Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems
A channel estimation method was proposed based on decision directed technique and pilot tracking for OFDM WLANS with mobile terminals. The result of training sequence based estimation was used as the initialization of decision directed technique. With the help of the decision symbols, the statistica...
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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/74661788/ |
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| _version_ | 1841537407238799360 |
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| author | CHEN Hui CHEN Xiao-guang |
| author_facet | CHEN Hui CHEN Xiao-guang |
| author_sort | CHEN Hui |
| collection | DOAJ |
| description | A channel estimation method was proposed based on decision directed technique and pilot tracking for OFDM WLANS with mobile terminals. The result of training sequence based estimation was used as the initialization of decision directed technique. With the help of the decision symbols, the statistical characteristics of the transmitted data via the fading channel were applied for the channel estimation. Some reliable estimated results combined with pilot were used to track the change of the fading channel. The simulation results show that the proposed method has better performance than training sequence based or pilots based channel estimation method. |
| format | Article |
| id | doaj-art-bb29750a953e4a24b22a9fb0247fde60 |
| 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-bb29750a953e4a24b22a9fb0247fde602025-01-14T08:37:47ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-011574661788Channel estimation for time varying channel based on decision directed technique in OFDM mobile systemsCHEN HuiCHEN Xiao-guangA channel estimation method was proposed based on decision directed technique and pilot tracking for OFDM WLANS with mobile terminals. The result of training sequence based estimation was used as the initialization of decision directed technique. With the help of the decision symbols, the statistical characteristics of the transmitted data via the fading channel were applied for the channel estimation. Some reliable estimated results combined with pilot were used to track the change of the fading channel. The simulation results show that the proposed method has better performance than training sequence based or pilots based channel estimation method.http://www.joconline.com.cn/zh/article/74661788/OFDMtime varying channelDoppler shiftdecision directed estimationpilotstraining sequencechannel estimation |
| spellingShingle | CHEN Hui CHEN Xiao-guang Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems Tongxin xuebao OFDM time varying channel Doppler shift decision directed estimation pilots training sequence channel estimation |
| title | Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems |
| title_full | Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems |
| title_fullStr | Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems |
| title_full_unstemmed | Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems |
| title_short | Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems |
| title_sort | channel estimation for time varying channel based on decision directed technique in ofdm mobile systems |
| topic | OFDM time varying channel Doppler shift decision directed estimation pilots training sequence channel estimation |
| url | http://www.joconline.com.cn/zh/article/74661788/ |
| work_keys_str_mv | AT chenhui channelestimationfortimevaryingchannelbasedondecisiondirectedtechniqueinofdmmobilesystems AT chenxiaoguang channelestimationfortimevaryingchannelbasedondecisiondirectedtechniqueinofdmmobilesystems |