April 2011
Intermediate to advanced
368 pages
11h 36m
English
Content preview from Secure Roaming in 802.11 Networks
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Chapter 3
know that its next roaming target should be AP2. In this situation, the reassociation may
commence immediately after breaking the connection with AP1. However, such scanning does
not come without cost because listening on other channels does require that the STA switch its
radio from the current channel to the other channels in order to listen for beacons or initiate
probe-request/-response sequences. In the case where the scanning was interleaved during the
period of association with the BSS of AP1, the loss of connectivity to the DS period will be
short as the target AP has already been identified. If the scanning process was deferred
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