Low complexity channel estimation for the WB-CDMA terminal

Author

Batut, Eric ; Arndt, Marylin

Author_Institution

DIH/OCF, France Telecom R&D, Meylan, France

Volume

1

fYear

2001

fDate

2001

Firstpage

404

Abstract

Channel estimation is of crucial importance for tomorrow´s wireless mobile communication systems. However, high-performance algorithms often come at the cost of a high computational complexity, which makes them unsuitable for the terminal equipment. A low-complexity version of an iterative channel estimator is proposed for the 3rd generation WB-CDMA (wideband code division multiple access) terminal. Its performance compares favorably with the ones of the original version. Furthermore, a novel criterion for false-paths detection is introduced, thus avoiding useless computations to be performed later on. Possible improvements are proposed

Keywords

broadband networks; buried object detection; code division multiple access; computational complexity; iterative methods; land mobile radio; multiuser channels; radio equipment; recursive estimation; signal detection; 3rd generation terminal; W-CDMA; WB-CDMA terminal; false-paths detection; high computational complexity; high-performance algorithms; iterative channel estimator; low complexity channel estimation; recursive pilot-aided channel estimation; recursive searcher; terminal equipment; wideband code division multiple access; wireless mobile communication systems; 3G mobile communication; Attenuation; Channel estimation; Delay estimation; Fading; Filters; Multiaccess communication; Multipath channels; RAKE receivers; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944874

Filename

944874