Noncooperative 802.11 MAC Layer Fingerprinting and Tracking of Mobile Devices

Figure 8

The variability (solid line) of fingerprints for nonrandom MACs decreases due to collisions as the test set size increases. The fingerprint stability (dashed line) also slightly decreases due to some bits not being considered as unstable during training (e.g., when the training set is small). Results shown for a training set of 1,000 MACs.

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(b)