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Telfor Journal
2019, vol. 11, br. 2, str. 84-89
jezik rada: engleski
vrsta rada: neklasifikovan
doi:10.5937/telfor1902084M


An investigation of a new GSM systems jamming technique without existing connections disruption
(naslov ne postoji na srpskom)
Institut za telekomunikacije i elektroniku / IRITEL, Beograd

e-adresa: mladenmi@iritel.com, presa@iritel.com, bane@iritel.com, verica@iritel.com, vmatic@iritel.com, lebl@iritel.com

Projekat

Razvoj i realizacija naredne generacije sistema, uređaja i softvera na bazi softverskog radija za radio i radarske mreže (MPNTR - 32051)

Sažetak

(ne postoji na srpskom)
This paper presents a new method for jamming of GSM communications. The aim is to decrease voice connection quality, thus disabling users to understand each other, while keeping established connections. The jamming method parameters depend on the algorithm characteristics implemented in SACCH frame. It is proved for three mobile telephony codecs that it is possible to reach unsatisfactory voice connection quality MOS<2 due to jamming of a GSM communications channel. Errors in data transmission during the periods without jamming also cause voice connection quality impairment and this influence is analyzed. The method performances are compared to other solutions.

Ključne reči

E-model; GSM system jamming; jamming rate; SACCH frame

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