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Conference Paper
Limited Feedback Scheme with Antenna Partitioning for LTE-Pro Based 3D Massive MIMO Systems
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- Authors
- Sang-Lim Ju, Byung-Jin Lee, Nam-Il Kim, Kyung-Seok Kim
- Issue Date
- 2018-05
- Citation
- International Congress on Engineering and Information (ICEAI) 2018, pp.430-439
- Language
- English
- Type
- Conference Paper
- Abstract
- Massive multiple input and multiple output (MIMO) system is one of the core technologies for 5 generation (5G) wireless communications. However, the resource overhead for reference signals increases as the number of antennas in some advanced wireless communication systems including Long-Term Evolution (LTE), so it is practically difficult to apply a large-scale MIMO system. To deal with this problem, this paper investigates the subarray by partitioning of antennas above 16 and the limited feedback scheme with the subarray to transmit the CSI-RS.For legacy 3D MIMO and 3D massive MIMO with the subarray based on LTE-Pro, the spectral efficiency is analyzed in two Third Generation Partnership Project (3GPP) 3D spatial channel model (SCM) scenarios, 3D-Urban Macro (UMa) and 3D-Urban Micro (UMi).
- KSP Keywords
- 3D MIMO, 3D massive MIMO, 3D spatial, CSI-RS, Large-scale MIMO system, Long Term Evolution(LTE), Massive MIMO system, Multiple input multiple output(MIMO), Resource overhead(RO), Spectral efficiency(SE), Third Generation Partnership Project