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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhao, Xiongwen Zhang, Yu Geng, Suiyan Du, Fei Fu, Zihao Zhou, Zhenyu |
| Abstract | In this study, the performances of commonly used precoding schemes are evaluated based on channel measurements carried out at 28 GHz in a railway station for a massive antenna system configuration. And a hybrid precoding algorithm for a fifth generation (5G) multi-user antenna system is proposed and its performance is evaluated based on real measured channels. Specifically, An upper bound for achievable sum-rate of phased zero forcing (PZF) algorithm is derived and a precoding technique by reduction of phase shifters (PSs) named reduced-PZF (RPZF) is proposed, which can obviously reduce power consumption in hybrid precoding systems. In addition, the authors give the closed-form expression for achievable sum-rate when RPZF is used. There are no requirements in the authors’ proposed scheme with complicated matrix decomposition and optimisation techniques. The simulation results show that it is possible to reduce 30 and 50% of the PSs by using the proposed hybrid precoder with better system performance in the line-of-sight (LoS) and non-LoS scenarios, respectively. In addition, the digital PSs with 3 bits low resolution can achieve the similar performance when using analogue ones. |
| Starting Page | 2429 |
| Ending Page | 2435 |
| Page Count | 7 |
| ISSN | 17518628 |
| Volume Number | 13 |
| e-ISSN | 17518636 |
| Issue Number | Issue 16, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/13/16 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5920 |
| Journal | IET Communications |
| Publisher Date | 2019-06-07 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 28 GHz 5G Massive Antenna Multiuser Systems Achievable Sum-rate Antenna Array Authors Channel Measurement Code Commonly Used Precoding Scheme Complicated Matrix Decomposition Fifth Generation Multiuser Antenna System Frequency 28.0 GHz Hybrid Precoder Hybrid Precoding Algorithm Hybrid Precoding System Massive Antenna System Configuration Measured Channel Millimetre Wave MIMO Communication Multi-access System Multiple Access Communication Optimisation Technique Phase Shifter Phase Shifter Reduction Phased Zero Forcing Algorithm Precoding Precoding Technique PSs Radio Link And Equipment Railway Station Reduced-PZF RPZF Similar Performance System Performance Wireless Channel Word Length 3.0 Bit |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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