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Heterogeneous Wireless Network Management

  • Wajahat Qadeer
  • Tajana Simunic Rosing
  • John Ankcorn
  • Venky Krishnan
  • Givanni De Micheli
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3164)

Abstract

Today’s wireless networks are highly heterogeneous, with mobile devices consisting of multiple wireless network interfaces (WNICs). Since battery lifetime is limited, power management of the interfaces has become essential. We develop an integrated approach for the management of power and performance of mobile devices in heterogeneous wireless environments. Our policy decides which WNIC to employ for a given application and optimizes its usage based on the current power and performance needs of the system. The policy dynamically switches between WNICs during program execution if data communication requirements and/or network conditions change. We have experimentally characterized Bluetooth and 802.11b wireless interfaces. Our policy has been implemented on HP’s IPAQ portable device communicating with HP’s HotSpot server [14]. The applications we tested range from MPEG video to email. The results show that our policy offers a large improvement in power savings as compared to singly using 802.11b or Bluetooth while enhancing performance.

Keywords

Power Dissipation Buffer Size Power Management Mobile Host Power Saving 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Wajahat Qadeer
    • 1
  • Tajana Simunic Rosing
    • 1
    • 2
  • John Ankcorn
    • 2
  • Venky Krishnan
    • 2
  • Givanni De Micheli
    • 1
  1. 1.Stanford UniversityStanfordUSA
  2. 2.HP LabsPalo AltoUSA

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