Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas
Reconfigurable antenna systems have gained much attention for potential use in the next generation wireless systems. However, conventional direction-of-arrival (DoA) estimation algorithms for antenna arrays cannot be used directly in reconfigurable antennas due to different design of the antennas. I...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/1613638 |
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| author | Henna Paaso Aki Hakkarainen Nikhil Gulati Damiano Patron Kapil R. Dandekar Mikko Valkama Aarne Mämmelä |
| author_facet | Henna Paaso Aki Hakkarainen Nikhil Gulati Damiano Patron Kapil R. Dandekar Mikko Valkama Aarne Mämmelä |
| author_sort | Henna Paaso |
| collection | DOAJ |
| description | Reconfigurable antenna systems have gained much attention for potential use in the next generation wireless systems. However, conventional direction-of-arrival (DoA) estimation algorithms for antenna arrays cannot be used directly in reconfigurable antennas due to different design of the antennas. In this paper, we present an adjacent pattern power ratio (APPR) algorithm for two-port composite right/left-handed (CRLH) reconfigurable leaky-wave antennas (LWAs). Additionally, we compare the performances of the APPR algorithm and LWA-based MUSIC algorithms. We study how the computational complexity and the performance of the algorithms depend on number of selected radiation patterns. In addition, we evaluate the performance of the APPR and MUSIC algorithms with numerical simulations as well as with real world indoor measurements having both line-of-sight and non-line-of-sight components. Our performance evaluations show that the DoA estimates are in a considerably good agreement with the real DoAs, especially with the APPR algorithm. In summary, the APPR and MUSIC algorithms for DoA estimation along with the planar and compact LWA layout can be a valuable solution to enhance the performance of the wireless communication in the next generation systems. |
| format | Article |
| id | doaj-art-3e01834eca754dd5a02522a91152d7d9 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-3e01834eca754dd5a02522a91152d7d92025-02-03T01:06:47ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/16136381613638Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable AntennasHenna Paaso0Aki Hakkarainen1Nikhil Gulati2Damiano Patron3Kapil R. Dandekar4Mikko Valkama5Aarne Mämmelä6VTT Technical Research Centre of Finland, Kaitoväylä 1, P.O. Box 1100, 90571 Oulu, FinlandDepartment of Electronics and Communications Engineering, Tampere University of Technology, P.O. Box 553, 33101 Tampere, FinlandDepartment of Electrical and Computer Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USADepartment of Electrical and Computer Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USADepartment of Electrical and Computer Engineering, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USADepartment of Electronics and Communications Engineering, Tampere University of Technology, P.O. Box 553, 33101 Tampere, FinlandVTT Technical Research Centre of Finland, Kaitoväylä 1, P.O. Box 1100, 90571 Oulu, FinlandReconfigurable antenna systems have gained much attention for potential use in the next generation wireless systems. However, conventional direction-of-arrival (DoA) estimation algorithms for antenna arrays cannot be used directly in reconfigurable antennas due to different design of the antennas. In this paper, we present an adjacent pattern power ratio (APPR) algorithm for two-port composite right/left-handed (CRLH) reconfigurable leaky-wave antennas (LWAs). Additionally, we compare the performances of the APPR algorithm and LWA-based MUSIC algorithms. We study how the computational complexity and the performance of the algorithms depend on number of selected radiation patterns. In addition, we evaluate the performance of the APPR and MUSIC algorithms with numerical simulations as well as with real world indoor measurements having both line-of-sight and non-line-of-sight components. Our performance evaluations show that the DoA estimates are in a considerably good agreement with the real DoAs, especially with the APPR algorithm. In summary, the APPR and MUSIC algorithms for DoA estimation along with the planar and compact LWA layout can be a valuable solution to enhance the performance of the wireless communication in the next generation systems.http://dx.doi.org/10.1155/2017/1613638 |
| spellingShingle | Henna Paaso Aki Hakkarainen Nikhil Gulati Damiano Patron Kapil R. Dandekar Mikko Valkama Aarne Mämmelä Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas International Journal of Antennas and Propagation |
| title | Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas |
| title_full | Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas |
| title_fullStr | Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas |
| title_full_unstemmed | Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas |
| title_short | Experimental Results of Novel DoA Estimation Algorithms for Compact Reconfigurable Antennas |
| title_sort | experimental results of novel doa estimation algorithms for compact reconfigurable antennas |
| url | http://dx.doi.org/10.1155/2017/1613638 |
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