Research Article
YAICD: Yet Another IMSI Catcher Detector in GSM
Table 5
desired parameters along with the threshold and corresponding value.
| | Parameter | Threshold 1 | Value 1 | Threshold 2 | Value 2 |
| | P1 | If 80% of sessions are encrypted | 2 | — | 1 | | P2 | — | 2 | | | | P3 | — | 6 | | | | P4 | — | 1 | | | | P5 | 8000 ms | 1 | | | | P6 | >32 | 1 | | | | P7 | 2000 ms (with IMEISV) | 2 | 2000 ms (without MEISV) | 1 | | P8 | — | 1 | | | | P9 | — | 0.5 | | | | P10 | — | 1 | | | | P11 | — | 1 | | | | P12 | — | 1 | | | | P13 | −57 | 1 | | | | P14 | 1–60 minutes | 1.5 | 61–240 minutes | 0.7 | | P15 | >8 | 1 | | |
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