Performance improvement of RAKE receiver for a multicode DS-CDMA system with multistage interference cancellation detectors

Author

Kim, Su Il ; Lee, Hwang Soo

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejeon, South Korea

Volume

1

fYear

1999

fDate

1999

Firstpage

573

Abstract

To improve the performance of the parallel interference cancellation (PIC) detector in a multicode DS-CDMA system, we propose a RAKE receiver called the successive multipath noise canceller (SMNC), with accurate channel estimation as the initial stage. The pilot multipath noise can be reconstructed and removed. The accurate channel estimates without interchannel interference due to the PIC even for multicode channels can also be used in demodulating the symbols. Computer simulation results show that a considerable performance improvement is achieved by the use of the SMNC

Keywords

adjacent channel interference; code division multiple access; demodulation; interference suppression; intersymbol interference; land mobile radio; multipath channels; multiuser channels; parameter estimation; radio receivers; signal detection; spread spectrum communication; ISI; RAKE receiver; channel estimation; computer simulation results; demodulation; interchannel interference; intersymbol interference; multicode DS-CDMA system; multistage interference cancellation detectors; parallel interference cancellation detector; performance improvement; pilot multipath noise reconstruction; successive multipath noise canceller; third generation mobile communication systems; Channel estimation; Detectors; Downlink; Fading; Interchannel interference; Interference cancellation; Intersymbol interference; Multiaccess communication; Multipath channels; Noise cancellation;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818479

Filename

818479