Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems
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 propose a superimposed channel training algorithm to estimate the individual channel state information(CSI) of the...
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| Other Authors: | |
| Format: | Conference Paper |
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IEEE
2014
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| Subjects: | |
| Online Access: | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6979920 http://hdl.handle.net/20.500.11937/31580 |
| _version_ | 1848753419456610304 |
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| author | Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. |
| author2 | Stephen Hanly |
| author_facet | Stephen Hanly 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 propose a superimposed channel training algorithm to estimate the individual channel state information(CSI) of the first-hop and second-hop links for two-way MIMO relay systems with frequency-selective fading channels. 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. We also derive the optimal power allocation between the source and relay trainingsequences. Numerical examples are shown to demonstrate the performance of the proposed algorithm. |
| first_indexed | 2025-11-14T08:24:13Z |
| format | Conference Paper |
| id | curtin-20.500.11937-31580 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:24:13Z |
| publishDate | 2014 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-315802017-01-30T13:26:14Z Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. Stephen Hanly superimposed training Channel estimation MMSE MIMO two-way relay 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 propose a superimposed channel training algorithm to estimate the individual channel state information(CSI) of the first-hop and second-hop links for two-way MIMO relay systems with frequency-selective fading channels. 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. We also derive the optimal power allocation between the source and relay trainingsequences. Numerical examples are shown to demonstrate the performance of the proposed algorithm. 2014 Conference Paper http://hdl.handle.net/20.500.11937/31580 http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6979920 IEEE fulltext |
| spellingShingle | superimposed training Channel estimation MMSE MIMO two-way relay frequency-selective fading Chiong, Choo Wee Raymond Rong, Yue Xiang, Y. Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title | Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title_full | Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title_fullStr | Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title_full_unstemmed | Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title_short | Channel Estimation for Frequency-Selective Two-Way MIMO Relay Systems |
| title_sort | channel estimation for frequency-selective two-way mimo relay systems |
| topic | superimposed training Channel estimation MMSE MIMO two-way relay frequency-selective fading |
| url | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6979920 http://hdl.handle.net/20.500.11937/31580 |