System performance of PMI-based MU-MIMO

Single-user multi-antenna technologies are well supported in current standard specifications like LTE Release 8. To meet the IMT-Advanced performance requirements, multi-user MIMO is an attractive technology which could improve cell average spectral efficiency in some scenarios by serving multiuser...

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Bibliographic Details
Main Authors: Yingpei Huang, Kai Niu, Wenjun Xu
Format: Conference Proceeding
Language:English
Subjects:
Antennas
Correlation
Downlink
Implicit Feedback
Interference
MIMO
MU-MIMO
Precoding
Signal to noise ratio
Throughput
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Summary:Single-user multi-antenna technologies are well supported in current standard specifications like LTE Release 8. To meet the IMT-Advanced performance requirements, multi-user MIMO is an attractive technology which could improve cell average spectral efficiency in some scenarios by serving multiuser simultaneously on the same frequency resource. In this paper, we focus on zero-forcing (ZF) and signal-leakage-to-noise ratio (SLNR) MU-MIMO precoding with implicit feedback mechanism supported in LTE Release 8. Some system level simulations reveal significant potential gains of MU-MIMO as compared with LTE Release 8 SU-MIMO in terms of cell average when the spatial correlations at evolved NodeB (eNB) are relatively high.
ISSN:2374-0272
DOI:10.1109/ICNIDC.2012.6418820