RT Journal Article
T1 Remote Radio Head Clustering in 5G HetNets by Graph Partitioning.
A1 Sánchez Martín, Joaquín Manuel
A1 Toril-Genovés, Matías
A1 Gijón Martín, Carolina
A1 Luna-Ramírez, Salvador
A1 García-Corrales, Celia
K1 Sistemas de comunicaciones móviles
K1 Procesado de señales
AB In 5G cellular systems, network densification is a key technique to cope with the strong increaseof traffic volume in mobile communications. The deployment of indoor small cells offloads macrocells at thecost of increasing network complexity. In this work, a methodology for planning Centralized-Radio AccessNetworks (C-RANs) comprising macrocells and small cells is proposed. The aim is to group Radio RemoteHeads (RRH) into Base Band Unit (BBU) pools and coordination sets (a.k.a. BBU planning) to maximizeuser throughput. To this end, the above assignment problem is formulated as a graph partitioning problem,which is solved by graph theory algorithms. Method assessment is carried out by using a radio planningtool that implements a novel analytical system model to check spectral efficiency and resource allocation.Different BBU planning strategies are first compared, and the impact of Inter-Cell Interference Coordination(ICIC), Coordinated Multi-Point Transmission/Reception (CoMP) and Multi-Connectivity (MC) onnetwork performance with the best BBU plan is then assessed under different system loads and coordinationconstraints. Results show that the selection of a proper graph partitioning scheme for RRH clustering is keyto ensure that the above schemes improve system capacity in heterogeneous environments.
PB IEEE
YR 2025
FD 2025-10-03
LK https://hdl.handle.net/10630/44908
UL https://hdl.handle.net/10630/44908
LA eng
NO J. M. Sánchez-Martín, M. Toril, C. Gijón, S. Luna-Ramírez and C. García-Corrales, "Remote Radio Head Clustering in 5G HetNets by Graph Partitioning," in IEEE Open Journal of Vehicular Technology, vol. 6, pp. 2876-2890, 2025, doi: 10.1109/OJVT.2025.3617526. keywords: {Intercell interference;Throughput;Planning;Partitioning algorithms;Resource management;Base stations;5G mobile communication;Power demand;Interference;Graph theory;Cloud-RAN;base band unit;coordination sets;graph partitioning;multi-connectivity},
NO Spanish Ministry of Science and Innovation, and State Research Agency , Ministry of Science, Innovation and Universities and European Regional Development Fund
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 27 feb 2026