On the performance of a discrete time RAKE

Author

Boujemaa, Hatem ; Fratu, Octavian ; Siala, Mohamed ; Loubaton, Philippe

Author_Institution

France Telecom, CNET, France

Volume

2

fYear

2000

fDate

2000

Firstpage

949

Abstract

A discrete time implementation of the RAKE receiver (DTR) is proposed. The suggested approach works without knowledge of the path delays and their number. It is based on a global estimation of the multipath channel convolutioned with the shaping filter. Since the DTR performance is very sensitive to the channel estimation quality, we suggest a disregarding method for the least significant estimated channel coefficients while taking into account the known impulse response of the shaping filter. The performance of the DTR and the conventional RAKE are then compared

Keywords

delays; filtering theory; matched filters; multipath channels; parameter estimation; radio receivers; spread spectrum communication; transient response; DS-SS; channel estimation; direct sequence spread spectrum systems; discrete time RAKE; global estimation; impulse response; matched filter; multipath channel; performance; performance receiver; shaping filter; Blind equalizers; Channel estimation; Delay estimation; Fading; Matched filters; Multi-stage noise shaping; Multipath channels; Noise shaping; Spread spectrum communication; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-6463-5

Type

conf

DOI

10.1109/PIMRC.2000.881562

Filename

881562