Gaussian Modeling of Spatially Correlated LOS/NLOS Maps for Mobile Communications
| Autor: | Stefan Schwarz, Illia Safiulin, Tal Philosof, Markus Rupp |
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| Rok vydání: | 2016 |
| Předmět: |
Computer science
business.industry Gaussian 05 social sciences Transmitter 050801 communication & media studies 020206 networking & telecommunications 02 engineering and technology Base station Non-line-of-sight propagation symbols.namesake 0508 media and communications 0202 electrical engineering electronic engineering information engineering Electronic engineering symbols Wireless Fading business Algorithm ComputingMilieux_MISCELLANEOUS Realization (probability) Communication channel |
| Zdroj: | VTC Fall |
| Popis: | The wireless channel behaves markedly different depending on whether a line-of-sight (LOS) between transmitter and receiver exists or not. State-of-the-art wireless channel models for mobile communications, such as, IST WINNER-II and the 3GPP 3D channel model specified in TR 36.873, define distinct macro- and microscopic fading parameters for LOS and non-LOS (NLOS) situations. Whether a user is in LOS/NLOS is randomly determined by a distance-dependent LOS probability; commonly, for each position in the network, the random realization of LOS/NLOS propagation is independently determined from this distance-dependent LOS probability. Since in this case random draws of neighboring positions are statistically independent, base station assignment regions in system-level simulations become highly irregular. To mitigate this problem, we propose an efficient method to generate spatially correlated LOS/NLOS channel maps that follow predefined distance-dependent LOS probability and additionally enable spatial clustering of LOS positions. |
| Databáze: | OpenAIRE |
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