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• W4200404585 abstract "User Equipment (UE) positioning is an actual topic for research and investigation in Ultra-Dense Networks (UDN) due to transition of 5G and future mobile technologies to mmWave spectrum and narrow beam antenna array wireless communication. Unlike networks of previous generations with two-dimensional (2D) UE localization, 5G UDN applications demand three-dimensional (3D) location estimation with submeter accuracy, especially in so-called enhanced positioning service area. Using range, range difference and bearing processing algorithms with time (TOA), time difference (TDOA) and angle (AOA) of arrival positioning methods respectively usually leads to location accuracy growth with an increase in the number of gNodeB (gNB), gathering primary TOA, TDOA and AOA measurements. However, despite network infrastructure densification, the problem of achieving precise UE positioning still depends on the gNB topology, especially for 3D location case. Well-known criterion for evaluation of sensor geometry on positioning accuracy bounds are so called horizontal (HDOP), vertical (VDOP) and 3D position (PDOP) Dilution of Precision (DOP) factors. Contribution of current research is simulation model, which realizes gNB topology search with optimal in probabilistic sense spatial configuration layout parameters for given HDOP, VDOP or PDOP criterion. Simulation results reveal, that joint TDOA-AOA measurement processing for the case of four gNB leads to satisfactory HDOP, VDOP and PDOP criterions in whole 2D plane of enhanced 5G UDN positioning service area for fixed UE height." @default.
• W4200404585 created "2021-12-31" @default.
• W4200404585 creator A5043339193 @default.
• W4200404585 creator A5080441707 @default.
• W4200404585 date "2021-10-25" @default.
• W4200404585 modified "2023-09-27" @default.
• W4200404585 title "Topology Search Using Dilution of Precision Criterion for Enhanced 5G Positioning Service Area" @default.
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• W4200404585 doi "https://doi.org/10.1109/icumt54235.2021.9631679" @default.
• W4200404585 hasPublicationYear "2021" @default.
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