Interference-Aware User Association and Beam Pair Link Allocation in mm-Wave Cellular Networks

Aleksandar Ichkov, Petri Mähönen, Ljiljana Simić

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

4 Sitaatiot (Scopus)

Abstrakti

We study the problem of joint user association and beam pair link (BPL) allocation in millimeter-wave (mm-wave) cellular networks. We propose two interference-aware strategies – a centralized and a distributed one – and evaluate their performance based on site-specific directional channel data and realistic antenna models. Our results show that using idealized sectored antenna models severely underestimates the spatial interference, considering the non-negligible sidelobes of realistic antenna arrays which strongly limit the achievable spatial separation of the allocated BPLs in mm-wave networks using beam codebooks. We also show that intra-cell interference is the dominant interference component for all allocated users, in contrast to assumptions in the prior literature. By exploiting non line-of-sight BPLs, our interference-aware strategies achieve significant performance gains over interference-agnostic 5G-NR default user association to the strongest base station and BPL, as well as outperforming a centralized, load-balancing literature benchmark. Our proposed strategies rely solely on downlink 5G-NR reference signals for channel state information updates, making them attractive for practical codebook-based mm-wave cellular networks.
AlkuperäiskieliEnglanti
Otsikko2023 IEEE Wireless Communications and Networking Conference (WCNC)
KustantajaIEEE
Sivut1-7
Sivumäärä7
ISBN (elektroninen)978-1-6654-9122-8
ISBN (painettu)978-1-6654-9123-5
DOI - pysyväislinkit
TilaJulkaistu - 29 maalisk. 2023
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Wireless Communications and Networking Conference - Glasgow, United Kingdom, Glasgow, Iso-Britannia
Kesto: 26 maalisk. 202329 maalisk. 2023
https://wcnc2023.ieee-wcnc.org/

Julkaisusarja

NimiIEEE Wireless Communications and Networking Conference
ISSN (elektroninen)1558-2612

Conference

ConferenceIEEE Wireless Communications and Networking Conference
LyhennettäWCNC
Maa/AlueIso-Britannia
KaupunkiGlasgow
Ajanjakso26/03/202329/03/2023
www-osoite

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