This is the era of Intelligent Cognitive Radio Network (CRN) technology that provides available spectrum with efficient utilization. (CR) must promise to allow interference-free access by users. The paper discusses several attacks and motives attacks. authentication mechanism role prevent for hassle-free utilization demonstrated. In this paper, resolving cognitive network security issues method...

dynamic spectrum access (DSA) that promises to alleviate the spectrum shortage problem in wireless networks. By employing spectrum sensing techniques or referring to the geolocation databases, a CR (or a CR-enabled secondary user) is able to intelligently decide which licensed spectrum band is free for use without causing harmful interference to licensed (or primary) users. Besides, the spectru...

The battlefield has evolved into a mobile and dynamic scenario where soldiers heterogeneous military equipment exchange information in real-time wirelessly. This fact brings to reality the Internet of Battlefield Things (IoBT). Wireless communications are key enablers for IoBT, their management is critical due spectrum scarcity increasing number IoBT devices. In this sense, sensors deployed on ...

Distributed spectrum sensing (DSS) enables a Cognitive Radio (CR) network to reliably detect licensed users and avoid causing interference to licensed communications. The data fusion technique is a key component of DSS. We discuss the Byzantine failure problem in the context of data fusion, which may be caused by either malfunctioning sensing terminals or Spectrum Sensing Data Falsification (SS...

Multiple secondary users (SUs) perform collaborative spectrum sensing (CSS) in cognitive radio networks to improve the performance. However, this system severely degrades with data falsification (SSDF) attacks from a large number of malicious users, i.e., massive SSDF attacks. To mitigate such attacks, we propose joint and access framework. During sensing, each SU compares decisions CSS indepen...

Collaborative Spectrum Sensing (CSS) is an effective approach to improve the detection performance in Cognitive Radio (CR) networks. Inherent characteristics of the CR have imposed some additional security threats to the networks. One of the common threats is Primary User Emulation Attack (PUEA). In PUEA, some malicious users try to imitate primary signal characteristics and defraud the CR user...

Cooperative (spectrum) sensing is a key function for dynamic spectrum access and is essential for avoiding interference with licensed primary users and identifying spectrum holes. A promising approach for effective cooperative sensing over a large geographic region is to rely on special spectrum-sensing providers (SSPs), which outsource spectrum-sensing tasks to distributed mobile users. Its fe...

Address for Correspondence Head of the Department, PG Student, Kamaraj College of Engineering and Technology, Virudhunagar, Tamilnadu India. ABSTRACT In this paper to propose an approach for detecting the presence of malicious attack which is commonly known as primary user emulation attack (PUEA), this type of attack act as the primary signal and delude the secondary user and occupy the whole f...

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