A Dynamically Reconfigurable Transceiver for Software Defined Radio

Muzammil, Rehan; Beg, M. Salim; Jamali, Mohsin M.

doi:10.5120/13344-0716

Cited by 1 publication

(1 citation statement)

References 20 publications

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“…The radio includes a special mixer to change the signal into an Intermediate Frequency (IF) based on the Radio Frequency (RF) if the configuration requires the use of SDR in the Rx mode, or if it requires conversion from the IF mode to the RF mode. It comprises a converter for Digital-to-Analogue Conversion (DAC) and Analogue-to-Digital Conversion (ADC), and an FPGA or digital signal processor for processing signal commands produced from the software of SDR [25] [26]. The GNU-Radio toolkit [5] [27] is the most widely used SDR software environment.…”

Section: Software Defined Radiomentioning

confidence: 99%

Effective Wireless Communication Architecture for Resisting Jamming Attacks

et al. 2020

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Over time, the use of wireless technologies has significantly increased due to bandwidth improvements, cost-effectiveness, and ease of deployment. Owing to the ease of access to the communication medium, wireless communications and technologies are inherently vulnerable to attacks. These attacks include brute force attacks such as jamming attacks and those that target the communication protocol (Wi-Fi and Bluetooth protocols). Thus, there is a need to make wireless communication resilient and secure against attacks. Existing wireless protocols and applications have attempted to address the need to improve systems security as well as privacy. They have been highly effective in addressing privacy issues, but ineffective in addressing security threats like jamming and session hijacking attacks and other types of Denial of Service Attacks. In this paper, we present an "architecture for resilient wireless communications" based on the concept of Moving Target Defense. To increase the difficulty of launching successful attacks and achieve resilient operation, we changed the runtime characteristics of wireless links, such as the modulation type, network address, packet size, and channel operating frequency. The architecture reduces the overhead resulting from changing channel configurations using two communication channels, in which one is used for communication, while the other acts as a standby channel. A prototype was built using Software Defined Radio to test the performance of the architecture. Experimental evaluations showed that the approach was resilient against jamming attacks. We also present a mathematical analysis to demonstrate the difficulty of performing a successful attack against our proposed architecture.

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Section: Software Defined Radiomentioning

confidence: 99%