Optimal Multicasting in Millimeter Wave 5G NR with Multi-beam Directional Antennas
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10.1109/TMC.2021.3136298 |
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Título
Optimal Multicasting in Millimeter Wave 5G NR with Multi-beam Directional AntennasAutoría
Fecha de publicación
2021-12Editor
Institute of Electrical and Electronics EngineersISSN
1536-1233; 1558-0660Cita bibliográfica
N. Chukhno et al., "Optimal Multicasting in Millimeter Wave 5G NR With Multi-Beam Directional Antennas," in IEEE Transactions on Mobile Computing, vol. 22, no. 6, pp. 3572-3588, 1 June 2023, doi: 10.1109/TMC.2021.3136298.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://ieeexplore.ieee.org/document/9655483Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
The support of multicast communications in the fifth-generation (5G) New Radio (NR) system poses unique
challenges to system designers. Particularly, the highly directional antennas do not allow to serve all the user ... [+]
The support of multicast communications in the fifth-generation (5G) New Radio (NR) system poses unique
challenges to system designers. Particularly, the highly directional antennas do not allow to serve all the user equipment devices
(UEs) that belong to the same multicast session in a single transmission. However, the capability of modern antenna arrays to
utilize multiple beams simultaneously, with potentially varying half-power beamwidth, adds a new degree of freedom to the UE
scheduling. This work addresses the challenge of optimal multicasting in 5G millimeter wave (mmWave) systems by presenting
a globally optimal solution for multi-beam antenna operation. The optimization problem is formulated as a special case of multi-period variable cost and size bin packing problem that allows to not impose any constraints on the number of the beams and
their configurations. We also propose heuristic solutions having polynomial time complexity. Our results show that for small cell
radii of up to 100 meters, a single beam is always utilized. For higher cell coverage and practical ranges of the number of users
(5-50), the optimal number of beams is upper bounded by 3. [-]
Publicado en
IEEE Transactions on Mobile Computing (TMC), 2023, 22, 6Entidad financiadora
Unión Europea | RUDN University | RFBR
Código del proyecto o subvención
813278 | 9-07-00933 | 20-07-01064
Url de la subvención
https://cordis.europa.eu/project/id/813278/es
Derechos de acceso
info:eu-repo/semantics/restrictedAccess
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