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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Reliability-guaranteed multipath allocation algorithm in mobile network

  • Jaewook, Lee (Network Research Division, Electronics and Telecommunications Research Institute (ETRI)) ;
  • Haneul, Ko (The Department of Electronic Engineering, Kyung Hee University)
  • Received : 2022.05.23
  • Accepted : 2022.10.21
  • Published : 2022.12.10
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Abstract

The mobile network allows redundant transmission via disjoint paths to support high-reliability communication (e.g., ultrareliable and low-latency communications [URLLC]). Although redundant transmission can improve communication reliability, it also increases network costs (e.g., traffic and control overhead). In this study, we propose a reliability-guaranteed multipath allocation algorithm (RG-MAA) that allocates appropriate paths by considering the path setup time and dynamicity of the reliability paths. We develop an optimization problem using a constrained Markov decision process (CMDP) to minimize network costs while ensuring the required communication reliability. The evaluation results show that RG-MAA can reduce network costs by up to 30% compared with the scheme that uses all possible paths while ensuring the required communication reliability.

Keywords

Acknowledgement

This research was supported by the Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT) (no. 2020-0-00974, Development of ultrareliable and low-latency 5G+ core network and TSN switch technologies).

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