Mitigation of Denial of Service Attacks in Software-Defined Cognitive Radio Networks

Software defined networks provide a new network resource management paradigm that address traditional network resources management challenges [1]. While on the other hand, the Cognitive Radio Networks (CRN) is a new paradigm designed to address spectrum scarcity, it implements efficient dynamic spectrum access techniques. CRN enables unlicensed secondary users to use licensed spectrum without interfering with licensed users. These networks are vulnerable to security attacks. Network security design is fundamental to network protection. In this study, we propose a scheme which detects and mitigates the denial of service (DoS) attacks in Software-Defined Cognitive Radio Networks. We design an intrusion detection system (IDS) and investigate the effects of DoS. This IDS is connected to the controller of the Software-Defined Cognitive Radio Network. We focus on the packet drop rate, which is the number of packtes that are dropped when an attack is taking place. The round trip time which is amount of time it takes for packets to be sent while an attack is taking place and throughout. The results show that the scheme is efficient and effective.