; switching successive cancellation feedback; Block codes; Decoding; Decorrelation; Detectors; Error correction; Feedback loop; Interference cancellation; Multiaccess communication; Multiuser detection; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600392

Filename

600392