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Predictive Forwarding Rule Caching for Latency Reduction in Dynamic SDN.

Doosik Um1, Hyung-Seok Park2, Hyunho Ryu2

  • 1Department of Interdisciplinary Studies (Artificial Intelligence Major), Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.

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Summary
This summary is machine-generated.

The CRIMSON algorithm improves wireless communication for unmanned vehicles by predicting network changes and caching routing rules, significantly reducing data delays.

Keywords:
dynamic network optimizationmobile unmanned swarm nodepredictive forwarding rule cachingsoftware-defined networking

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Area of Science:

  • Computer Science
  • Networking
  • Robotics

Background:

  • Unmanned vehicles in industrial/military settings require reliable wireless communication.
  • Wireless links cause data loss and delays, impacting control and sensor data.
  • Existing distributed routing methods increase network traffic and interference.

Purpose of the Study:

  • To address the challenge of rapid route creation in Software-Defined Networking (SDN) for mobile unmanned systems.
  • To reduce end-to-end latency and data loss in wireless networks for unmanned vehicles.

Main Methods:

  • Introduced the CRIMSON (Cashing Routing Information in Mobile SDN Network) algorithm.
  • Implemented a caching technique for forwarding rules based on predicted link states in SDN.
  • Detected network link state changes due to node mobility and cached new forwarding rules based on predicted topology changes.

Main Results:

  • The CRIMSON algorithm significantly reduces end-to-end latency.
  • Achieved an average latency reduction of 88.96% compared to conventional reactive modes.
  • Achieved an average latency reduction of 59.49% compared to conventional proactive modes.

Conclusions:

  • CRIMSON enhances SDN performance in dynamic wireless environments for unmanned vehicles.
  • The algorithm effectively minimizes latency and data loss, crucial for mission-critical operations.
  • Predictive caching of routing rules is a viable strategy for improving network efficiency.