Coalition Formation Game Based Access Point Selection for LTE-U and Wi-Fi Coexistence

Yaodong Zhang, Chunxiao Jiang, Jingjing Wang, Zhu Han, Jian Yuan, Jiannong Cao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

As a promising solution for the next generation mobile networks (5G) deployment, long term evolution-unlicensed (LTE-U) is expected to improve spectrum utilization and channel capacity, which is beneficial for the industrial Internet of Things integrating many heterogeneous networks. However, such technology migration can potentially induce severe interference to the devices and networks originally operating on unlicensed bands, especially to the Wi-Fi network. In this paper, first of all, we emulate the coexistence of LTE-U networks and Wi-Fi networks, and experimentally evaluate their mutual interference relying on deploying time division duplex based OpenWrt wireless routers. Moreover, an LTE-U and Wi-Fi coexistence mechanism is proposed, where users with diverse traffic demands are capable of accessing either the public LTE-U network or its nearby Wi-Fi network. Finally, an access point selection algorithm with the aid of coalition formation game is developed for improving the system's throughput. Sufficient simulations based on Network Simulator 3 demonstrate that the overall throughput of the LTE-U and Wi-Fi hybrid cosystem outperforms that of the single LTE-U network as well as of the single Wi-Fi network.

Original languageEnglish
Pages (from-to)2653-2665
Number of pages13
JournalIEEE Transactions on Industrial Informatics
Volume14
Issue number6
DOIs
Publication statusPublished - Jun 2018

Keywords

  • Access point (AP) selection
  • coalition formation game
  • industrial Internet of Things
  • long term evolution-unlicensed (LTE-U) and Wi-Fi coexistence

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Information Systems
  • Computer Science Applications
  • Electrical and Electronic Engineering

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