Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing
This paper discusses over the air (OTA) testing for multiple input multiple output (MIMO) capable terminals with emphasis on modeling bidirectional spatial channel models in multiprobe anechoic chamber (MPAC) setups. In the literature, work on this topic has been mainly focused on how to emulate dow...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2015/289843 |
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| author | Wei Fan Pekka Kyösti Jesper Ø. Nielsen Lassi Hentilä Gert F. Pedersen |
| author_facet | Wei Fan Pekka Kyösti Jesper Ø. Nielsen Lassi Hentilä Gert F. Pedersen |
| author_sort | Wei Fan |
| collection | DOAJ |
| description | This paper discusses over the air (OTA) testing for multiple input multiple output (MIMO) capable terminals with emphasis on modeling bidirectional spatial channel models in multiprobe anechoic chamber (MPAC) setups. In the literature, work on this topic has been mainly focused on how to emulate downlink channel models, whereas uplink channel is often modeled as free space line-of-sight channel without fading. Modeling realistic bidirectional (i.e., both uplink and downlink) propagation environments is essential to evaluate any bidirectional communication systems. There have been works stressing the importance of emulating full bidirectional channel and proposing possible directions to implement uplink channels in the literature. Nevertheless, there is no currently published work reporting an experimental validation of such concepts. In this paper, a general framework to emulate bidirectional channels for time division duplexing (TDD) and frequency division duplexing (FDD) communication systems is proposed. The proposed technique works for MPAC setups with arbitrary uplink and downlink probe configurations, that is, possibly different probe configurations (e.g., number of probes or their configurations) in the uplink and downlink. The simulation results are further supported by measurements in a practical MPAC setup. The proposed algorithm is shown to be a valid method to emulate bidirectional spatial channel models. |
| format | Article |
| id | doaj-art-443e9590313e4d9085eb0a0d2ad392d9 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-443e9590313e4d9085eb0a0d2ad392d92025-02-03T01:01:22ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/289843289843Emulating Realistic Bidirectional Spatial Channels for MIMO OTA TestingWei Fan0Pekka Kyösti1Jesper Ø. Nielsen2Lassi Hentilä3Gert F. Pedersen4Department of Electronic Systems, Faculty of Engineering and Science, Aalborg University, 9220 Aalborg, DenmarkAnite Telecoms Oy, 90230 Oulu, FinlandDepartment of Electronic Systems, Faculty of Engineering and Science, Aalborg University, 9220 Aalborg, DenmarkAnite Telecoms Oy, 90230 Oulu, FinlandDepartment of Electronic Systems, Faculty of Engineering and Science, Aalborg University, 9220 Aalborg, DenmarkThis paper discusses over the air (OTA) testing for multiple input multiple output (MIMO) capable terminals with emphasis on modeling bidirectional spatial channel models in multiprobe anechoic chamber (MPAC) setups. In the literature, work on this topic has been mainly focused on how to emulate downlink channel models, whereas uplink channel is often modeled as free space line-of-sight channel without fading. Modeling realistic bidirectional (i.e., both uplink and downlink) propagation environments is essential to evaluate any bidirectional communication systems. There have been works stressing the importance of emulating full bidirectional channel and proposing possible directions to implement uplink channels in the literature. Nevertheless, there is no currently published work reporting an experimental validation of such concepts. In this paper, a general framework to emulate bidirectional channels for time division duplexing (TDD) and frequency division duplexing (FDD) communication systems is proposed. The proposed technique works for MPAC setups with arbitrary uplink and downlink probe configurations, that is, possibly different probe configurations (e.g., number of probes or their configurations) in the uplink and downlink. The simulation results are further supported by measurements in a practical MPAC setup. The proposed algorithm is shown to be a valid method to emulate bidirectional spatial channel models.http://dx.doi.org/10.1155/2015/289843 |
| spellingShingle | Wei Fan Pekka Kyösti Jesper Ø. Nielsen Lassi Hentilä Gert F. Pedersen Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing International Journal of Antennas and Propagation |
| title | Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing |
| title_full | Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing |
| title_fullStr | Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing |
| title_full_unstemmed | Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing |
| title_short | Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing |
| title_sort | emulating realistic bidirectional spatial channels for mimo ota testing |
| url | http://dx.doi.org/10.1155/2015/289843 |
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