Jul 2026· International Conference on Optical Communications and Networks· pp. 1-3· 0 citations· 14 references
Abstract
This paper proposes a multi-objective Integer Linear Programming (ILP) formulation for optimal virtual Content Delivery Network (vCDN) placement in fixed broadband networks. The proposed framework jointly minimizes backhaul traffic and end-to-end latency across a six-tier topology spanning OLT, Tier 2/Tier 1 aggregation, Provider Edge, Transport Backbone, and International Gateway nodes. Key contributions include a partial caching model with ratio α***(0,1] that increases cache diversity by 1/α (Theorem 1), a view-time threshold mechanism with effective utilization factor ηⱼ, and a placement efficiency metric Φ that quantifies performance gain per unit deployment cost. Proof-of-concept simulation confirms 81.2% average RTT reduction (5.704 ms → 1.075 ms), directly validating the latency component of the ILP objective.
The rapid evolution of beyond-5G and emerging 6G networks is driving the need for flexible, reliable, and cost-efficient virtualized Radio Access Network (vRAN) architectures capable of supporting heterogeneous services such as enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communication (URLLC), and Mass...
Mayank Ramnani, S. Dixit, Sushil Yadav et al.· arXiv.org· 0 citations
This work studies fairness-aware multicast routing under two parameters: the maximum end-to-end delay (Δ) and the inter-destination delay variation (δ) and presents flow-based ILP formulations that treat Δ and δ as either objectives or constraints.
This thesis provides an end-to-end mathematical and machine learning framework for designing dependable, low-latency, and scalable SDN infrastructures.
Simulation results demonstrate that the proposed HRRO algorithm outperforms the conventional Dijkstra, OSPF, and RRO algorithms in reducing end-to-end latency, lowering packet loss rates, and improving network throughput.
Suming Li, Xuan Geng, Fang Cao· International Conference on...· 0 citations
We study the problem of Distributed Unit (DU) & Centralized Unit (CU) placement in Open RAN for reducing the energy footprint of the network, under explicit distance & bandwidth constraints on real-world Radio Unit (RU) topologies. We show that the DU / CU placement can be formulated as a minimum dominating set (MDS) p...
Hiba Hojeij, A. Aravanis, Sahar Hoteit et al.· International Mediterranean...· 0 citations
Space-air-ground integrated networks (SAGINs) offer seamless three-dimensional coverage and strengthened flexibility, which are recognized as a core network architecture of 6G. Software-defined networking (SDN) and network function virtualization (NFV) are two enabling technologies for SAGINs that can be utilized to se...
Liang Liu, Yejun He, Yu-Jie Zhang et al.· IEEE Transactions on Network...· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
