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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Smart WLAN Discovery for Power Saving of Dual-Mode Terminals

  • Park, Hyunho (Creative Future Research Laboratory, ETRI, Department of Broadband Network Technology, University of Science and Technology) ;
  • Lee, Hyeong Ho (Creative Future Research Laboratory, ETRI, Department of Broadband Network Technology, University of Science and Technology)
  • Received : 2013.08.17
  • Accepted : 2013.09.23
  • Published : 2013.12.31
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Abstract

Dual-mode terminals (DMTs) equipped with cellular and WLAN interfaces have become popular in recent years. Users of DMTs can enjoy high-speed WLAN Internet access and wide area Internet access to cellular networks. However, a DMT may consume power inefficiently when discovering a WLAN with inherently limited service coverage. In this letter, we propose to use smart WLAN discovery (SWD) to minimize the power consumption required for WLAN discovery. To minimize the power consumption of a DMT, an SWD DMT activates its WLAN interface only when the DMT transfers data within the WLAN coverage area. The simulation results of SWD show an improved power-saving performance compared to previous WLAN discovery schemes.

Keywords

References

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