Title :
Equivalence of the Linear Symbol-level MMSE and the Generalized RAKE
Author :
Redekar, Girish A. ; Koilpillai, Ravinder David
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Chennai
Abstract :
Linear detection of the downlink signals of a direct-sequence code division multiple-access (DS-CDMA) system has seen significant research in the past years. Notable amongst such efforts is the generalized RAKE (based on ML criterion) and the RAKE receiver based on symbol-level MMSE. Both these approaches aim to suppress interference even while exploiting diversity. We show analytically that these two approaches are exactly equivalent.
Keywords :
code division multiple access; least mean squares methods; radio receivers; signal detection; spread spectrum communication; DS-CDMA system; ML criterion; RAKE receiver; direct-sequence code division multiple-access; downlink signal linear detection; linear symbol-level MMSE equivalence; Delay; Downlink; Equalizers; Fading; Filters; Gaussian noise; Interference suppression; Multiaccess communication; Multipath channels; Signal detection;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301179
