Informatics and Applications
2024, Volume 18, Issue 2, pp 32-39
ASSESSING THE CHARACTERISTICS OF 5G/6G "NEW RADIO" SYSTEMS WITH USER'S MACRO- AND MICROMOBILITY
- D. Yu. Ostrikova
- E. S. Golos
- V. A. Beschastnyi
- E. A. Machnev
- V. S. Shorgin
- Yu. V. Gaidamaka
Abstract
The performance of 5G/6G cellular "new radio" systems is typically evaluated using static user location and perfectly directional antennas which are justified in the case of regular synchronisation between the user equipment (UE) and the base station (BS). However, in the case of high energy-efficient UEs with limited RedCap functionality, BS is less likely to get information about the quality of the signal received by the device which changes when the UE moves. This leads to the need to investigate the dynamics of the performance indicators of systems with RedCap UEs over time. In the paper, tools of stochastic geometry and random walk theory are used to analyze the spectral efficiency depending on the distance between the BS and the UE and the directionality of the UE antenna at a random moment of time. A numerical experiment has shown that macromobility has a significant impact on the spectral efficiency, the impact of micromobility is smaller and appears only at short time intervals, while the size of the phased antenna array on the BS side practically does not affect the obtained result.
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[+] About this article
Title
ASSESSING THE CHARACTERISTICS OF 5G/6G "NEW RADIO" SYSTEMS WITH USER'S MACRO- AND MICROMOBILITY
Journal
Informatics and Applications
2024, Volume 18, Issue 2, pp 32-39
Cover Date
2024-06-20
DOI
10.14357/19922264240205
Print ISSN
1992-2264
Publisher
Institute of Informatics Problems, Russian Academy of Sciences
Additional Links
Key words
5G new radio; mmWave; sub-THz; micromobility; macromobility; spectral efficiency
Authors
D. Yu. Ostrikova  , E. S. Golos , V. A. Beschastnyi , E. A. Machnev , V. S. Shorgin  , and Yu. V. Gaidamaka ,
Author Affiliations
RUDN University, 6 Miklukho-Maklaya Str., Moscow 117198, Russian Federation
Federal Research Center "Computer Science and Control" of the Russian Academy of Sciences, 44-2 Vavilov Str., Moscow 119333, Russian Federation
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