Title :
A novel multipath interference cancellation scheme for RAKE channel estimation
Author :
Baltersee, Jens ; Fock, Gunnar ; Schulz-Rittich, Peter
Author_Institution :
Integrated Signal Process. Syst., Aachen Univ. of Technol., Germany
Abstract :
A novel channel estimation scheme is proposed for a RAKE receiver operating in the downlink of a mobile communication scenario. The approach is an extension of the well known Wiener channel estimator and partly cancels multipath interference, with the additional advantage of being able to cope with physically closely spaced multipaths which arise, for example, in an indoor scenario. It is demonstrated by means of simulation that the algorithm improves the quality of the channel estimates significantly. Little additional computational effort is necessary to implement the algorithm, making it an ideal candidate for improving reception capabilities of the mobile user equipment
Keywords :
Wiener filters; code division multiple access; digital simulation; filtering theory; indoor radio; interference suppression; land mobile radio; multipath channels; multiuser channels; phase estimation; radio links; radio receivers; radiofrequency interference; CDMA transmitter; RAKE channel estimation; RAKE receiver; Wiener channel estimator cancellation; Wiener filtering; indoor radio; maximum likelihood channel estimation; mobile communication downlink; mobile user equipment; multipath interference cancellation; phasor estimation; simulation; Channel estimation; Delay; Downlink; Fading; Fingers; Interference cancellation; Multipath channels; RAKE receivers; Signal processing algorithms; Transmitters;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944636
