Title :
System performance of PMI-based MU-MIMO
Author :
Yingpei Huang ; Kai Niu ; Wenjun Xu
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
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.
Keywords :
Long Term Evolution; MIMO communication; multi-access systems; precoding; IMT advanced performance requirement; LTE; PMI based MU MIMO; cell average spectral efficiency; frequency resource; multiuser MIMO; signal leakage to noise ratio MU MIMO precoding; single user multi antenna technology; spatial correlation; standard specification; system level simulation; system performance; zero forcing; Antennas; Correlation; Downlink; Interference; MIMO; Signal to noise ratio; Throughput; Implicit Feedback; MU-MIMO; Precoding;
Conference_Titel :
Network Infrastructure and Digital Content (IC-NIDC), 2012 3rd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2201-0
DOI :
10.1109/ICNIDC.2012.6418820
