Channel estimation for MIMO SC-FDE systems via time-domain based approaches
Circularly orthogonal sequences were designed for the time-domain channel estimation in MIMO SC-FDE systems.Firstly,Chu sequences were chosen as the base sequences,which were added by cyclic prefix and cyclic postfix to construct circularly orthogonal training sequences.The channel impulse response...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/74420163/ |
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| _version_ | 1841537819236892672 |
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| author | LI Dan-ping LIU Yi ZHANG Hai-lin |
| author_facet | LI Dan-ping LIU Yi ZHANG Hai-lin |
| author_sort | LI Dan-ping |
| collection | DOAJ |
| description | Circularly orthogonal sequences were designed for the time-domain channel estimation in MIMO SC-FDE systems.Firstly,Chu sequences were chosen as the base sequences,which were added by cyclic prefix and cyclic postfix to construct circularly orthogonal training sequences.The channel impulse response can be estimated by calculating the cross-correlation between the received signal and the corresponding local sequence.Further,a new training sequence structure was presented,in which the original "long" training sequences were replaced by successive and identical "short" sequences.The corresponding estimation algorithm achieves the same performance as "long" sequences based method.Simulation results show that the proposed algorithms can offer good BER performance even at low SNR,due to the successful interference suppression between the antennas and the decrease in the noise variance. |
| format | Article |
| id | doaj-art-b4071fd80f994ea4be0de40bc012c172 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-b4071fd80f994ea4be0de40bc012c1722025-01-14T08:22:58ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-01-013214414974420163Channel estimation for MIMO SC-FDE systems via time-domain based approachesLI Dan-pingLIU YiZHANG Hai-linCircularly orthogonal sequences were designed for the time-domain channel estimation in MIMO SC-FDE systems.Firstly,Chu sequences were chosen as the base sequences,which were added by cyclic prefix and cyclic postfix to construct circularly orthogonal training sequences.The channel impulse response can be estimated by calculating the cross-correlation between the received signal and the corresponding local sequence.Further,a new training sequence structure was presented,in which the original "long" training sequences were replaced by successive and identical "short" sequences.The corresponding estimation algorithm achieves the same performance as "long" sequences based method.Simulation results show that the proposed algorithms can offer good BER performance even at low SNR,due to the successful interference suppression between the antennas and the decrease in the noise variance.http://www.joconline.com.cn/zh/article/74420163/circularly orthogonal sequencestime-domain channel estimationtime-domain correlationMIMO SC-FDE |
| spellingShingle | LI Dan-ping LIU Yi ZHANG Hai-lin Channel estimation for MIMO SC-FDE systems via time-domain based approaches Tongxin xuebao circularly orthogonal sequences time-domain channel estimation time-domain correlation MIMO SC-FDE |
| title | Channel estimation for MIMO SC-FDE systems via time-domain based approaches |
| title_full | Channel estimation for MIMO SC-FDE systems via time-domain based approaches |
| title_fullStr | Channel estimation for MIMO SC-FDE systems via time-domain based approaches |
| title_full_unstemmed | Channel estimation for MIMO SC-FDE systems via time-domain based approaches |
| title_short | Channel estimation for MIMO SC-FDE systems via time-domain based approaches |
| title_sort | channel estimation for mimo sc fde systems via time domain based approaches |
| topic | circularly orthogonal sequences time-domain channel estimation time-domain correlation MIMO SC-FDE |
| url | http://www.joconline.com.cn/zh/article/74420163/ |
| work_keys_str_mv | AT lidanping channelestimationformimoscfdesystemsviatimedomainbasedapproaches AT liuyi channelestimationformimoscfdesystemsviatimedomainbasedapproaches AT zhanghailin channelestimationformimoscfdesystemsviatimedomainbasedapproaches |