DocumentCode
1201219
Title
Sparse chip equalizer for DS-CDMA downlink receivers
Author
Kutz, Gideon ; Chass, Amir
Author_Institution
Freescale Semicond. Israel, Herzeliya, Israel
Volume
9
Issue
1
fYear
2005
Firstpage
10
Lastpage
12
Abstract
We present a low complexity sparse chip equalization scheme for DS-CDMA downlink receivers in which only a small number of filter taps are selected to be non-zero, thereby reducing the computational complexity significantly. Low complexity algorithms for selecting the timings and complex amplitudes of the sparse equalizer taps are proposed. The excellent performance achieved by this scheme combined with its low complexity makes it an attractive choice for the DS-CDMA based cellular downlink receivers.
Keywords
cellular radio; code division multiple access; computational complexity; equalisers; radio receivers; spread spectrum communication; DS-CDMA downlink receivers; cellular system; computational complexity; sparse chip equalizer; Computational complexity; Delay; Downlink; Equalizers; Fading; Filtering; Filters; Multiaccess communication; RAKE receivers; Timing;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2005.01015
Filename
1375225
Link To Document