Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems
Although antenna selection is a simple and efficient technique for enhancing the downlink performance of multiuser diversity systems, the large antenna interelement spacing required for achieving spatial diversity is prohibitive for user terminals due to size restrictions. In order to allay this pro...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2012/454210 |
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| author | Elpiniki P. Tsakalaki Osama N. Alrabadi Constantinos B. Papadias Ramjee Prasad |
| author_facet | Elpiniki P. Tsakalaki Osama N. Alrabadi Constantinos B. Papadias Ramjee Prasad |
| author_sort | Elpiniki P. Tsakalaki |
| collection | DOAJ |
| description | Although antenna selection is a simple and efficient technique for enhancing the downlink performance of multiuser diversity systems, the large antenna interelement spacing required for achieving spatial diversity is prohibitive for user terminals due to size restrictions. In order to allay this problem, we propose miniaturized switched beam receiver designs assisted by low-cost passive reflectors. Unlike conventional spatial receive diversity systems, the proposed angular diversity architectures occupy a small volume whereas the antenna system properties are optimized by controlling the strong reactive fields present at small dimensions. The systems are designed for maximum antenna efficiency and low interbeam correlation, thus yielding N practically uncorrelated receive diversity branches. The simulation results show that the proposed enhanced diversity combining systems improve the average throughput of a multiuser network outperforming classical antenna selection especially for small user populations and compact user terminal size. |
| format | Article |
| id | doaj-art-e46908a3e58044669a4c43b299e0164d |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-e46908a3e58044669a4c43b299e0164d2025-08-20T03:26:26ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/454210454210Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity SystemsElpiniki P. Tsakalaki0Osama N. Alrabadi1Constantinos B. Papadias2Ramjee Prasad3Broadband Wireless and Sensor Networks Group, Athens Information Technology, 19002 Athens, GreeceDepartment of Electronic Systems, Aalborg University, 9220 Aalborg East, DenmarkBroadband Wireless and Sensor Networks Group, Athens Information Technology, 19002 Athens, GreeceDepartment of Electronic Systems, Aalborg University, 9220 Aalborg East, DenmarkAlthough antenna selection is a simple and efficient technique for enhancing the downlink performance of multiuser diversity systems, the large antenna interelement spacing required for achieving spatial diversity is prohibitive for user terminals due to size restrictions. In order to allay this problem, we propose miniaturized switched beam receiver designs assisted by low-cost passive reflectors. Unlike conventional spatial receive diversity systems, the proposed angular diversity architectures occupy a small volume whereas the antenna system properties are optimized by controlling the strong reactive fields present at small dimensions. The systems are designed for maximum antenna efficiency and low interbeam correlation, thus yielding N practically uncorrelated receive diversity branches. The simulation results show that the proposed enhanced diversity combining systems improve the average throughput of a multiuser network outperforming classical antenna selection especially for small user populations and compact user terminal size.http://dx.doi.org/10.1155/2012/454210 |
| spellingShingle | Elpiniki P. Tsakalaki Osama N. Alrabadi Constantinos B. Papadias Ramjee Prasad Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems International Journal of Antennas and Propagation |
| title | Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems |
| title_full | Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems |
| title_fullStr | Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems |
| title_full_unstemmed | Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems |
| title_short | Reduced-Complexity Radio Architectures for Enhanced Receive Selection Combining in Multiuser Diversity Systems |
| title_sort | reduced complexity radio architectures for enhanced receive selection combining in multiuser diversity systems |
| url | http://dx.doi.org/10.1155/2012/454210 |
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