Type of Document Master's Thesis Author Gupta, Vaibhav Author's Email Address vaibhav.gupta@yahoo.com URN etd-11292006-224053 Title A Characterization of Wireless Network Interface Card Active Scanning Algorithms Degree Master of Science Department Computer Science Advisory Committee
Advisor Name Title Dr. Raheem A. Beyah Committee Chair Dr. Anu Bourgeois Committee Member Dr. Xiaolin Hu Committee Member Keywords
- IEEE 802.11 Active Scanning
- Probe Request Frame
- Wireless Network Interface Card
- Host Association
Date of Defense 2006-11-16 Availability unrestricted Abstract In this thesis, we characterize the proprietary active scanning algorithm of several wireless network interface cards. Our experiments are the first of its kind to observe the complete scanning process as the wireless network interface cards probe all the channels in the 2.4GHz spectrum. We discuss the: 1) correlation of channel popularity during active scanning and access point channel deployment popularity; 2) number of probe request frames statistics on each channel; 3) channel probe order; and 4) dwell time.
The knowledge gained from characterizing wireless network interface cards is important for the following reasons: 1) it helps one understand how active scanning is implemented in different hardware and software; 2) it can be useful in identifying a wireless rogue host; 3) it can help implement Active Scanning in network simulators; and 4) it can radically influence research in the familiar fields like link-layer handovers and effective deployment of access points.
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