Channel estimation for two-way MIMO relay systems in frequency-selective fading environments
In this paper, we investigate the channel estimation problem for two-way multiple-input multiple-output(MIMO) relay communication systems in frequency-selective fading environments. We apply themethod of superimposed channel training to estimate the individual channel state information (CSI) ofthe f...
| 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/20.500.11937/7134 |
| _version_ | 1848745278999363584 |
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| author | Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. |
| author_facet | Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. |
| author_sort | Chiong, Choo Wee Raymond |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, we investigate the channel estimation problem for two-way multiple-input multiple-output(MIMO) relay communication systems in frequency-selective fading environments. We apply themethod of superimposed channel training to estimate the individual channel state information (CSI) ofthe first-hop and second-hop links for two-way MIMO relay systems with frequency-selective fadingchannels. In this algorithm, a relay training sequence is superimposed on the received signals at the relay node to assist the estimation of the second-hop channel matrices. The optimal structure of the source and relay training sequences is derived to minimize the mean-squared error (MSE) of channel estimation. Moreover, the optimal power allocation between the source and relay training sequences is derived to improve the performance of channel estimation. Numerical examples are shown to demonstrate the performance of the proposed superimposed channel training algorithm for two-way MIMO relay systems in frequency-selective fading environments. |
| first_indexed | 2025-11-14T06:14:50Z |
| format | Journal Article |
| id | curtin-20.500.11937-7134 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:14:50Z |
| publishDate | 2014 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-71342022-11-23T09:26:41Z Channel estimation for two-way MIMO relay systems in frequency-selective fading environments Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. two-way - relay superimposed training MIMO relay Channel estimation MMSE power allocation frequency-selective fading In this paper, we investigate the channel estimation problem for two-way multiple-input multiple-output(MIMO) relay communication systems in frequency-selective fading environments. We apply themethod of superimposed channel training to estimate the individual channel state information (CSI) ofthe first-hop and second-hop links for two-way MIMO relay systems with frequency-selective fadingchannels. In this algorithm, a relay training sequence is superimposed on the received signals at the relay node to assist the estimation of the second-hop channel matrices. The optimal structure of the source and relay training sequences is derived to minimize the mean-squared error (MSE) of channel estimation. Moreover, the optimal power allocation between the source and relay training sequences is derived to improve the performance of channel estimation. Numerical examples are shown to demonstrate the performance of the proposed superimposed channel training algorithm for two-way MIMO relay systems in frequency-selective fading environments. 2014 Journal Article http://hdl.handle.net/20.500.11937/7134 10.1109/TWC.2014.2347321 http://purl.org/au-research/grants/arc/DP140102131 http://purl.org/au-research/grants/arc/DP110100736 IEEE fulltext |
| spellingShingle | two-way - relay superimposed training MIMO relay Channel estimation MMSE power allocation frequency-selective fading Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title | Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title_full | Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title_fullStr | Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title_full_unstemmed | Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title_short | Channel estimation for two-way MIMO relay systems in frequency-selective fading environments |
| title_sort | channel estimation for two-way mimo relay systems in frequency-selective fading environments |
| topic | two-way - relay superimposed training MIMO relay Channel estimation MMSE power allocation frequency-selective fading |
| url | http://purl.org/au-research/grants/arc/DP140102131 http://purl.org/au-research/grants/arc/DP140102131 http://hdl.handle.net/20.500.11937/7134 |