Security mechanismof an intelligent jammer for high profile security mechanism against improvised explosive device attacks

Abstract

The civilization increases the use of mobile phones which may produce exasperation in some specific locations like libraries, seminar halls, temples, etc., owing to its ringing sound. The other issue due to digitalized network is the lack of mutual authentication in GSM i.e., any mobile phone can authenticate itself to the cell tower or cell site, but not vice versa. Therefore, the use of GSM technology by the terrorist or hijackers is rapidly increased since it is established as a tool for Improvised Explosive Devices (IED) attacks. To avoid these misconducts, GSM or mobile phone jammers are invented and deployed in such locations to resist the usage of mobile phones. It broadcasts an RF signal which is similar to the frequency range of mobile phones to interfere with the cell phone signal that makes no network available display on the mobile phone screen. There are various jammers have been designed in which an intelligent mobile jammer was designed to permit only the emergency calls by using a microcontroller. In this jammer, a successive approximation has been used based on the binary search algorithm for minimizing transmission power of jammer. However, few modifications were required for improving the jamming effect as well detecting and mitigating the jamming attacks in the wireless network. Hence, the major objective of this research is designing an efficient mobile jammer with detecting and mitigating jamming attacks. This research work consists of four phases and they are follows: In the first phase of the research work, an efficient intelligent mobile jammer is designed and developed. In this design, an improved successive approximation-ADC is proposed based on the divide-and-conquer algorithm for achieving parallel processing and reducing both transmission power and design complexity effectively. This proposed ADC produces output voltage range in parallel manner according to the clock and sampling frequency. Thus, this approach saves more transmission power compared to the conventional algorithm. Finally, the experimental results show that the proposed ISARADC-based jammer has high performance in terms of comparator accuracy, Bit Error Rate (BER) and Figure-Of-Merit (FOM) compared to the SAR-ADCbased jammer. In the second phase of the research work, jamming effect is analysed under different scenario. Once an efficient intelligent mobile jammer is designed, the jammer is deployed in the mobile wireless networks. Thus, the GSM jamming is introduced for disrupting the mobile phone frequencies by transmitting the similar frequencies based on the Denial-of-Service (DoS) technique which transmits the noise signal on the same frequencies of the GSM 900MHz and GSM 1800MHz bands. Then, the effects of jamming are analyzed under different scenarios, mobile-service providers and parameters. Moreover, the range of jamming is estimated depending on its deployment, cell deployment and the distance between MS and Base Transceiver Station (BTS). Thus, jamming is introduced effectively on both frequency channels. newline