Two Novel Downlink Precoding Schemes for TDD Massive MIMO Systems

Hui ZHI; Ziju HUANG; Yukun ZHA; Feiyue WANG

doi:10.11999/JEIT200196

Volume 43 Issue 11

Nov. 2021

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Hui ZHI, Ziju HUANG, Yukun ZHA, Feiyue WANG. Two Novel Downlink Precoding Schemes for TDD Massive MIMO Systems[J]. Journal of Electronics & Information Technology, 2021, 43(11): 3111-3121. doi: 10.11999/JEIT200196

Citation:

Hui ZHI, Ziju HUANG, Yukun ZHA, Feiyue WANG. Two Novel Downlink Precoding Schemes for TDD Massive MIMO Systems[J]. Journal of Electronics & Information Technology, 2021, 43(11): 3111-3121. doi: 10.11999/JEIT200196

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Two Novel Downlink Precoding Schemes for TDD Massive MIMO Systems

doi: 10.11999/JEIT200196

Key Laboratory of Computing Intelligent and Signal Processing (Ministry of Education), Anhui University, Hefei 230601, China

Funds: The National Natural Science Foundation of China (62001001), The Natural Science Foundation of Anhui Province (1508085QF125), The College Natural Science Research Project of Anhui Province (KJ2016A042), The Research Start-up Expenses of Anhui University (01001770-10117700011)

Received Date: 2020-03-20
Rev Recd Date: 2021-08-24

Available Online: 2021-09-17

Publish Date: 2021-11-23

Abstract

Abstract

For time-division duplex massive MIMO systems, two new downlink precoding schemes are proposed, namely New Maximum Ratio Combining (NMRC) and New Zero-Forcing (NZF) scheme. Through theoretical analysis, the expressions of downlink signal to interference plus noise ratio and spectral efficiency of target users and non-target users under two new precoding schemes are obtained, and compared with traditional Zero-Forcing (ZF) and Maximum Ratio Combining (MRC) Precoding schemes for downlink signal to interference plus noise ratio, spectrum efficiency and bit error rate performance. The simulation results show that the proposed NMRC and NZF precoding can achieve better performance without increasing the computational complexity compared with the traditional MRC and ZF precoding. Moreover, the new precoding schemes improve the performance of target users while improving the performance of other non-target users.
- Massive MIMO,
- New Maximum Ratio Combining (NMRC) precoding,
- New Zero-Forcing (NZF) precoding

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References(18)

References

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