RT Journal Article
T1 SLA-Driven Traffic Steering in B5G Systems with Network Slicing
A1 Gijón, Carolina
A1 Mahmoodi, Toktam
A1 Toril-Genovés, Matías
A1 Luna-Ramírez, Salvador
A1 Bejarano-Luque, Juan Luis
K1 Redes de banda ancha
AB In 5G and beyond wireless systems, Network Slicing (NS) feature will enable the coexistence of extremely different services by splitting the physical infrastructure into several logical slices tailored for a specific tenant or application. In sliced Radio Access Networks (RANs), an optimal traffic sharing among cells is key to guarantee Service Level Agreement (SLA) compliance while minimizing operation costs. The configuration of network functions leading to that optimal point may depend on the slice, claiming for slice-aware traffic steering strategies. This work presents the first data-driven algorithm for slice-aware traffic steering by tuning handover margins (a.k.a. mobility load balancing) per slice and adjacency with a proportional controller based on SLA criteria. The tuning process is driven by a novel indicator, derived from connection traces, showing the imbalance of SLA compliance among neighbor cells per slice. Performance assessment is carried out with a system-level simulator implementing a realistic sliced RAN offering services with different throughput, latency and reliability requirements. Results show that the proposed algorithm improves the overall SLA compliance by 9% in only 15 minutes of network activity compared to the case of not steering traffic, outperforming two legacy mobility load balancing approaches not driven by SLA.
PB IEEE
YR 2024
FD 2024-03-08
LK https://hdl.handle.net/10630/37551
UL https://hdl.handle.net/10630/37551
LA eng
NO C. Gijón, T. Mahmoodi, M. Toril, S. Luna-Ramírez and J. L. Bejarano-Luque, "SLA-Driven Traffic Steering in B5G Systems With Network Slicing," in IEEE Transactions on Vehicular Technology, vol. 73, no. 8, pp. 11909-11922, Aug. 2024, doi: 10.1109/TVT.2024.3375112
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026