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The ability to intelligently utilize resources to meet the need of growing diversity in services and user behavior marks the future of wireless communication systems. Intelligent wireless communications aims at enabling the system to…

Information Theory · Computer Science 2018-12-27 Xiangwei Zhou , Mingxuan Sun , Geoffrey Ye Li , Biing-Hwang Juang

Cognitive radios have been proposed as a means to implement efficient reuse of the licensed spectrum. The key feature of a cognitive radio is its ability to recognize the primary (licensed) user and adapt its communication strategy to…

Information Theory · Computer Science 2007-07-13 Aleksandar Jovicic , Pramod Viswanath

Cognitive radio networks (CRNs) are networks of nodes equipped with cognitive radios that can optimize performance by adapting to network conditions. While cognitive radio networks (CRN) are envisioned as intelligent networks, relatively…

Networking and Internet Architecture · Computer Science 2015-11-06 Junaid Qadir

Ad hoc network is a collection of wireless mobile nodes that dynamically form a temporary network without the use of any existing network infrastructure or centralized administration. A cognitive radio is a radio that can change its…

Networking and Internet Architecture · Computer Science 2012-07-25 S. Selvakanmani , M. Sumathi

Today's wireless networks are characterized by fixed spectrum assignment policy. The limited available spectrum and the inefficiency in the spectrum usage necessitate a new communication paradigm to exploit the existing wireless spectrum…

Networking and Internet Architecture · Computer Science 2011-09-02 Partha Pratim Bhattacharya , Ronak Khandelwal , Rishita Gera , Anjali Agarwal

Cognitive radios have been studied recently as a means to utilize spectrum in a more efficient manner. This paper focuses on the fundamental limits of operation of a MIMO cognitive radio network with a single licensed user and a single…

Information Theory · Computer Science 2009-11-13 Sriram Sridharan , Sriram Vishwanath

Cognitive Radio (CR) operates in different fields as varied, one of these is cognitive radio networks. In this paper, we propose a new approach used CR, which aims to manage potential failures of computer systems and applications through…

Networking and Internet Architecture · Computer Science 2014-04-23 Mohammed Zakarya Baba-Ahmed , Badr Benmammar , Fethi Tarik Bendimerad

Deep learning has been proven to be a powerful tool for addressing the most significant issues in cognitive radio networks, such as spectrum sensing, spectrum sharing, resource allocation, and security attacks. The utilization of deep…

Networking and Internet Architecture · Computer Science 2024-11-01 Senthil Kumar Jagatheesaperumal , Ijaz Ahmad , Marko Höyhtyä , Suleman Khan , Andrei Gurtov

In this report, I surveyed the cognitive radio technique in wireless networks. Researched several kinds of cognitive techniques about their advantages and disadvantages.

Multimedia · Computer Science 2011-05-03 Lu Lu

Cognitive radio is a breakthrough technology which is expected to have a profound impact on the way radio spectrum will be accessed, managed and shared in the future. In this paper I examine some of the implications of cognitive radio for…

Artificial Intelligence · Computer Science 2009-03-03 Maziar Nekovee

Information-theoretic limits of {\it cognitive radio} networks have been under exploration for more than a decade. Although such limits are unknown for many networks, including the simplest case with two pairs of transmitter-receiver, there…

Information Theory · Computer Science 2020-01-28 Mojtaba Vaezi

A Cognitive Radio is a type of Software-Defined Radio (SDR) that automatically detects available wireless spectrum and adjusts its physical hardware, modulation, or protocol parameters to obtain optimal throughput, latency, and range. Much…

Networking and Internet Architecture · Computer Science 2023-01-10 William B. Schoeler

In this paper, we present a survey on the utility of machine learning (ML) algorithms for applications in cognitive radio networks (CRN). We start with a high-level overview of some of the major challenges in CRNs, and mention the ML…

Signal Processing · Electrical Eng. & Systems 2021-06-22 Akshay Upadhye , Purushothaman Saravanan , Shreeram Suresh Chandra , Sanjeev Gurugopinath

Cognitive Radio (CR) operates in different fields as varied, one of these is cognitive radio networks. In this paper, we propose a new approach used CR, which aims to manage potential failures of computer systems and applications through…

Networking and Internet Architecture · Computer Science 2014-04-03 Mohammed Zakarya Baba-Ahmed , Badr Benmammar , Fethi Tarik Bendimerad

A cognitive radio system has the ability to observe and learn from the environment, adapt to the environmental conditions, and use the radio spectrum more efficiently. However, due to multipath fading, shadowing, or varying channel…

Information Theory · Computer Science 2017-01-20 Fatima Salahdine , Naima Kaabouch , Hassan Ghazi

Cognitive Network is a technique which is used to improve the spectrum utilization. Current network scenario is experiencing the huge spectrum scarcity problem due to the fixed assignment policy so in this method great amount of spectrum…

Networking and Internet Architecture · Computer Science 2017-01-30 Himanshu Agrawal

It has been 20 years since the concept of cognitive radio (CR) was proposed, which is an efficient approach to provide more access opportunities to connect massive wireless devices. To improve the spectrum efficiency, CR enables unlicensed…

Networking and Internet Architecture · Computer Science 2019-09-26 Zhijin Qin , Xiangwei Zhou , Lin Zhang , Yue Gao , Ying-Chang Liang , Geoffrey Ye Li

A cognitive radio system has the ability to observe and learn from the environment, adapt to the environmental conditions, and use the radio spectrum more efficiently. It allows secondary users (SUs) to use the primary users (PUs) channels…

Information Theory · Computer Science 2018-02-13 Fatima Salahdine

In the realm of amateur radio, the effective classification of signals and the mitigation of noise play crucial roles in ensuring reliable communication. Traditional methods for signal classification and noise reduction often rely on manual…

Signal Processing · Electrical Eng. & Systems 2024-02-29 Jimi Sanchez

Cognitive Radio is a new concept that allows radio devices access to licensed bands since they do not cause harmful interferences to systems that hold the license of use. The main motivation for the increase of research on Cognitive Radio…

Networking and Internet Architecture · Computer Science 2016-09-21 Eduardo M. Vasconcelos , Kelvin L. Dias
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