Multi-Branch Tomlinson-Harashima Precoding for Rate Splitting Based Systems with Multiple Antennas
Rate splitting (RS) has emerged as a valuable technology for wireless communications systems due to its capability to deal with uncertainties in the channel state information at the transmitter (CSIT). RS with linear and non-linear precoders, such as the Tomlinson- Harashima (THP) precoder, have bee...
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| Veröffentlicht in: | Proceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) S. 4885 - 4889 |
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06.06.2021
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| ISSN: | 2379-190X |
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| Abstract | Rate splitting (RS) has emerged as a valuable technology for wireless communications systems due to its capability to deal with uncertainties in the channel state information at the transmitter (CSIT). RS with linear and non-linear precoders, such as the Tomlinson- Harashima (THP) precoder, have been explored in the downlink (DL) of multiuser multi antenna systems. In this work, we propose a multi-branch (MB) scheme for a RS-based multiple-antenna system, which creates patterns to order the transmitted symbols and enhances the overall sum rate performance compared to existing approaches. Analytical expressions to describe the signal-to-interference-plus- noise ratio (SINR) and compute the sum rate are derived. Simulation results show that the proposed MB-THP for RS outperforms conventional THP and MB-THP schemes. |
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| AbstractList | Rate splitting (RS) has emerged as a valuable technology for wireless communications systems due to its capability to deal with uncertainties in the channel state information at the transmitter (CSIT). RS with linear and non-linear precoders, such as the Tomlinson- Harashima (THP) precoder, have been explored in the downlink (DL) of multiuser multi antenna systems. In this work, we propose a multi-branch (MB) scheme for a RS-based multiple-antenna system, which creates patterns to order the transmitted symbols and enhances the overall sum rate performance compared to existing approaches. Analytical expressions to describe the signal-to-interference-plus- noise ratio (SINR) and compute the sum rate are derived. Simulation results show that the proposed MB-THP for RS outperforms conventional THP and MB-THP schemes. |
| Author | de Lamare, R. C. Clerckx, B. Flores, A. R. |
| Author_xml | – sequence: 1 givenname: A. R. surname: Flores fullname: Flores, A. R. email: andre.flores@cetuc.puc-rio.br organization: CETUC, Pontifical Catholic University of Rio de Janeiro,Rio de Janeiro,Brazil – sequence: 2 givenname: R. C. surname: de Lamare fullname: de Lamare, R. C. email: delamare@cetuc.puc-rio.br organization: CETUC, Pontifical Catholic University of Rio de Janeiro,Rio de Janeiro,Brazil – sequence: 3 givenname: B. surname: Clerckx fullname: Clerckx, B. email: b.clerckx@imperial.ac.uk organization: Imperial College London,Department of Electrical and Electronic Engineering,London,UK |
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| Snippet | Rate splitting (RS) has emerged as a valuable technology for wireless communications systems due to its capability to deal with uncertainties in the channel... |
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| SubjectTerms | Multi-Branch Multiuser MIMO Precoding Rate-Splitting Robustness Signal processing Simulation Tomlinson-Harashima Precoding Transmitters Uncertainty Wireless communication |
| Title | Multi-Branch Tomlinson-Harashima Precoding for Rate Splitting Based Systems with Multiple Antennas |
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