publication . Conference object . 2004

Techniques to reduce the IEEE 802.11b handoff time

H. Velayos; G. Karlsson;
  • Published: 13 Nov 2004
  • Publisher: IEEE
We analyze the link-layer handoff process in wireless LANs based on the IEEE 802.11b standard and suggests how to reduce its duration. Firstly, we divide the process into three phases: detection, search and execution. Our performance measurements indicate that the detection and search phases are the main contributors to the handoff time. We show that the link-layer detection time can be reduced to three consecutive lost frames. We also show that the search time can be reduced at least by 20% using active scanning with the two timers that control its duration set to 1 ms and 10.24 ms. Several simulations illustrate the achieved reduction in handoff time.
free text keywords: Real-time computing, Phase detector, Computer network, business.industry, business, Handover, Wireless lan, Telecommunications link, Computer science, IEEE 802
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