User-Number Threshold-Based Base Station On/Off Control for Maximizing Coverage Probability

Jung Hoon Noh, Byungju Lee, Seong Jun Oh

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we investigate the operation of a user-number threshold-based base station (BS) on/off control, in which the BS turns off when the number of users is less than a specific threshold value. This paper presents a space-based analysis of the BS on/off control system to which a stochastic geometric approach is applied. In particular, we derive the approximated closed-form expression of the coverage probability of a homogeneous network (HomNet) with the user-number threshold-based BS on/off control. Moreover, the optimal user-number threshold for maximizing coverage probability is analytically derived. In addition to HomNet, we also derive the approximated closed-form expression of the coverage probability and the optimal user-number thresholds for a heterogeneous network (HetNet). The results show that HetNet, the analysis of which seems intractable, can be analyzed in the form of a linear combination of HomNets with weighted densities. In addition, the optimal user-number threshold of each tier is obtained independently from other tiers. The modeling and analysis presented in this paper are not only limited to the case of user-number threshold-based on/off control, but also applicable to other novel on/off controls with minor modifications. Finally, by comparing the analytical results with the simulated results, the theoretical contributions of this study are validated.

Original languageEnglish
Pages (from-to)3214-3228
Number of pages15
JournalIEEE Transactions on Vehicular Technology
Volume71
Issue number3
DOIs
Publication statusPublished - 2022 Mar 1

Keywords

  • Coverage probability
  • HetNet
  • on/off control
  • point poisson process
  • user-number threshold

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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