Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm
We propose an lp-norm-penalized affine projection algorithm (LP-APA) for broadband multipath adaptive channel estimations. The proposed LP-APA is realized by incorporating an lp-norm into the cost function of the conventional affine projection algorithm (APA) to exploit the sparsity property of the...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/434659 |
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| author | Yingsong Li Wenxing Li Wenhua Yu Jian Wan Zhiwei Li |
| author_facet | Yingsong Li Wenxing Li Wenhua Yu Jian Wan Zhiwei Li |
| author_sort | Yingsong Li |
| collection | DOAJ |
| description | We propose an lp-norm-penalized affine projection algorithm (LP-APA) for broadband multipath adaptive channel estimations. The proposed LP-APA is realized by incorporating an lp-norm into the cost function of the conventional affine projection algorithm (APA) to exploit the sparsity property of the broadband wireless multipath channel, by which the convergence speed and steady-state performance of the APA are significantly improved. The implementation of the LP-APA is equivalent to adding a zero attractor to its iterations. The simulation results, which are obtained from a sparse channel estimation, demonstrate that the proposed LP-APA can efficiently improve channel estimation performance in terms of both the convergence speed and steady-state performance when the channel is exactly sparse. |
| format | Article |
| id | doaj-art-98cfda2295f34b82901a7cb03e43eb4e |
| institution | OA Journals |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-98cfda2295f34b82901a7cb03e43eb4e2025-08-20T02:10:17ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/434659434659Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection AlgorithmYingsong Li0Wenxing Li1Wenhua Yu2Jian Wan3Zhiwei Li4College of Information and Communications Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Information and Communications Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Information and Communications Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Information and Communications Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Electromechanical Engineering, Northeast Forestry University, Harbin 150040, ChinaWe propose an lp-norm-penalized affine projection algorithm (LP-APA) for broadband multipath adaptive channel estimations. The proposed LP-APA is realized by incorporating an lp-norm into the cost function of the conventional affine projection algorithm (APA) to exploit the sparsity property of the broadband wireless multipath channel, by which the convergence speed and steady-state performance of the APA are significantly improved. The implementation of the LP-APA is equivalent to adding a zero attractor to its iterations. The simulation results, which are obtained from a sparse channel estimation, demonstrate that the proposed LP-APA can efficiently improve channel estimation performance in terms of both the convergence speed and steady-state performance when the channel is exactly sparse.http://dx.doi.org/10.1155/2014/434659 |
| spellingShingle | Yingsong Li Wenxing Li Wenhua Yu Jian Wan Zhiwei Li Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm International Journal of Antennas and Propagation |
| title | Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm |
| title_full | Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm |
| title_fullStr | Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm |
| title_full_unstemmed | Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm |
| title_short | Sparse Adaptive Channel Estimation Based on lp-Norm-Penalized Affine Projection Algorithm |
| title_sort | sparse adaptive channel estimation based on lp norm penalized affine projection algorithm |
| url | http://dx.doi.org/10.1155/2014/434659 |
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