Abstract
Massive multiple-input multiple-output (MIMO) system installs a large number of antennas on base station, it requires one radio frequency (RF) chain for each antenna. When the number of antennas is small, the power consumption of the RF chain is negligible compared with the transmitting power. However, with the increase in the number of antennas and the number of RF chains, the ratio of the power consumption of the RF chain to the total power is gradually increasing. Therefore, the energy efficiency (EE) of the system tends to be saturated gradually and decreases with the further increase of antennas. An antenna selection method based on EE in uplink massive MIMO systems is proposed in this paper. Based on the channel state information (CSI) and the 2-norm of channel matrix, the antennas with better CSI are selected for data transmission. By switching of the RF chain among multiple antennas dynamically over time, simulation results show that the EE can be enhanced compared with conventional massive MIMO system, and the trade-off between EE and spectral efficiency (SE) of the system can be achieved.
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18 February 2020
A Correction to this paper has been published: https://doi.org/10.1007/s11036-019-01495-1
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Acknowledgments
This research is supported by the Natural Science Foundation of Liaoning Province of China (Grant No. 20180550239).
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The original version of this article was revised: It contained mistakes in the “author group”, “System model” and “Antenna selection method based on energy efficiency” sections. Full information regarding the corrections made can be found in the erratum/correction for this article.
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Jin, G., Zhao, C., Fan, Z. et al. Antenna Selection in TDD Massive MIMO Systems. Mobile Netw Appl 26, 1831–1837 (2021). https://doi.org/10.1007/s11036-019-01297-5
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DOI: https://doi.org/10.1007/s11036-019-01297-5