Shared end-to-content backup path protection in k-node (edge) content connected elastic optical datacenter networks.

Area of Science:

• Computer Science
• Network Engineering
• Telecommunications

Background:

• Existing k-node (edge) content connectivity concepts aim to measure content accessibility and provide network protection.
• K-node (edge) content connected elastic optical datacenter networks (KC-EODN) offer disaster resilience and spectrum efficiency but face resource challenges with dedicated spectrum allocation.

Purpose of the Study:

• To propose a novel spectrum sharing principle for multiple end-to-content paths in KC-EODN.
• To develop a shared end-to-content backup path protection (SEBPP) scheme to improve resource efficiency.
• To minimize the total working and backup spectrum resources in disaster-resilient optical datacenter networks.

Main Methods:

• A novel perfect matching based sharing principle is proposed for spectrum sharing among end-to-content paths.
• The shared end-to-content backup path protection (SEBPP) scheme is presented for KC-EODN.
• An integer linear program (ILP) model and heuristic algorithms are designed to optimize spectrum resource usage.

Main Results:

• The proposed SEBPP scheme significantly reduces spectrum consumption compared to traditional methods.
• Spectrum sharing among end-to-content paths enhances overall resource efficiency in the network.
• The scheme ensures network survivability against natural disasters and multiple failures.

Conclusions:

• The SEBPP scheme effectively balances spectrum efficiency and network survivability in elastic optical datacenter networks.
• The proposed sharing principle and SEBPP scheme offer a practical solution for designing robust and efficient optical datacenter networks.
• This research contributes to the advancement of disaster-resilient and spectrum-efficient network design.