Xie Jindou, Liu Peilong, Huang Linan, Yan Jian, Kuang Linling. SatTED: An End-to-End Approach to Traffic Engineering with Deterministic QoS Guarantees in SDN-Based Satellite Networks. China Communications. 2026, 23(3): 1-20 https://doi.
org/10.23919/JCC.fa.2025-0276.202603
Xie Jindou, Liu Peilong, Huang Linan, Yan Jian, Kuang Linling. SatTED: An End-to-End Approach to Traffic Engineering with Deterministic QoS Guarantees in SDN-Based Satellite Networks. China Communications. 2026, 23(3): 1-20 https://doi. DOI: 10.23919/JCC.fa.2025-0276.202603.
org/10.23919/JCC.fa.2025-0276.202603DOI:
SatTED: An End-to-End Approach to Traffic Engineering with Deterministic QoS Guarantees in SDN-Based Satellite Networks
摘要
Abstract
Ensuring end-to-end quality of service (QoS) for high-value services in satellite networks is challenging due to dynamic network topologies
varying QoS requirements
and the complex resource allocation across satellite beams and inter-satellite links. To this end
we propose a satellite traffic engineering framework with deterministic QoS (SatTED) by jointly optimizing resource allocation across access and bearer subnets.To tackle the complexity of joint scheduling
SatTED adopts a hierarchical logic-based benders decomposition (LBBD) architecture that coordinates access and bearer subnet resources. The master problem optimizes service admission and satellite selection via binary integer programming
while the subproblem handles routing and bandwidth allocation through linear programming relaxation. Key innovat-ions include scenario-cognizant Benders feasibility cuts to accelerate convergence and a critical constraint link preprocessing (CCLP) mechanism that reduces subproblem complexity by 5.15× in large-scale networks. In simulations on a 220-satellite network with 1 000 flows
SatTED improves total service payoff by 32% and increases high-value flow completion rates by 22%.