Title
Transmitter diversity for DS-CDMA with MMSE decision feedback
Abstract
We study the forward link of a DS-CDMA system with transmitter diversity, assuming the channel is known at the receiver but not at the transmitter. Space-time coding is compared to orthogonal designs for a block fading channel, including frequency-selective fading. A minimum mean squared error (MMSE) decision-feedback detector (DFD) suppresses multiple-access interference and cancels self-interference from the multiple transmitter antennas. This receiver can be implemented adaptively in the absence of channel estimates. We consider both hard decision-feedback and iterative soft decision-feedback in combination with MAP decoding. Our results show that for the cases considered, the hard and soft DFDs perform close to the receiver with perfect cancellation, which offers significant gain with respect to the orthogonal designs
Year
DOI
Venue
2000
10.1109/GLOCOM.2000.891720
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Keywords
Field
DocType
code division multiple access,diversity reception,encoding,fading channels,feedback,interference suppression,iterative decoding,land mobile radio,least mean squares methods,multiuser channels,radio links,radio transmitters,radiofrequency interference,signal detection,spread spectrum communication,DS-CDMA system,MAP decoding,MMSE decision feedback,MMSE decision-feedback detector,adaptive receiver,block fading channel,forward link,frequency-selective fading,hard decision-feedback,iterative soft decision-feedback,minimum mean squared error,multiple transmitter antennas,multiple-access interference suppression,multiuser channel,orthogonal designs,self-interference cancellation,space-time coding,transmitter diversity
Space–time code,Transmitter,Telecommunications,Computer science,Fading,Single antenna interference cancellation,Minimum mean square error,Communication channel,Algorithm,Real-time computing,Code division multiple access,Spread spectrum
Conference
Volume
ISSN
ISBN
1
1930-529X
0-7803-6451-1
Citations 
PageRank 
References 
6
0.65
4
Authors
2
Name
Order
Citations
PageRank
Phoel, W.G.1393.70
Michael L. Honig22971411.29