Influence of Jammers on GSM Mobile Network

Abstract

Cell phone is a device that transmit signal with same frequency at which the GSM works, the jamming is achievement when the mobile in the area where jamming is placed is not working. These places comprise holy places, class rooms, libraries, performance halls, meeting rooms, and other places where silence is required. In this paper, we analyze the effect that a jammer can have on the outage probability of users based on the calculation of the effective jamming to signal ratio (JSR). This will be used to estimate how much mobile provider’s companies; such as Almadar Aljadid Co.; will financially loss due to jamming effect. Simulation results show that the outage probability increased as the JSR increased, and it reaches to approximately 7.5% when the powers of both the BTS and the jammer have equal power. Same results have also been obtained for the shadowing case in which show more than 8% of the users will be out of coverage when 𝑱𝑺𝑹 = 𝟎 𝒅𝑩. Simulations show also the maximum distance that the jammer can affect.