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Latency Reduction in Vehicular Sensing Applications by Dynamic 5G User Plane Function Allocation with Session

Pablo Fondo-Ferreiro1, David Candal-Ventureira1, Francisco Javier González-Castaño1

  • 1Information Technologies Group, atlanTTic, University of Vigo, 36310 Vigo, Spain.

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Summary
This summary is machine-generated.

Dynamic deployment of User Plane Functions (UPFs) at the edge minimizes network hops for 5G vehicular sensing. This approach reduces communication latency for critical applications, enhancing situational awareness.

Keywords:
5G networksUser Plane Function (UPF)edge computinglatency reductionvehicular sensing

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Area of Science:

  • Vehicular communication networks
  • Edge computing
  • 5G wireless technology

Background:

  • Vehicle automation increases demand for real-time data from advanced sensors.
  • 5G networks are crucial for vehicular sensing applications requiring low latency.
  • Edge computing offers proximity to data sources but faces latency challenges.

Purpose of the Study:

  • To propose an optimization framework for dynamic User Plane Function (UPF) deployment in 5G vehicular sensing.
  • To minimize network hops and reduce communication latency between vehicles and edge resources.
  • To ensure session and service continuity during UPF re-assignment.

Main Methods:

  • Developed a Software-Defined-Networking (SDN)-based mechanism for dynamic UPF allocation.
  • Implemented and evaluated various UPF allocation algorithms.
  • Compared dynamic UPF deployment against static, random, and centralized baselines.

Main Results:

  • Dynamic UPF allocation significantly reduces communication latency.
  • The proposed framework outperforms static, random, and centralized deployment strategies.
  • Achieved lower latency compared to baseline UPF deployment methods.

Conclusions:

  • Dynamic UPF deployment is essential for supporting latency-critical vehicular sensing applications.
  • The proposed framework enables feasible operation of applications previously unachievable due to latency constraints.
  • Optimized UPF placement enhances collaborative sensing and situational awareness in automated vehicles.