دورية أكاديمية
A Stochastic Approach for Analysis of Shadowing Effects in Urban Area
| العنوان: | A Stochastic Approach for Analysis of Shadowing Effects in Urban Area |
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| المؤلفون: | Japertas, Saulius, Grimaila, Vitas, Jankuniene, Ruta, Tervydis, Paulius |
| بيانات النشر: | Vysoká škola báňská - Technická univerzita Ostrava |
| سنة النشر: | 2022 |
| المجموعة: | DSpace VŠB-TUO (Vysoká škola báňská - Technická univerzita Ostrava / Technical University of Ostrava) |
| مصطلحات موضوعية: | mobile networks, path loss, radio wave propagation, shadowing effects, statistical spatial channel model |
| الوصف: | 5G networks are started to be deployed in urban areas in the dynamic spectrum sharing mode. Therefore, the analysis of Non-Line-of-Sight (NLOS) shadowing effects behind buildings of different heights becomes particularly important. The shadow- ing of GSM (900 MHz), UMTS (2100 MHz) and LTE (1800 MHz) technologies was investigated in the urban area. The results are examined by using the log-normal path loss model and four different stochastic equations, specifically: normal, log-normal, Rayleigh, and Nak- agami. The results showed that the fluctuations of path losses in the urban area correspond to the model of log- normal path losses. However, path losses for individ- ual buildings do not fit this model. Therefore, stochas- tic methods were used to analyse shadowing effects. A path loss model based on a differential stochastic equation was proposed. This model includes the fol- lowing values: free space losses, path losses disturbance due to the shadowing effect, standard deviation σ, and a freely chosen parameter b. This model allows a very accurate estimate of the path losses of the three tech- nologies. A clear correlation was observed between pa- rameter b and standard deviation σ. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1336-1376 1804-3119 |
| العلاقة: | Advances in electrical and electronic engineering; https://doi.orgTest/ 10.15598/aeee.v20i1.4338; Advances in electrical and electronic engineering. 2022, vol. 20, no. 1, p. 15 - 23 : ill.; http://hdl.handle.net/10084/146025Test |
| DOI: | 10.15598/aeee.v20i1.4338 |
| الإتاحة: | https://doi.org/10.15598/aeee.v20i1.4338Test http://hdl.handle.net/10084/146025Test |
| حقوق: | © Vysoká škola báňská - Technická univerzita Ostrava ; Attribution-NoDerivatives 4.0 International ; http://creativecommons.org/licenses/by-nd/4.0Test/ ; openAccess |
| رقم الانضمام: | edsbas.614D79DC |
| قاعدة البيانات: | BASE |
| تدمد: | 13361376 18043119 |
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| DOI: | 10.15598/aeee.v20i1.4338 |