On the diversity order of vector perturbation precoding with imperfect channel state information
2008 (English)In: 2008 IEEE 9TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, VOLS 1 AND 2, NEW YORK: IEEE , 2008, 211-215 p.Conference paper (Refereed)
We consider vector perturbation precoding over a quasi-static MIMO channel under the assumption of imperfect channel state information (CSI). This is accomplished via a high SNR analysis, specifically targeting the overall system diversity order and the identification of typical errors. The effects of long-term and short-term power constraints, or power allocation policies, are investigated. Our results indicate that under realistic assumptions regarding the channel estimation error the system is mainly interference limited and as such, the particular power constraint does not significantly affect the asymptotic behavior of the error probability. This is in sharp contrast to the case of perfect CSI.
Place, publisher, year, edition, pages
NEW YORK: IEEE , 2008. 211-215 p.
IdentifiersURN: urn:nbn:se:kth:diva-34904ISI: 000263224100043OAI: oai:DiVA.org:kth-34904DiVA: diva2:427982
9th IEEE Workshop on Signal Processing Advances in Wireless Communications Recife, BRAZIL, JUL 06-09, 2008
QC 201106292011-06-292011-06-172011-06-29Bibliographically approved