Resource Sharing in Dual-Stack Devices: Opportunistic Bluetooth Transmissions in WLAN Busy Periods

Jonghun Han, Changhee Joo, Saewoong Bahk

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The coexistence problem of different wireless protocols that share a common frequency spectrum has attracted much attention owing to the proliferation of heterogeneous wireless networks in the research community. Recently, Bluetooth (BT) and Wireless LAN (WLAN) protocol stacks have been integrated as a single-chip communication module, and they now even share the antenna as well as the spectrum. In this paper, we show that this integration provides new opportunity for one protocol to better understand the other and to operate in harmony to avoid mutual interference. We develop an Opportunistic Bluetooth Transmission (OBT) scheme that enables a dual stack device having an integrated module to exploit previously-unused deferring times of the WLAN protocol. We evaluate its performance through not only model-based analysis but also practical implementation in a prototype testbed. The results show that the OBT scheme can significantly improve throughput of the dual-stack device.

Original languageEnglish
Article number8268662
Pages (from-to)2396-2407
Number of pages12
JournalIEEE Transactions on Mobile Computing
Issue number10
Publication statusPublished - 2018 Oct 1
Externally publishedYes


  • Dual-stack device
  • WLAN
  • antenna sharing
  • bluetooth
  • heterogeneous networks
  • opportunistic transmissions

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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