Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission
A hybrid multiple-input multiple-output (MIMO) scheme capable of switching between non-precoded transmission and covariance-based precoded transmission is proposed. Such a hybrid scheme is desired as the covariance-based precoding gain is insignificant when transmission takes place in lowly correlat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Institution of Engineering and Technology (IET)
2011
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| Online Access: | http://shdl.mmu.edu.my/1912/ http://shdl.mmu.edu.my/1912/1/Hybrid%20multiple-input%20multiple-output%20scheme%20combining%20precoded%20and%20non-precoded%20transmission.pdf |
| _version_ | 1848789912028971008 |
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| author | Halmi, Mohd Hairi Alias, Mohamad Yusoff Chuah, Teong Chee |
| author_facet | Halmi, Mohd Hairi Alias, Mohamad Yusoff Chuah, Teong Chee |
| author_sort | Halmi, Mohd Hairi |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | A hybrid multiple-input multiple-output (MIMO) scheme capable of switching between non-precoded transmission and covariance-based precoded transmission is proposed. Such a hybrid scheme is desired as the covariance-based precoding gain is insignificant when transmission takes place in lowly correlated channels. Such a minor performance gain is not sufficient to justify the high-complexity precoding employed at the transmitter. The proposed scheme does not require a feedback channel or pilot symbols as knowledge of the downlink channel covariance and correlation is made available to the downlink transmitter through direct estimation from the uplink received signal energy. Performance studies carried out in both time division duplex and frequency division duplex systems reveal that the performance of the proposed scheme is on par with that of an existing MIMO precoding scheme with the added advantage of lower complexity and improved system efficiency. |
| first_indexed | 2025-11-14T18:04:15Z |
| format | Article |
| id | mmu-1912 |
| institution | Multimedia University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T18:04:15Z |
| publishDate | 2011 |
| publisher | Institution of Engineering and Technology (IET) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-19122014-09-11T08:15:33Z http://shdl.mmu.edu.my/1912/ Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission Halmi, Mohd Hairi Alias, Mohamad Yusoff Chuah, Teong Chee TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television TA Engineering (General). Civil engineering (General) A hybrid multiple-input multiple-output (MIMO) scheme capable of switching between non-precoded transmission and covariance-based precoded transmission is proposed. Such a hybrid scheme is desired as the covariance-based precoding gain is insignificant when transmission takes place in lowly correlated channels. Such a minor performance gain is not sufficient to justify the high-complexity precoding employed at the transmitter. The proposed scheme does not require a feedback channel or pilot symbols as knowledge of the downlink channel covariance and correlation is made available to the downlink transmitter through direct estimation from the uplink received signal energy. Performance studies carried out in both time division duplex and frequency division duplex systems reveal that the performance of the proposed scheme is on par with that of an existing MIMO precoding scheme with the added advantage of lower complexity and improved system efficiency. Institution of Engineering and Technology (IET) 2011 Article NonPeerReviewed text en http://shdl.mmu.edu.my/1912/1/Hybrid%20multiple-input%20multiple-output%20scheme%20combining%20precoded%20and%20non-precoded%20transmission.pdf Halmi, Mohd Hairi and Alias, Mohamad Yusoff and Chuah, Teong Chee (2011) Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission. IET Microwaves, Antennas & Propagation, 5 (10). pp. 1242-1249. ISSN 1751-8725 http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5961115&tag=1 doi:10.1049/iet-map.2010.0490 doi:10.1049/iet-map.2010.0490 |
| spellingShingle | TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television TA Engineering (General). Civil engineering (General) Halmi, Mohd Hairi Alias, Mohamad Yusoff Chuah, Teong Chee Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title | Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title_full | Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title_fullStr | Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title_full_unstemmed | Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title_short | Hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| title_sort | hybrid multiple-input multiple-output scheme combining precoded and non-precoded transmission |
| topic | TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television TA Engineering (General). Civil engineering (General) |
| url | http://shdl.mmu.edu.my/1912/ http://shdl.mmu.edu.my/1912/ http://shdl.mmu.edu.my/1912/ http://shdl.mmu.edu.my/1912/1/Hybrid%20multiple-input%20multiple-output%20scheme%20combining%20precoded%20and%20non-precoded%20transmission.pdf |