Efficient and secure service function chain deployment method for delay optimization in air traffic information...

Area of Science:

• Computer Science
• Network Engineering
• Aerospace Systems

Background:

• Traditional air traffic information networks face limitations in flexibility due to increasing service demands.
• Network Function Virtualization (NFV) offers a solution to enhance network adaptability.
• Service Function Chains (SFC) are crucial for delivering end-to-end air traffic services in NFV environments.

Purpose of the Study:

• To address the critical requirements of low delay and high security in air traffic services.
• To propose an efficient and secure SFC deployment method optimized for delay (ESSFCD-DO).
• To theoretically analyze SFC deployment and establish key principles for delay, security, and cost.

Main Methods:

• Developed the ESSFCD-DO method based on derived SFC deployment principles.
• Incorporated a Virtual Network Function (VNF) aggregation algorithm for security and resource cost optimization (VNFAA-SRCO).
• Utilized a topology-aware VNF deployment algorithm (VNFD-TA) and k-shortest path for virtual link deployment.

Main Results:

• The ESSFCD-DO method demonstrated significant reductions in end-to-end SFC delay.
• Achieved substantial improvements in the long-term revenue-cost ratio.
• Maintained high security and service request acceptance rates compared to existing methods.

Conclusions:

• The ESSFCD-DO method effectively optimizes SFC deployment for air traffic services.
• The approach balances delay, security, and economic factors crucial for air traffic management.
• NFV-based SFC deployment presents a viable solution for modernizing air traffic information networks.