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Recent Trend of the Technology Development for Multiuser MIMO based on LTE-Advanced Standard  

Lee, Byung-Ju (Korea University)
Lim, Chae-Man (Samsung Electronics Co.)
Shim, Byong-Hyo (Korea University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.49, no.4, 2012 , pp. 18-25 More about this Journal
Abstract
As the demand for smart phone user is rapidly increasing in recent years, the development of new mobile communication system which provides more improved quality compared to existing 3G standard is highly requested. In this point, the long-term evolution (LTE) system, which was being developed in mid of 2000's, has attracted a considerable attention. The LTE has been developed continuously to result a release 10 which is called as LTE-Advanced (LTE-A) in 2010. Among various features in LTE-A, the multiuser MIMO (MU-MIMO) design is expected to give better quality for throughput, spectral efficiency, and latency. In this paper, we first review the development process from LTE to LTE-A. We also provide the overview of design challenges and specific solutions for MU-MIMO systems developed in LTE-Advanced standard.
Keywords
Multiuser MIMO; LTE-Advanced; CSI Feedback; Reference Signal; Dual Codebook;
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