Low complexity MIMO-OFDM channel estimation based on space time block training sequence
In order to improve the performance of MIMO-OFDM channel estimation,the connection between MMSE channel estimator and subspace projecting was analyzed in the context of space time block training sequence firstly.Then the LS channel estimator obtained simply by space time block training sequence was...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74661456/ |
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| _version_ | 1841537348113793024 |
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| author | DONG Liang CAO Xiu-ying BI Guang-guo |
| author_facet | DONG Liang CAO Xiu-ying BI Guang-guo |
| author_sort | DONG Liang |
| collection | DOAJ |
| description | In order to improve the performance of MIMO-OFDM channel estimation,the connection between MMSE channel estimator and subspace projecting was analyzed in the context of space time block training sequence firstly.Then the LS channel estimator obtained simply by space time block training sequence was projected to the signal subspace to get an estimator that was efficient but of low complexity.To further improve the estimation performance,the multipath delay was estimated by FFT,and then a more accurate channel response signal space was obtained,so the performance of subspace projecting was also improved.The efficiency of the algorithms presented is proved by computer simulations. |
| format | Article |
| id | doaj-art-817bbb75c25a4214a1f2f11c999faac9 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2006-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-817bbb75c25a4214a1f2f11c999faac92025-01-14T08:39:04ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-01576374661456Low complexity MIMO-OFDM channel estimation based on space time block training sequenceDONG LiangCAO Xiu-yingBI Guang-guoIn order to improve the performance of MIMO-OFDM channel estimation,the connection between MMSE channel estimator and subspace projecting was analyzed in the context of space time block training sequence firstly.Then the LS channel estimator obtained simply by space time block training sequence was projected to the signal subspace to get an estimator that was efficient but of low complexity.To further improve the estimation performance,the multipath delay was estimated by FFT,and then a more accurate channel response signal space was obtained,so the performance of subspace projecting was also improved.The efficiency of the algorithms presented is proved by computer simulations.http://www.joconline.com.cn/zh/article/74661456/MIMO-OFDMspace time block training sequencesubspace projectingchannel estimation |
| spellingShingle | DONG Liang CAO Xiu-ying BI Guang-guo Low complexity MIMO-OFDM channel estimation based on space time block training sequence Tongxin xuebao MIMO-OFDM space time block training sequence subspace projecting channel estimation |
| title | Low complexity MIMO-OFDM channel estimation based on space time block training sequence |
| title_full | Low complexity MIMO-OFDM channel estimation based on space time block training sequence |
| title_fullStr | Low complexity MIMO-OFDM channel estimation based on space time block training sequence |
| title_full_unstemmed | Low complexity MIMO-OFDM channel estimation based on space time block training sequence |
| title_short | Low complexity MIMO-OFDM channel estimation based on space time block training sequence |
| title_sort | low complexity mimo ofdm channel estimation based on space time block training sequence |
| topic | MIMO-OFDM space time block training sequence subspace projecting channel estimation |
| url | http://www.joconline.com.cn/zh/article/74661456/ |
| work_keys_str_mv | AT dongliang lowcomplexitymimoofdmchannelestimationbasedonspacetimeblocktrainingsequence AT caoxiuying lowcomplexitymimoofdmchannelestimationbasedonspacetimeblocktrainingsequence AT biguangguo lowcomplexitymimoofdmchannelestimationbasedonspacetimeblocktrainingsequence |