COGNITIVE RADIO IEEE PAPERS AND PROJECTS-2020



A cognitive radio is a radio that can be programmed and configured dynamically to use the best wireless channels in its vicinity to avoid user interference and congestion.

Accuracy in spectrum sensing is very much required in cognitive radio network, which is a revolutionary paradigm to drift the spectrum underutilization problem. To enhance the detection performance in presence of shadowing or fading multiple SUs cooperate among

Performance analysis of secondary users under heterogeneous licensed spectrum environment in cognitive radio ad hoc networks
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Cognitive radio (CR) is a hopeful technology to sort out spectrum scarcity and underutilization problem in ad hoc networks. With the help of cognitive radio technology, unlicensed users can efficiently utilize the unused part of heterogeneous licensed spectrum Ultra high definition radio low latency, high bandwidth, machine to machine communication and several emergence application like e-health, IOT etc. will be dominated by 5G in future networks. Therefore there is dire need of more capacity which in turn will demand more With the rapid growth of wireless communication, there is an extensive growth in the demand of Radio frequency through electromagnetic spectrum allocation. Cognitive radio is considered to be a potential technology which helps to overcome the demand in radio

Optimal Sensing and Interference Suppression in 5G Cognitive Radio Networks
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This paper proposes a technique to enhance both throughput and sensing time in secondary network under Full-Duplex Cognitive Radio (FD-CR). Subsequently, it overcomes power-throughput trade-off which is caused by SI-interference occurs during transmission In recent days, accessing the spectrum of Cognitive Radio spread has gained significance in the applications of sensor based wireless devices. In this promising environment the bottle neck existed in accessing the spectrum which makes complications in the setup on wireless

Overlay Cognitive Radio NOMA Networks with Selected Relay and Direct Link
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In this paper, we propose an overlay cognitive radio (CR) non-orthogonal multiple access (NOMA) network to improve the performance of the primary receiver (PR) as well as the secondary receiver (SR). To accomplish the purpose, firstly, we adapt combining

DYNAMIC MULTICHANNEL TRANSMISSION IN COGNITIVE RADIO NETWORKS
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In cognitive radio networks, the secondary users run different types of wireless applications and, therefore, require different levels of bandwidth. A possible solution to said requirement from secondary users is the multichannel spectrum allocation with equity. The presentIn this paper, we optimize both harvesting and sensing durations for cognitive radio networks (CRNs). There are a primary source and destination P_S PS and P_D PD. In the secondary network, there are a secondary source and destination S_S SS and S_D SD Motivated by the current demand for improvements in transmission rate and energy efficiency of random wireless cellular networks, we investigate the theoretical model of random cognitive radio network in Rayleigh-lognormal fading environment. In such a In this paper, we analyze the performance of cooperative cognitive radio networks where the secondary nodes harvest energy from radio frequency signals. Our analysis takes into interference aspect: the secondary source and relays transmit only when they generate low This article mainly focuses on the concept of cognitive radio paradigm in the ultra-wideband 3.1 10.6 GHz and recent trends of various antenna systems required for these applications. This paper also presents the working principle of cognitive radio model and the importance

Bee inspired secured protocol for routing in cognitive radio ad hoc networks
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Background: Enhancing security and minimizing the delay is a significant task present in all modern networks. Dynamic emerging problems like node failure, route failure, intrusions, and security attacks lead the network to failure. Hence, there exist needs for development of Cognitive radio (CR) technology has been demonstrated as one of the key technologies that can provide the needed spectrum bands for supporting the emerging spectrum-hungry multimedia applications and services in next-generation wireless networks. Multicast routing Moth flame optimization (MFO), a novel natural surrounding based optimization technique, whose main character is the moth, from the family of butterflies. A special navigation system known as transverse orientation, used by moths to fly in the moon night, is the main Cognitive radio is an empowering innovation that guarantees to achieve spectrum utilization. To manage the muddled wireless condition, cooperative spectrum sensing (CSS) has been proposed to make use of the assorted variety in cognitive radio networks (CRNs)

Throughput maximization of multichannel allocation mechanism under interference constraint for hybrid overlay/underlay cognitive radio networks with energy
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By harvesting energy from ambient radio frequency (RF) signals, significant progress has been achieved in wireless networks self-maintaining their life cycles. Motivated by this and improved spectrum reuse by combined use of overlay/underlay modes of cognitive radio The main aim of this paper is to analysis and simulate existing methods such as energy detection, Maximum Minimum Eigen value detectors (MME), MME with blind two stage detector and compare with the proposed adaptive covariance threshold method. This

Spectrum Sensing in Cognitive Radio using SVM and KNN algorithms.
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The rapid increase in demand for wireless technology has resulted in huge demand for licensed and unlicensed frequencies of the spectrum. In this case, cognitive radio will prove vitally useful. Cognitive radio provides better spectrum utilization. This project deals

Network Sum-Rate Maximization via Joint Relay Selection and Power Allocation in Energy-Harvesting NOMA Multicast Cognitive Radio Networks
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This paper studies the problem of joint relay selection and power allocation (J-RS-PA) for energy-harvesting (EH) non-orthogonal multiple-access (NOMA) multicast cognitive radio networks. Particularly, primary and secondary transmitters communicate with their receivers Cognitive radio (CR) is a promising technology for the upcoming 5G communication which addresses opportunistic channel usage for enhanced spectrum utilization. However, Quality of Service (QoS) provisioning is a major challenge for CR Network due to the service The principle target of an International Mobile Telecommunication (IMT) is to build a platform to advance the improvement of technology used in 5G and to inspire the support with the MNCs and organizations. The journey of 5th Generation initiated with 1G technology and Nowadays, the use of nodes with different sensing capabilities is pervasive. This leads to many environments capable of monitoring human activity for security, comfort, and connectivity applications among others. However, this also leads to many opportunities for

Intelligent Radio : Cognitive Radio
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Cognitive radio (CR) is a new intelligent radio technology, which provides users with high quality of service (QoS) through dynamic access spectrum and can greatly improve the existing low efficiency of spectrum utilization. This paper mainly summarizes the research

Cepstrum Multitaper Method for Optimal Detection of Cognitive Radio Networks
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Multitaper method (MTM) is an unpopular method that used for spectrum detection. MTM is a good candidate to detect spectrum holes in cognitive radio networks. MTM is accurate, efficient and reliable technique. Cepstrum MTM is described as an effective tool for varianceCognitive radio (CR) is currently one of the most promising information transmission technologies to deal with the problem of spectrum scarcity and spectrum underutilization in wireless communications. CR networks aim to enhance spectrum efficiency to meet the ever

Smart Channel Selection Approach for Cognitive Radio Networks
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Cognitive radio is a wireless generation that gives answer to meet scarcity of radio spectrum. Here to find out the busy states of any spectrum unit and choice of appropriate vacant channel for conversation with the aid of secondary customers are two vital tasks. In this

Current Research Progress of Cognitive Radio
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Cognitive Radio (CR) is an adaptive, intelligent radio and network technology that can automatically detect available channels in a wireless spectrum and change transmission parameters enabling more communications to run concurrently and also improve radio

The Evolution of Cognitive Radio
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To heterogeneous cellular networks (HCNs), using the same spectrum resources can cause serious interference problems. But it does not have enough spectrum under a huge amount of mobile equipments, and cognitive radio can be a promising solution to spectrum scarcity

PHYSICAL LAYER SECURE NETWORK CODING IN COGNITIVE RADIO NETWORKS
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In the next few decades, plenty of smart space such as smart cities, smart homes and smart transportation will come into existence. Such smart space will require large numbers of devices connected to the Internet. However, with the explosive growth of communication

Book Report on Cognitive Radio II
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With the exponentially increase in the number of user equipment, spectrum scarcity becomes more and more serious. An state-of-the-art technology: cognitive radio are promising solutions for improving the systems spectral efficiency as well as the quality of the

Throughput Analysis of a Energy Harvesting Cooperative Cognitive Radio Network
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In this paper, energy harvesting cooperative cognitive radio (CR) network is studied under a collision constraint of PU. Optimal numbers of CRs cooperate in transmission of primary user (PU), if it remains present in the given channel; otherwise all the CRs transmit their own data

A Novel Channel Sensing Mechanism for Cognitive Radio Systems
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Cognitive Radios have emerged as one of the most creative and innovative concepts to ensure that the unutilized and infrequently used portions of the spectrum can be allotted to new channels to ensure maximum utilization of the spectrum. There are several challenges Cognitive Radio (CR) Networks is one of the most impressive rising regions of remote systems and correspondences that give fast and ease interchanges for the end clients. It can screen the range and select frequencies that limit impedance to existing PU correspondenceIn this paper, we derive the packet error probability of cognitive radio networks. Our analysis is valid when the powers of secondary source and relays are adaptive. The secondary source and relays can adapt their transmitting power so that interference to primary receiverThe sink hole attack is a typical wireless sensor network attack. The sink hole node advertises itself as the best route to the sink node or the base station. The nodes in the communication zone of the sink hole node then redirects their observed data to the sink hole

Spectrum Sensing in Cognitive Radio Networks: Threshold Value Optimization and Analysis
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Cognitive radio is a technology developed for the effective use of radio spectrum sources. The spectrum sensing function plays a key role in the performance of cognitive radio networks. In this study, we propose an online learning algorithm for the energy detection

Dynamic Channel Assignment MAC Protocol for Cognitive Radio Ad Hoc Networks (CRAHNs)
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In Cognitive Radio Ad Hoc Networks (CRAHNs), the Medium Access Control (MAC) protocol should handle the diverse Quality of Service (QoS) requirements of data packets of various classes generated by the nodes. The delay and reliability requirements of various

Channel and Power Allocation in Multipath Using Cognitive Radio Networks Using GLRT
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The optimum NP detector as able as alive implementations of this detector, accurately GLRT and CI-GLRT detectors, over accepted multipath abrasion channels was derived. The optimum detector was a combination of the LLF and LLR of the pathology that were bent to

Improved Wolf Prey Inspired Protocol for Routing in Cognitive Radio Ad Hoc Networks
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Fifth Generation (5G) technology has started providing the brand new facilities to the mobile communication world. With its enhanced performance and scalability, it has attracted many domains. Routing overhead in 5G networks is increased rapidly because of the complexity

A Brief Reading Report about Cognitive Radio Networks
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With the rapid growth of wireless technologies, current spectrum scarcity has become a serious problem. Cognitive radio (CR) is a promising solution to the problem of spectrum scarcity. Devices using CR technology can automatically detect and use the idle spectrum

Cross Layer Based Cooperative Spectrum Sensing for Cognitive Radio Networks
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Abstract The Cognitive Radio (CR) is an intelligent and efficient technology needed in todays wireless environment to make use of the underutilized spectrum resources. The CR users have to continuously sense the spectrum before accessing to avoid the interference

Resource Management in Cognitive Radio Networks
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Cognitive radio is a promising solution to the problem of spectrum scarcity, in which an unlicensed secondary user (SU) is allowed to opportunistically access the spectrum of a licensed primary user (PU) when the latter is idle or to share the spectrum simultaneously subject to certain interference

Machine Learning Implementation in Cognitive Radio Networks with Game-Theory Technique
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Significant enhancement of spectrum utilization can be performed by means of Cognitive Radio technology. A game theory based Cognitive Radio Network with Dynamic Spectrum Allocation model is proposed in this paper. M| M| 1 queuing model is implemented along

QoS-based Resource Management in Cognitive Radio Networks
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Cognitive radio (CR) is a promising solution to the problem of spectrum scarcity, in which an unlicensed secondary user (SU) is allowed to opportunistically access the spectrum of a licensed primary user (PU) when the latter is idle or to share the spectrum simultaneously subject to certain

Report on Some Papers of Cognitive Radio
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With the rapid growth of wireless technologies, current spectrum scarcity has become a serious problem. Cognitive radio (CR) is a promising solution to the problem of spectrum scarcity. Devices using CR technology can automatically detect and use the idle spectrum

Resource Allocation in Cognitive Radio Networks
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I We have investigated the resource allocation problem in relay-aided CR networks. The SUs throughput is maximized via joint subcarrier pairing and power allocation. Meanwhile, the interference from both the secondary source and the SRN to the primary receiver is kept

Solutions of Power Control and Spectrum Efficiency Problems in Cognitive Radio
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Cognitive Radio is facing with serious power control and spectrum efficiency problems. In order to tackle the problems in the field of wireless communication, this reading report extracts information from the numerous literature and details how to improve cognitive radio

A combined spectrum sensing method based DCT for cognitive radio system.
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In this paper a new hybrid blind spectrum sensing method is proposed. The method is designed to enhance the detection performance of Conventional Energy Detector (CED) through combining it with a proposed sensing module based on Discrete Cosine Transform

USING COGNITIVE RADIOS FOR HEALTH EMERGENCY
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The concept of cognitive radio (CR) was proposed to address the issue of spectrum efficiency and has been receiving an increasing attention in recent years, since it equips wireless users the capability to optimally adapt their operating parameters according to the interactions

A DUAL PORT SPATIALLY DIVERSE ANTENNA SYSTEM FOR COGNITIVE RADIO APPLICATIONS
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This paper presents a dual-port antenna system that combines the features of both cognitive radio and MIMO diversity. The system is designed on a compact size 90 70 1.6 ????3 FR4 substrate with PIN diodes integrated within feed line to achieve frequency reconfigurability

Solutions to challenges in different cognitive radio application scenarios
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Ming Kong Abstract: In this paper, in order to further explore the current research situation in the field of cognitive radio we study the challenges faced by cognitive radio technology in different application scenarios, and use different research methods or technologies to solve

Review on the optimization and theory of Cognitive Radio
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Ming Kong Abstract: In this paper, we review the theory of cognitive radio based on the current work. We also study the related optimization schemes in the field of cognitive radio in order to deeply study the field of cognitive radio and finally makes a detailed analysis of

Brief Reading Report on Cognitive Radio for Wireless Communication Network
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Cognitive Radio has been proved to be the focus of the future network to break through the deep spectrum perception, resource allocation, cognitive cellular network architecture. In order to face the new challenges in the field of wireless communication, this reading report

Resource Management in Cognitive Radio Network and Heterogeneous Networks
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Yinghao Zhang Abstract: In this paper, power control, spectrum sharing and spectrum sensing in cognitive wireless point networks are learned, and the existing representative research results are reviewed. These studies provide theoretical and technical support forCognitive radio networks (CRNs) enable to resolve the issue of radio spectrum scarcity by employing dynamic spectrum access (DSA) technique in next generation wireless networks. The cognitive radio (CR) yields additional bandwidth to support the demand for higher dataIn this paper, we conduct enhancing detection probability using Cognitive radio technology and focus on the current significant research progress in the full spectrum sharing towards the four scenarios. Currently, the radiofrequency spectrum is assigned and categorized

Hybrid Techniques for Performance Enhancement of Cooperative Spectrum Sensing Using OR Fusion Rule in Cognitive Radio
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Cognitive Radio (CR) is a technique used to solve the problem of scarcity of the wireless spectrum. It improves the spectrum efficiency by using spectrum holes by other users called secondary users or unlicensed users without interfering with the primary users or licensed