Jamming resiliency and mobility management in cognitive communication networks

Cognitive communication networks, or simply cognitive networks (CNs), are one of the enabling technologies for next generation networks. Through dynamic spectrum access, CNs can make the best out of the underutilized radio spectrum resource. However, security threats can severely affect spectrum utilization in those networks. For instance, jamming can disrupt CN communications if not addressed properly. Addressing jamming while maintaining a desired quality of service (QoS) is not an easy task. In this paper, we propose a time-based countermeasure technique which, unlike its existing frequency-based counterparts, does not assume accessibility to multiple channels. Furthermore, while existing mechanisms assume static users, our proposed approach accounts for mobility of cognitive users (CUs). Our proposed anti-jamming solution exploits and controls the mobility of CUs to improve QoS. Our findings show that our technique is as jamming-resilient as other existing cryptographic techniques, it however achieves better QoS levels.