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Relation between joint optimizations for multiuser MIMO uplink and downlink with imperfect CSI

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dc.contributor.authorDing, M
dc.contributor.authorBlostein, S. D
dc.date.accessioned2022-01-25T06:43:25Z
dc.date.available2022-01-25T06:43:25Z
dc.date.issued2008-03-31
dc.description.abstractJoint linear minimum sum mean-squared error (referred to as MSMSE) transmitter and receiver (transceiver) optimization problems are formulated for multiuser MIMO systems under a sum power constraint assuming imperfect channel state information (CSI). Both the uplink and the dual downlink are considered. Based on the Karush-Kuhn-Tucker (KKT) conditions associated with both problems, a relation between the two problems is discovered, which is termed the uplinkdownlink duality in sum MSE under imperfect CSI. As a result, the MSMSEs in both links are the same and any admissible uplink design satisfying the KKT conditions can be translated for application to the downlink, and vice versa. Simulation results are provided to demonstrate the duality and show the impact of imperfect CSI.en_US
dc.identifier.doi10.1109/ICASSP.2008.4518318en_US
dc.identifier.issn1520-6149
dc.identifier.urihttps://rda.sliit.lk/handle/123456789/761
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.ispartofseries2008 IEEE International Conference on Acoustics, Speech and Signal Processing;Pages 3149-3152
dc.subjectmultiuseren_US
dc.subjectMIMOen_US
dc.subjectchannel state information (CSI)en_US
dc.subjectdualityen_US
dc.titleRelation between joint optimizations for multiuser MIMO uplink and downlink with imperfect CSIen_US
dc.typeArticleen_US
dspace.entity.typePublication

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