Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications
This paper considers the transceiver design in a multiuser multiple-input multiple-output (MIMO) full-duplex (FD) amplify-and-forward (AF) relay downlink communication system, where users simultaneously transmit data via an FD relay node. The design incorporates an imperfect loop interference (LI) c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Telecom |
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| Online Access: | https://www.mdpi.com/2673-4001/5/1/11 |
| _version_ | 1797239271637123072 |
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| author | Yunlong Shao Thomas Aaron Gulliver |
| author_facet | Yunlong Shao Thomas Aaron Gulliver |
| author_sort | Yunlong Shao |
| collection | DOAJ |
| description | This paper considers the transceiver design in a multiuser multiple-input multiple-output (MIMO) full-duplex (FD) amplify-and-forward (AF) relay downlink communication system, where users simultaneously transmit data via an FD relay node. The design incorporates an imperfect loop interference (LI) cancellation which results in a residual LI. Linear precoders are employed at the sources and relay, and minimum mean-squared-error (MMSE) combiners are employed at the destinations to mitigate the effect of the residual LI. The corresponding design problem is highly nonconvex, so a closed-form solution is intractable. Thus, an iterative method is developed to solve this optimization problem. Simulation results are presented which show that the proposed iterative algorithm provides better performance than the corresponding half-duplex (HD) solution in terms of the achievable rate under residual LI. |
| first_indexed | 2024-04-24T17:48:53Z |
| format | Article |
| id | doaj.art-e3cfab2c2bbe450a9e892c51c37734ae |
| institution | Directory Open Access Journal |
| issn | 2673-4001 |
| language | English |
| last_indexed | 2024-04-24T17:48:53Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Telecom |
| spelling | doaj.art-e3cfab2c2bbe450a9e892c51c37734ae2024-03-27T14:05:54ZengMDPI AGTelecom2673-40012024-03-015121622710.3390/telecom5010011Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink CommunicationsYunlong Shao0Thomas Aaron Gulliver1Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC V8W 2Y2, CanadaDepartment of Electrical and Computer Engineering, University of Victoria, Victoria, BC V8W 2Y2, CanadaThis paper considers the transceiver design in a multiuser multiple-input multiple-output (MIMO) full-duplex (FD) amplify-and-forward (AF) relay downlink communication system, where users simultaneously transmit data via an FD relay node. The design incorporates an imperfect loop interference (LI) cancellation which results in a residual LI. Linear precoders are employed at the sources and relay, and minimum mean-squared-error (MMSE) combiners are employed at the destinations to mitigate the effect of the residual LI. The corresponding design problem is highly nonconvex, so a closed-form solution is intractable. Thus, an iterative method is developed to solve this optimization problem. Simulation results are presented which show that the proposed iterative algorithm provides better performance than the corresponding half-duplex (HD) solution in terms of the achievable rate under residual LI.https://www.mdpi.com/2673-4001/5/1/11amplify and forward (AF)capacity, downlink, full-duplex (FD)loop interference (LI)MIMOtransceiver |
| spellingShingle | Yunlong Shao Thomas Aaron Gulliver Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications Telecom amplify and forward (AF) capacity, downlink, full-duplex (FD) loop interference (LI) MIMO transceiver |
| title | Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications |
| title_full | Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications |
| title_fullStr | Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications |
| title_full_unstemmed | Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications |
| title_short | Transceiver Optimization for Multiuser Multiple-Input Multiple-Output Full-Duplex Amplify-and-Forward Relay Downlink Communications |
| title_sort | transceiver optimization for multiuser multiple input multiple output full duplex amplify and forward relay downlink communications |
| topic | amplify and forward (AF) capacity, downlink, full-duplex (FD) loop interference (LI) MIMO transceiver |
| url | https://www.mdpi.com/2673-4001/5/1/11 |
| work_keys_str_mv | AT yunlongshao transceiveroptimizationformultiusermultipleinputmultipleoutputfullduplexamplifyandforwardrelaydownlinkcommunications AT thomasaarongulliver transceiveroptimizationformultiusermultipleinputmultipleoutputfullduplexamplifyandforwardrelaydownlinkcommunications |