Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments
This paper investigates the reconfigurable intelligent surface (RIS)-aided uplink multicell massive multiple-input multiple-output (mMIMO) communication system with transceiver hardware impairments (THWIs), and the practical and feasible two-timescale scheme is used to design the phase shifts of the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/13/4/704 |
| _version_ | 1797298417316134912 |
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| author | Shilong Zhang Weiran Guo Jianxin Dai Feng Zhu |
| author_facet | Shilong Zhang Weiran Guo Jianxin Dai Feng Zhu |
| author_sort | Shilong Zhang |
| collection | DOAJ |
| description | This paper investigates the reconfigurable intelligent surface (RIS)-aided uplink multicell massive multiple-input multiple-output (mMIMO) communication system with transceiver hardware impairments (THWIs), and the practical and feasible two-timescale scheme is used to design the phase shifts of the RIS. We consider the Rician channel model and use maximal-ratio combining (MRC) technology to process the received signal at the base stations (BS). The expression of the uplink achievable rate is derived and analyzed. Moreover, the genetic algorithm (GA) is used to optimize the phase shifts of the RIS to maximize the data rate. Finally, the accuracy of the derived results is verified. The simulation results show that appropriately increasing the number of RIS reflecting elements can compensate for the performance loss caused by inter-cell interference and THWIs and reduce the demand for BS antennas, which can significantly reduce the hardware costs at the BS. |
| first_indexed | 2024-03-07T22:34:34Z |
| format | Article |
| id | doaj.art-77ad275239b04d27943fae88d562e28e |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-07T22:34:34Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-77ad275239b04d27943fae88d562e28e2024-02-23T15:14:43ZengMDPI AGElectronics2079-92922024-02-0113470410.3390/electronics13040704Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware ImpairmentsShilong Zhang0Weiran Guo1Jianxin Dai2Feng Zhu3School of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaThe Science and Technology on Information Systems Engineering Laboratory, Nanjing 210007, ChinaSchool of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaSchool of Communications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, ChinaThis paper investigates the reconfigurable intelligent surface (RIS)-aided uplink multicell massive multiple-input multiple-output (mMIMO) communication system with transceiver hardware impairments (THWIs), and the practical and feasible two-timescale scheme is used to design the phase shifts of the RIS. We consider the Rician channel model and use maximal-ratio combining (MRC) technology to process the received signal at the base stations (BS). The expression of the uplink achievable rate is derived and analyzed. Moreover, the genetic algorithm (GA) is used to optimize the phase shifts of the RIS to maximize the data rate. Finally, the accuracy of the derived results is verified. The simulation results show that appropriately increasing the number of RIS reflecting elements can compensate for the performance loss caused by inter-cell interference and THWIs and reduce the demand for BS antennas, which can significantly reduce the hardware costs at the BS.https://www.mdpi.com/2079-9292/13/4/704two-timescalereconfigurable intelligent surface (RIS)massive multiple-input multiple-output (mMIMO)transceiver hardware impairments (THWIs) |
| spellingShingle | Shilong Zhang Weiran Guo Jianxin Dai Feng Zhu Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments Electronics two-timescale reconfigurable intelligent surface (RIS) massive multiple-input multiple-output (mMIMO) transceiver hardware impairments (THWIs) |
| title | Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments |
| title_full | Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments |
| title_fullStr | Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments |
| title_full_unstemmed | Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments |
| title_short | Two-Timescale Design for RIS-Aided Multicell MIMO Systems with Transceiver Hardware Impairments |
| title_sort | two timescale design for ris aided multicell mimo systems with transceiver hardware impairments |
| topic | two-timescale reconfigurable intelligent surface (RIS) massive multiple-input multiple-output (mMIMO) transceiver hardware impairments (THWIs) |
| url | https://www.mdpi.com/2079-9292/13/4/704 |
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