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Industrial control systems (ICSs) are widely used and vital to industry and society. Their failure can have severe impact on both economics and human life. Hence, these systems have become an attractive target for attacks, both physical and…

Cryptography and Security · Computer Science 2019-10-02 Moshe Kravchik , Asaf Shabtai

Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two promising technologies in the next generation wireless communication systems. The security of a NOMA CR network (CRN) is important but lacks of study. In this paper, a…

Information Theory · Computer Science 2018-02-13 Fuhui Zhou , Zheng Chu , Haijian Sun , Victor C. M. Leung

In this paper, we consider a cognitive setting under the context of cooperative communications, where the cognitive radio (CR) user is assumed to be a self-organized relay for the network. The CR user and the PU are assumed to be energy…

Networking and Internet Architecture · Computer Science 2014-07-10 Ahmed El Shafie , Tamer Khattab , Hussien Saad , Amr Mohamed

In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (primary) users provided that their interference to the primary…

Information Theory · Computer Science 2008-04-23 Lan Zhang , Yan Xin , Ying-Chang Liang

Computer Use Agents (CUAs), autonomous systems that interact with software interfaces via browsers or virtual machines, are rapidly being deployed in consumer and enterprise environments. These agents introduce novel attack surfaces and…

As quantum computing continues to advance, the development of quantum-secure neural networks is crucial to prevent adversarial attacks. This paper proposes three quantum-secure design principles: (1) using post-quantum cryptography, (2)…

Quantum Physics · Physics 2026-04-14 Eric Yocam , Anthony Rizi , Mahesh Kamepalli , Varghese Vaidyan , Yong Wang , Gurcan Comert

Cognitive radio (CR) is to detect the presence of primary users (PUs) reliably in order to reduce the interference to licensed communications. Genetic algorithms (GAs) are well suited for CR optimization problems to increase efficiency of…

Networking and Internet Architecture · Computer Science 2013-04-12 Md. Kamal Hossain , Ayman Abd El-Saleh

In the growing world of the internet, the number of ways to obtain crucial data such as passwords and login credentials, as well as sensitive personal information has expanded. Page impersonation, often known as phishing, is one method of…

Cryptography and Security · Computer Science 2022-09-07 Aman Rangapur , Tarun Kanakam , Dhanvanthini P

Cognitive radio (CR) technology enables an intelligent wireless communication system. CR provides an efficient solution for the inefficient spectrum utilization by allowing dynamic and opportunistic spectrum access. In designing CR…

Networking and Internet Architecture · Computer Science 2016-05-18 R. Z. Abu Samra , H. A. Bany salameh

In this paper, an underlay cognitive radio (CR) multicast network, consisting of a cognitive base station (CBS) and multiple multicast groups of secondary users (SUs), is considered. All SUs, belonging to a particular multicast group, are…

Networking and Internet Architecture · Computer Science 2018-08-31 Sangeeta Bhattacharjee , Tamaghna Acharya , Uma Bhattacharya

Radio Frequency powered Cognitive Radio Networks (RF-CRN) are likely to be the eyes and ears of upcoming modern networks such as Internet of Things (IoT), requiring increased decentralization and autonomous operation. To be considered…

Machine Learning · Computer Science 2020-07-08 Kevin Shen Hoong Ong , Yang Zhang , Dusit Niyato

Spectrum sensing is the challenge for cognitive radio design and implementation, which allows the secondary user to access the primary bands without interference with primary users. Cognitive radios should decide on the best spectrum band…

Other Computer Science · Computer Science 2012-12-04 Dilip s. Aldar

In the evolving landscape of the Internet of Things (IoT), integrating cognitive radio (CR) has become a practical solution to address the challenge of spectrum scarcity, leading to the development of cognitive IoT (CIoT). However, the…

Signal Processing · Electrical Eng. & Systems 2025-12-18 Nadia Abdolkhani , Nada Abdel Khalek , Walaa Hamouda

A fundamental problem in cognitive radio systems is that the cognitive radio is ignorant of the primary channel state and, hence, of the amount of actual harm it inflicts on the primary license holder. Sensing the primary transmitter does…

Networking and Internet Architecture · Computer Science 2012-11-27 Ahmed ElSamadouny , Mohammed Nafie , Ahmed Sultan

Cognitive radio networks (CRNs) are considered a promising solution for spectrum resources scarcity and efficient channel utilization. In this letter, multi-dimensional analytical Markov model based on reservation channel access scheme and…

Signal Processing · Electrical Eng. & Systems 2019-12-30 Ahmed T. El-Toukhy , Huseyin Arslan

In this paper, we consider a time-slotted cognitive radio (CR) setting with buffered and energy harvesting primary and CR users. At the beginning of each time slot, the CR user probabilistically chooses the spectrum sensing duration from a…

Networking and Internet Architecture · Computer Science 2013-09-26 Ahmed El Shafie , Ahmed Sultan

We propose an energy-efficient network architecture that consists of ad hoc (mobile) cognitive radios (CRs) and infrastructure wireless sensor nodes. The sensor nodes within communications range of each CR are grouped into a cluster and the…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-15 Muhammad Usman , Dongsoo Har , Insoo Koo

Wireless energy harvesting is regarded as a promising energy supply alternative for energy-constrained wireless networks. In this paper, a new wireless energy harvesting protocol is proposed for an underlay cognitive relay network with…

Information Theory · Computer Science 2016-01-12 Yuanwei Liu , S. Ali Mousavifar , Yansha Deng , Cyril Leung , Maged Elkashlan

An important first step when deploying a wireless ad hoc network is neighbor discovery in which every node attempts to determine the set of nodes it can communicate with in one wireless hop. In the recent years, cognitive radio (CR)…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-01-09 Yanyan Zeng , K. Alex Mills , Shreyas Gokhale , Neeraj Mittal , S. Venkatesan , R. Chandrasekaran

Wireless networks are a key component of the telecommunications infrastructure in our society, and wireless services become increasingly important as the applications of wireless devices have penetrated every aspect of our lives. Although…

Cryptography and Security · Computer Science 2021-01-05 Hossein Pirayesh , Huacheng Zeng