Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems
IEEE In this paper, a two-hop non-regenerative multiple-input multiple-output (MIMO) relay system is investigated, where the relay node relies on harvesting the radio frequency energy transferred from the source node to forward information from source to destination. We consider the time switching (...
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| Format: | Journal Article |
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Institute of Electrical and Electronics Engineers
2018
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| Online Access: | http://purl.org/au-research/grants/arc/DP140102131 http://hdl.handle.net/20.500.11937/69752 |
| _version_ | 1848762125435011072 |
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| author | Li, B. Rong, Yue |
| author_facet | Li, B. Rong, Yue |
| author_sort | Li, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | IEEE In this paper, a two-hop non-regenerative multiple-input multiple-output (MIMO) relay system is investigated, where the relay node relies on harvesting the radio frequency energy transferred from the source node to forward information from source to destination. We consider the time switching (TS) protocol between wireless information and energy transfer. In particular, we propose a more general energy consumption constraint at the source node during the information and energy transfer, which includes the constant power constraints used in existing works as special cases. We study the joint optimization of the source precoding matrices, the relay amplifying matrix, and the TS factor to maximize the source-destination mutual information (MI). The optimal structure of the source and relay matrices is derived, which reduces the original transceiver optimization problem to a simpler power allocation problem. We propose a primal decomposition based algorithm and an upper bound based approach to efficiently solve the power allocation problem. The first algorithm achieves the global optimum, whereas the latter one has a lower computational complexity. Numerical simulations show that both proposed algorithms yield much higher system MI and better rate-energy tradeoff than existing approaches. |
| first_indexed | 2025-11-14T10:42:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-69752 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:36Z |
| publishDate | 2018 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-697522023-06-06T08:35:54Z Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems Li, B. Rong, Yue IEEE In this paper, a two-hop non-regenerative multiple-input multiple-output (MIMO) relay system is investigated, where the relay node relies on harvesting the radio frequency energy transferred from the source node to forward information from source to destination. We consider the time switching (TS) protocol between wireless information and energy transfer. In particular, we propose a more general energy consumption constraint at the source node during the information and energy transfer, which includes the constant power constraints used in existing works as special cases. We study the joint optimization of the source precoding matrices, the relay amplifying matrix, and the TS factor to maximize the source-destination mutual information (MI). The optimal structure of the source and relay matrices is derived, which reduces the original transceiver optimization problem to a simpler power allocation problem. We propose a primal decomposition based algorithm and an upper bound based approach to efficiently solve the power allocation problem. The first algorithm achieves the global optimum, whereas the latter one has a lower computational complexity. Numerical simulations show that both proposed algorithms yield much higher system MI and better rate-energy tradeoff than existing approaches. 2018 Journal Article http://hdl.handle.net/20.500.11937/69752 10.1109/TVT.2018.2846556 http://purl.org/au-research/grants/arc/DP140102131 Institute of Electrical and Electronics Engineers fulltext |
| spellingShingle | Li, B. Rong, Yue Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title | Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title_full | Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title_fullStr | Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title_full_unstemmed | Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title_short | Joint Transceiver Optimization for Wireless Information and Energy Transfer in Non-Regenerative MIMO Relay Systems |
| title_sort | joint transceiver optimization for wireless information and energy transfer in non-regenerative mimo relay systems |
| url | http://purl.org/au-research/grants/arc/DP140102131 http://hdl.handle.net/20.500.11937/69752 |