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Summary: Analyzing the MAC-level Behavior of Wireless Networks
in the Wild
Ratul Mahajan
Microsoft Research
Maya Rodrig
University of Washington
David Wetherall
University of Washington
John Zahorjan
University of Washington
ABSTRACT
We present Wit, a non-intrusive tool that builds on passive moni-
toring to analyze the detailed MAC-level behavior of operational
wireless networks. Wit uses three processing steps to construct an
enhanced trace of system activity. First, a robust merging proce-
dure combines the necessarily incomplete views from multiple, in-
dependent monitors into a single, more complete trace of wireless
activity. Next, a novel inference engine based on formal language
methods reconstructs packets that were not captured by any moni-
tor and determines whether each packet was received by its destina-
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