Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems
The occurrence of cross-beam interference in the received signal is one of the main problems that limit the possibilities of massive multiple-input–multiple-output technology (massive-MIMO) in fifth-generation (5G) systems. Thus, the evaluation of the level of this interference is one of the most im...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/22/9022 |
| _version_ | 1797457863212269568 |
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| author | Jarosław Wojtuń Cezary Ziółkowski Jan M. Kelner |
| author_facet | Jarosław Wojtuń Cezary Ziółkowski Jan M. Kelner |
| author_sort | Jarosław Wojtuń |
| collection | DOAJ |
| description | The occurrence of cross-beam interference in the received signal is one of the main problems that limit the possibilities of massive multiple-input–multiple-output technology (massive-MIMO) in fifth-generation (5G) systems. Thus, the evaluation of the level of this interference is one of the most important procedures in the spatial planning of currently wireless networks. We propose a novel modification of simple antenna pattern models, which is based only on changing the directivity of real antenna system patterns. This approach is independent of the antenna system’s type, structure, and analytical description. Based on the developed modification, the original methodology for assessing the signal-to-interference ratio (SIR) from adjacent beams of a common antenna system is presented. The change in the radiation direction and the accompanying change in the complex shape and parameters of the real antenna beam pattern is one of the problems that significantly hinders the evaluation of the analyzed interference. Hence, in the presented methodology, we propose using our modification. In this case, the modification is reduced to a proportional change in the directivity concerning the real antenna system, which results from a change in the beam direction. The simulation studies used a multi-ellipsoidal propagation model and a real massive MIMO antenna pattern description from 3GPP. For the SIR error analysis, the 3GPP pattern is used as a reference. The simulation results show that modifying simple antenna pattern models allows us to obtain an SIR error of no more than 3 dB and 0.1 dB under line-of-sight (LOS) and non-LOS conditions, respectively. |
| first_indexed | 2024-03-09T16:28:52Z |
| format | Article |
| id | doaj.art-d548ca1bdbaf415a848d05fe96d0d19c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T16:28:52Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d548ca1bdbaf415a848d05fe96d0d19c2023-11-24T15:05:02ZengMDPI AGSensors1424-82202023-11-012322902210.3390/s23229022Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output SystemsJarosław Wojtuń0Cezary Ziółkowski1Jan M. Kelner2Institute of Communications Systems, Faculty of Electronics, Military University of Technology, 00-908 Warsaw, PolandInstitute of Communications Systems, Faculty of Electronics, Military University of Technology, 00-908 Warsaw, PolandInstitute of Communications Systems, Faculty of Electronics, Military University of Technology, 00-908 Warsaw, PolandThe occurrence of cross-beam interference in the received signal is one of the main problems that limit the possibilities of massive multiple-input–multiple-output technology (massive-MIMO) in fifth-generation (5G) systems. Thus, the evaluation of the level of this interference is one of the most important procedures in the spatial planning of currently wireless networks. We propose a novel modification of simple antenna pattern models, which is based only on changing the directivity of real antenna system patterns. This approach is independent of the antenna system’s type, structure, and analytical description. Based on the developed modification, the original methodology for assessing the signal-to-interference ratio (SIR) from adjacent beams of a common antenna system is presented. The change in the radiation direction and the accompanying change in the complex shape and parameters of the real antenna beam pattern is one of the problems that significantly hinders the evaluation of the analyzed interference. Hence, in the presented methodology, we propose using our modification. In this case, the modification is reduced to a proportional change in the directivity concerning the real antenna system, which results from a change in the beam direction. The simulation studies used a multi-ellipsoidal propagation model and a real massive MIMO antenna pattern description from 3GPP. For the SIR error analysis, the 3GPP pattern is used as a reference. The simulation results show that modifying simple antenna pattern models allows us to obtain an SIR error of no more than 3 dB and 0.1 dB under line-of-sight (LOS) and non-LOS conditions, respectively.https://www.mdpi.com/1424-8220/23/22/9022wireless communications5Gmassive MIMOantenna beam patterninter-beam interferencesignal-to-interference ratio (SIR) |
| spellingShingle | Jarosław Wojtuń Cezary Ziółkowski Jan M. Kelner Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems Sensors wireless communications 5G massive MIMO antenna beam pattern inter-beam interference signal-to-interference ratio (SIR) |
| title | Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems |
| title_full | Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems |
| title_fullStr | Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems |
| title_full_unstemmed | Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems |
| title_short | Modification of Simple Antenna Pattern Models for Inter-Beam Interference Assessment in Massive Multiple-Input–Multiple-Output Systems |
| title_sort | modification of simple antenna pattern models for inter beam interference assessment in massive multiple input multiple output systems |
| topic | wireless communications 5G massive MIMO antenna beam pattern inter-beam interference signal-to-interference ratio (SIR) |
| url | https://www.mdpi.com/1424-8220/23/22/9022 |
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