Selective Active Scanning for Fast Handoff in WLAN using Sensor Networks

  • Sonia Waharte
  • Kevin Ritzenthaler
  • Raouf Boutaba
Conference paper
Part of the IFIP International Federation for Information Processing book series (IFIPAICT, volume 162)


Seamless connectivity in wireless access networks is critical for time-sensitive applications requiring Quality-of-Service guarantees with bounded data transmission delay. Currently, the latency inherent in the handoff process can preclude the successful delivery of such applications by introducing delays up to several seconds. In this paper, we address this issue by proposing an improvement of the access points discovery process at the data link layer. We present a novel WLAN architecture using an overlay sensor network as a control plane. By distributing the information on the current network status to the sensor nodes, we show that handoff latency can be significantly reduced.


Sensor Network Sensor Node Mobile Node Access Point Relay Node 
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

© International Federation for Information Processing 2005

Authors and Affiliations

  • Sonia Waharte
    • 1
  • Kevin Ritzenthaler
    • 1
  • Raouf Boutaba
    • 1
  1. 1.School of Computer ScienceUniversity of WaterlooWaterlooCA

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