Improved CDMA performance through bias reduction for parallel interference cancellation

Author

Correal, Neiyer S. ; Buehrer, R. Michael ; Woerner, Brian D.

Author_Institution

Mobile & Portable Radio Res. Group, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

2

fYear

1997

fDate

1-4 Sep 1997

Firstpage

565

Abstract

Parallel multistage interference cancellation is a promising approach for practical implementation of multiuser detection. However, as this paper shows, direct implementation of multistage parallel interference cancellation (i.e. complete cancellation of the estimated interference) results in biased estimates and consequently reduced performance. A simple technique that mitigates the effect of the bias and provides significant performance gains over the direct implementation is presented

Keywords

Gaussian channels; code division multiple access; interference suppression; radio receivers; AWGN channel; CDMA performance; bias reduction; multistage interference cancellation; multiuser detection; parallel interference cancellation; performance gains; Computational complexity; Computer architecture; Electrical capacitance tomography; Interference cancellation; Multiaccess communication; Multiple access interference; Performance gain; Power system modeling; Statistical analysis; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on

Conference_Location

Helsinki

Print_ISBN

0-7803-3871-5

Type

conf

DOI

10.1109/PIMRC.1997.631095

Filename

631095