Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources
In this paper, we consider a multicasting multiple-input multiple-output (MIMO) relay system where multiple transmitters multicast their own messages to a group of receivers over multiple hops, and all nodes are equipped with multiple antennas. The joint transmit and relay precoding design problem h...
| Main Authors: | , |
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| Format: | Journal Article |
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IEEE
2014
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| Online Access: | http://purl.org/au-research/grants/arc/DP140102131 http://hdl.handle.net/20.500.11937/33726 |
| _version_ | 1848754027156733952 |
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| author | Khandaker, Muhammad Rong, Yue |
| author_facet | Khandaker, Muhammad Rong, Yue |
| author_sort | Khandaker, Muhammad |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, we consider a multicasting multiple-input multiple-output (MIMO) relay system where multiple transmitters multicast their own messages to a group of receivers over multiple hops, and all nodes are equipped with multiple antennas. The joint transmit and relay precoding design problem has been investigated for multicasting multiple data streams based on min–max mean-squared error (MSE) criterion. We aim at minimizing the maximal MSE of the signal waveform estimation among all receivers subjecting to power constraints at the transmitters and all the relay nodes. This problem is highly nonconvex with matrix variables and the exactly optimal solution is very hard to obtain. We develop an iterative algorithm to jointly optimize the transmitter, relay, and receiver matrices by solving convex subproblems. By exploiting the optimal structure of the relay precoding matrices, we then propose a low complexity solution for the problem under some mild approximation. In particular, we show that under (moderately) high signal-to-noise ratio assumption, the min–max optimization problem can be solved using the semidefinite programming technique. Numerical simulations demonstrate the effectiveness of the proposed algorithms. |
| first_indexed | 2025-11-14T08:33:52Z |
| format | Journal Article |
| id | curtin-20.500.11937-33726 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:33:52Z |
| publishDate | 2014 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-337262022-10-12T03:15:23Z Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources Khandaker, Muhammad Rong, Yue precoding multicasting multihop relay multiple sources MIMO relay In this paper, we consider a multicasting multiple-input multiple-output (MIMO) relay system where multiple transmitters multicast their own messages to a group of receivers over multiple hops, and all nodes are equipped with multiple antennas. The joint transmit and relay precoding design problem has been investigated for multicasting multiple data streams based on min–max mean-squared error (MSE) criterion. We aim at minimizing the maximal MSE of the signal waveform estimation among all receivers subjecting to power constraints at the transmitters and all the relay nodes. This problem is highly nonconvex with matrix variables and the exactly optimal solution is very hard to obtain. We develop an iterative algorithm to jointly optimize the transmitter, relay, and receiver matrices by solving convex subproblems. By exploiting the optimal structure of the relay precoding matrices, we then propose a low complexity solution for the problem under some mild approximation. In particular, we show that under (moderately) high signal-to-noise ratio assumption, the min–max optimization problem can be solved using the semidefinite programming technique. Numerical simulations demonstrate the effectiveness of the proposed algorithms. 2014 Journal Article http://hdl.handle.net/20.500.11937/33726 10.1109/TWC.2014.2322361 http://purl.org/au-research/grants/arc/DP140102131 IEEE fulltext |
| spellingShingle | precoding multicasting multihop relay multiple sources MIMO relay Khandaker, Muhammad Rong, Yue Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title | Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title_full | Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title_fullStr | Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title_full_unstemmed | Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title_short | Transceiver optimization for multi-hop MIMO relay multicasting from multiple sources |
| title_sort | transceiver optimization for multi-hop mimo relay multicasting from multiple sources |
| topic | precoding multicasting multihop relay multiple sources MIMO relay |
| url | http://purl.org/au-research/grants/arc/DP140102131 http://hdl.handle.net/20.500.11937/33726 |