Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

Journal of Beijing University of Posts and Telecommunications ›› 2022, Vol. 45 ›› Issue (1): 1-6.doi: 10.13190/j.jbupt.2021-048

• PAPERS •     Next Articles

QoS Routing Algorithm in Clustered Self-Organizing Networks

YANG Can1, LUO Tao1, LIU Ying1, LI Zexu2, XU Yongqing2   

  1. 1. China Electronic Technology Group Corporation Seventh Research Institute, Guangzhou 510000, China;
    2. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2021-03-26 Online:2022-02-28 Published:2021-12-16

Abstract: Based on the distributed and clustering network architecture, network nodes can be divided into multiple clusters, which can be managed by their corresponding cluster heads in a collaborative manner. In order to achieve on-demand, efficient matches between the differentiated quality of service (QoS) requirements and the multi-dimensional network resources, a reinforcement learning-based routing algorithm is proposed. The proposed algorithm aims to reduce end-to-end delay and prevent congestion by optimizing the routing path, which can be implemented in both centralized cluster heads and distributed nodes, so as to guarantee the robustness in a dynamic environment. The performance is evaluated by numerical simulations in a network with 100 nodes divided into four regions. The simulation results illustrate that the proposed algorithm can reduce average latency significantly. Besides, the algorithm proposed is superior to the minimum-hop method in terms of rejection rate and resource utilization.

Key words: multi-hop network, quality of service routing, reinforcement learning

CLC Number: