Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging
In this paper, we demonstrate the impact of channel aging on the spectral- and energy-efficiency performance of the multi-pair two-way massive MIMO relay (MTW-MMR) systems, where massive antennas are deployed at the relay and the amplify-and-forward (AF) protocol is operated. By assuming the maximum...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8679985/ |
| _version_ | 1819179449845809152 |
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| author | Lixin Li Jiao He Lie-Liang Yang Zhu Han Miao Pan Wei Chen Huisheng Zhang Xu Li |
| author_facet | Lixin Li Jiao He Lie-Liang Yang Zhu Han Miao Pan Wei Chen Huisheng Zhang Xu Li |
| author_sort | Lixin Li |
| collection | DOAJ |
| description | In this paper, we demonstrate the impact of channel aging on the spectral- and energy-efficiency performance of the multi-pair two-way massive MIMO relay (MTW-MMR) systems, where massive antennas are deployed at the relay and the amplify-and-forward (AF) protocol is operated. By assuming the maximum-ratio combining/maximum-ratio transmission (MRC/MRT) or zero-forcing reception/ zero-forcing transmission (ZFR/ZFT) relaying processing, we analyze the spectral efficiency (SE) and energy efficiency (EE) of the MTW-MMR systems experiencing both imperfect channel estimation and channel aging based on the four proposed power-scaling schemes. Furthermore, we compare the performance of the full-duplex (FD)-assisted MTW-MMR systems with that of the half-duplex (HD)-assisted MTW-MMR systems, showing that the FD mode outperforms the HD mode with the interference level not exceeding -15 dB. Our studies show that channel aging may significantly degrade the achievable performance in terms of SE and EE. However, the inter-pair interference caused by the other user pairs and the self-interference can be effectively mitigated by the MRC/MRT processing or ZFR/ZFT processing at the relay. |
| first_indexed | 2024-12-22T21:58:38Z |
| format | Article |
| id | doaj.art-3fcf776355964b7e95434da137f7f42a |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T21:58:38Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-3fcf776355964b7e95434da137f7f42a2022-12-21T18:11:11ZengIEEEIEEE Access2169-35362019-01-017460144603210.1109/ACCESS.2019.29088828679985Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel AgingLixin Li0https://orcid.org/0000-0002-9980-2649Jiao He1Lie-Liang Yang2https://orcid.org/0000-0002-2032-9327Zhu Han3Miao Pan4Wei Chen5https://orcid.org/0000-0002-9066-1448Huisheng Zhang6Xu Li7School of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaXi’an ASN Technology Group Co., Ltd., Xi’an, ChinaSchool of Electronics and Computer Science, The University of Southampton, Southampton, U.K.Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USADepartment of Electrical and Computer Engineering, University of Houston, Houston, TX, USADepartment of Electronics Engineering, Tsinghua University, Beijing, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaSchool of Electronics and Information, Northwestern Polytechnical University, Xi’an, ChinaIn this paper, we demonstrate the impact of channel aging on the spectral- and energy-efficiency performance of the multi-pair two-way massive MIMO relay (MTW-MMR) systems, where massive antennas are deployed at the relay and the amplify-and-forward (AF) protocol is operated. By assuming the maximum-ratio combining/maximum-ratio transmission (MRC/MRT) or zero-forcing reception/ zero-forcing transmission (ZFR/ZFT) relaying processing, we analyze the spectral efficiency (SE) and energy efficiency (EE) of the MTW-MMR systems experiencing both imperfect channel estimation and channel aging based on the four proposed power-scaling schemes. Furthermore, we compare the performance of the full-duplex (FD)-assisted MTW-MMR systems with that of the half-duplex (HD)-assisted MTW-MMR systems, showing that the FD mode outperforms the HD mode with the interference level not exceeding -15 dB. Our studies show that channel aging may significantly degrade the achievable performance in terms of SE and EE. However, the inter-pair interference caused by the other user pairs and the self-interference can be effectively mitigated by the MRC/MRT processing or ZFR/ZFT processing at the relay.https://ieeexplore.ieee.org/document/8679985/Massive MIMOtwo-way relayfull-duplexhalf-duplexchannel agingmaximum-ratio combining/maximum-ratio transmission |
| spellingShingle | Lixin Li Jiao He Lie-Liang Yang Zhu Han Miao Pan Wei Chen Huisheng Zhang Xu Li Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging IEEE Access Massive MIMO two-way relay full-duplex half-duplex channel aging maximum-ratio combining/maximum-ratio transmission |
| title | Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging |
| title_full | Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging |
| title_fullStr | Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging |
| title_full_unstemmed | Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging |
| title_short | Spectral- and Energy-Efficiency of Multi-Pair Two-Way Massive MIMO Relay Systems Experiencing Channel Aging |
| title_sort | spectral and energy efficiency of multi pair two way massive mimo relay systems experiencing channel aging |
| topic | Massive MIMO two-way relay full-duplex half-duplex channel aging maximum-ratio combining/maximum-ratio transmission |
| url | https://ieeexplore.ieee.org/document/8679985/ |
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