Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context
A new channel estimation based on compressive sensing(CS)in non-contiguous orthogonal frequency division multiplexing(NC-OFDM)system was proposed.As for NC-OFDM systems in cognitive radio context,the infrastructure of CS-based channel estimation,the design of pilot patterns and the algorithm of chan...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2011-11-01
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| Series: | Tongxin xuebao |
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| Online Access: | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0085-10/ |
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| author | Xue-yun HE Rong-fang SONG Ke-qin ZHOU |
| author_facet | Xue-yun HE Rong-fang SONG Ke-qin ZHOU |
| author_sort | Xue-yun HE |
| collection | DOAJ |
| description | A new channel estimation based on compressive sensing(CS)in non-contiguous orthogonal frequency division multiplexing(NC-OFDM)system was proposed.As for NC-OFDM systems in cognitive radio context,the infrastructure of CS-based channel estimation,the design of pilot patterns and the algorithm of channel estimation were explored.Especially,a criterion of optimizing pilot pattern in the CS-based channel estimation was proposed by minimizing the mutual coherence of the measurement matrix in CS theory.Simulations show that,under many patterns of deactivated subcarriers,CS-based channel estimation obtains much better performance than existing NC-OFDM channel estimation methods in terms of the mean square error of the channel estimate as well as the bit error rate of the system. |
| format | Article |
| id | doaj-art-15a230223e3d4486b2ccec56d81cb3ae |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-11-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-15a230223e3d4486b2ccec56d81cb3ae2025-01-14T06:30:40ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-11-0132859459658838Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio contextXue-yun HERong-fang SONGKe-qin ZHOUA new channel estimation based on compressive sensing(CS)in non-contiguous orthogonal frequency division multiplexing(NC-OFDM)system was proposed.As for NC-OFDM systems in cognitive radio context,the infrastructure of CS-based channel estimation,the design of pilot patterns and the algorithm of channel estimation were explored.Especially,a criterion of optimizing pilot pattern in the CS-based channel estimation was proposed by minimizing the mutual coherence of the measurement matrix in CS theory.Simulations show that,under many patterns of deactivated subcarriers,CS-based channel estimation obtains much better performance than existing NC-OFDM channel estimation methods in terms of the mean square error of the channel estimate as well as the bit error rate of the system.http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0085-10/cognitive radioNC-OFDMcompressive sensingchannel estimation |
| spellingShingle | Xue-yun HE Rong-fang SONG Ke-qin ZHOU Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context Tongxin xuebao cognitive radio NC-OFDM compressive sensing channel estimation |
| title | Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context |
| title_full | Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context |
| title_fullStr | Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context |
| title_full_unstemmed | Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context |
| title_short | Compressive sensing based channel estimation for NC-OFDM systems in cognitive radio context |
| title_sort | compressive sensing based channel estimation for nc ofdm systems in cognitive radio context |
| topic | cognitive radio NC-OFDM compressive sensing channel estimation |
| url | http://www.joconline.com.cn/zh/article/doi/1000-436X(2011)11-0085-10/ |
| work_keys_str_mv | AT xueyunhe compressivesensingbasedchannelestimationforncofdmsystemsincognitiveradiocontext AT rongfangsong compressivesensingbasedchannelestimationforncofdmsystemsincognitiveradiocontext AT keqinzhou compressivesensingbasedchannelestimationforncofdmsystemsincognitiveradiocontext |