An interference-suppressing RAKE receiver for the CDMA downlink
Mudulodu, S.
Leus, G.
Paulraj, A.
Electr. Eng. Dept., Stanford Univ., CA, USA;
This paper appears in: Signal Processing Letters, IEEE
Publication Date: May 2004
Volume: 11,
Issue: 5
On page(s): 521- 524
ISSN: 1070-9908
INSPEC Accession Number: 7948599
Digital Object Identifier: 10.1109/LSP.2004.826650
Current Version Published: 2004-04-19
Abstract
In this letter, we propose an interference-suppressing RAKE receiver for the code division multiple-access (CDMA) downlink. In the downlink, the received signal has a special structure that makes it possible for a RAKE receiver (which is a simple low-complexity linear receiver) with appropriately chosen weights to suppress interference efficiently. While there have been a few other interference-suppressing RAKE receivers proposed recently, our design is based on a different motivation, and we show that our approach significantly outperforms them especially when the number of active users in the cell is not large.
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