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Journal of University of Chinese Academy of Sciences ›› 2022, Vol. 39 ›› Issue (3): 403-409.DOI: 10.7523/j.ucas.2020.0011

• Research Articles • Previous Articles     Next Articles

A low cost multi-armed bandit algorithm for dense wireless network

ZHAO Yao1,2,3, LUO Xiliang1   

  1. 1 School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China;
    2 Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China;
    3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-01-14 Revised:2020-04-20

Abstract: In recent years, people's demand for mobile wireless services has been increasing. In order to meet this challenge, ultra-dense wireless networks are considered to be the infrastructure and important components of the next-generation wireless communication network. Massive deployment of small base stations can reduce the number of network users in each cell, which can in turn provide the users with high-speed and low-latency wireless service. However, the inevitable problem brought with it at the same time is that users will cause frequent network handover when choosing access to ensure that they can access the network with the best service provider. User association problem is often modeled as the online learning model. This paper aims to find an efficient online user association scheme to deal with the additional network performance loss caused by frequent handover. Based on the analysis of the multi-armed bandit (MAB) model, this paper proposes an improved algorithm based on the arm elimination strategy, and demonstrates the effectiveness of the algorithm through rigorous theoretical analysis and numerical simulation experiments.

Key words: online learning, user association, dense network, multi-armed bandit

CLC Number: