Evaluation of the critical load of parallel interference cancellation based on the PDA approach

Author

Vanhaverbeke, F. ; Moeneclaey, M.

Author_Institution

TELIN/DIGCOM, Ghent State Univ., Gent, Belgium

Volume

2

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

1551

Abstract

Two parallel interference cancellation (PIC) schemes, based on the probabilistic data association (PDA) approach are evaluated with respect to the allowable load. The N-dimensional PDA detector achieves an acceptable load that is more than three times higher than that of the one-dimensional detector. An improvement of these PIC schemes is proposed by replacing the a priori probabilities in every stage of the cancellation process by the a posteriori probabilities of the previous stage. This results in a critical load that is twice as high as that of the original PDA detector for the one-dimensional version of the PDA-PIC detector.

Keywords

interference suppression; probability; N-dimensional PDA detector; PDA approach; PDA-PIC detector; a priori probabilities; one-dimensional detector; parallel interference cancellation; probabilistic data association; AWGN channels; Delay; Detectors; Filtering; Hardware; Interference cancellation; Matched filters; Multiaccess communication; Multiuser detection; Silicon carbide;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1260373

Filename

1260373