Hybrid MMSE precoding for Millimeter-Wave (mmW) Multi-user Massive MIMO systems
Millimeter-wave (mmWave) cellular systems is considered to be the key enabling technology for the future 5G wireless communication systems because of its high data rates, low latency, high system capacity, and huge available bandwidths. However, in order to meet the increasing demand, mmWave comm...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Science & Engineering Research Support society
2017
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/62509/ http://irep.iium.edu.my/62509/ http://irep.iium.edu.my/62509/1/62509_Hybrid%20MMSE%20Precoding.pdf http://irep.iium.edu.my/62509/7/62509_Hybrid%20MMSE%20Precoding%20for%20Millimeter-Wave_WOS.pdf |
| Summary: | Millimeter-wave (mmWave) cellular systems is considered to be the key enabling
technology for the future 5G wireless communication systems because of its high data
rates, low latency, high system capacity, and huge available bandwidths. However, in
order to meet the increasing demand, mmWave communications need to overcome certain
challenges including high path loss and interference which can be reduced by applying
large antenna arrays to achieve high beamforming gains. Although multi-user
beamforming can improve spectral efficiencies, full digital beamforming strategies used
in the conventional microwave systems increase the hardware cost and consumes high
power for large number of antennas in mmW systems. In this paper, a multi-user hybrid
precoding structure is proposed for mmWave massive-MIMO channels utilizing MMSE
precoders at the BS with perfect channel knowledge. Simulations show that the sum-rate
obtained by the proposed hybrid precoding scheme is nearly similar to the single-user
rate and also performs better compared to other hybrid precoding approaches. |
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