Cooperative Cognitive Radio Networks
DOWNLOAD eBooks
Download Cooperative Cognitive Radio Networks PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Cooperative Cognitive Radio Networks book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Cooperative Cognitive Radio Networks
DOWNLOAD eBooks
Author : Mohamed Ibnkahla
language : en
Publisher: CRC Press
Release Date : 2018-09-03
Cooperative Cognitive Radio Networks written by Mohamed Ibnkahla and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-03 with Computers categories.
Cooperative Cognitive Radio Networks: The Complete Spectrum Cycle provides a solid understanding of the foundations of cognitive radio technology, from spectrum sensing, access, and handoff to routing, trading, and security. Written in a tutorial style with several illustrative examples, this comprehensive book: Gives an overview of cognitive radio systems and explains the different components of the spectrum cycle Features step-by-step analyses of the different algorithms and systems, supported by extensive computer simulations, figures, tables, and references Fulfills the need for a single source of information on all aspects of the spectrum cycle, including the physical, link, medium access, network, and application layers Offering a unifying view of the various approaches and methodologies, Cooperative Cognitive Radio Networks: The Complete Spectrum Cycle presents the state of the art of cognitive radio technology, addressing all phases of the spectrum access cycle.
Cooperative Cognitive Radio Networking
DOWNLOAD eBooks
Author : Bin Cao
language : en
Publisher: Springer
Release Date : 2016-05-19
Cooperative Cognitive Radio Networking written by Bin Cao and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-19 with Technology & Engineering categories.
This SpringerBrief examines the active cooperation between users of Cooperative Cognitive Radio Networking (CCRN), exploring the system model, enabling techniques, and performance. The brief provides a systematic study on active cooperation between primary users and secondary users, i.e., (CCRN), followed by the discussions on research issues and challenges in designing spectrum-energy efficient CCRN. As an effort to shed light on the design of spectrum-energy efficient CCRN, they model the CCRN based on orthogonal modulation and orthogonally dual-polarized antenna (ODPA). The resource allocation issues are detailed with respect to both models, in terms of problem formulation, solution approach, and numerical results. Finally, the optimal communication strategies for both primary and secondary users to achieve spectrum-energy efficient CCRN are analyzed.
Cooperative Spectrum Sensing And Resource Allocation Strategies In Cognitive Radio Networks
DOWNLOAD eBooks
Author : Xavier Fernando
language : en
Publisher: Springer
Release Date : 2018-05-22
Cooperative Spectrum Sensing And Resource Allocation Strategies In Cognitive Radio Networks written by Xavier Fernando and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-22 with Technology & Engineering categories.
Cognitive radio networks (CRN) will be widely deployed in the near future, and this SpringerBrief covers some important aspects of it, as well as highlighting optimization strategies in Resource Allocation and Spectrum Sensing in CRNs. The cognitive approach in radio access is introduced in the first part of this SpringerBrief, and then next the benefits of cooperative spectrum sensing are highlighted and a framework for studying it under realistic channel conditions is described. New exact closed-form expressions for average false alarm probability and average detection probability are derived in this scenario. A novel approximation to alleviate the computational complexity of the proposed models are also discussed. Once the spectrum opportunities are identified, efficient and systematic resource allocation (RA) shall be performed. The second part of this SpringerBrief describes the taxonomy for the RA process in CRN. A comprehensive overview of the optimization strategies of the CRN RA is also provided. The device-to-device (D2D) communication scenario is discussed, then as a case study and various optimization strategies for the application of the CR technology in the D2D realm is studied. The application of advanced geometric water-filling (GWF) approach in CRN D2D environment for optimum resource allocation is presented in detail. Numerical results provide more insight quantitatively. Overall, this book is suitable for a wide audience that include students, faculty and researchers in wireless communication area and professionals in the wireless service industry.
Security Aware Cooperation In Cognitive Radio Networks
DOWNLOAD eBooks
Author : Ning Zhang
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-01-29
Security Aware Cooperation In Cognitive Radio Networks written by Ning Zhang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-29 with Computers categories.
This brief investigates spectrum efficient and energy efficient strategies, known as cognitive radio networks (CRNs), to ensure secure cooperation between licensed and unlicensed users. The authors address issues of spectrum scarcity, spectrum sensing, transmission performance, trust-aware cooperation, and secure communications. Two security-aware cooperation based spectrum access schemes are presented. The first is a trust-aware cooperative framework for CRNs to improve the throughput or energy efficiency of licensed users and offer transmission opportunities to unlicensed users, taking into consideration the trustworthiness of unlicensed users. The second scheme is a cooperative framework to enhance secure communications of licensed users. An introduction to CRNs and literature survey enhance the discussion while numerical results are provided to demonstrate the viability of the proposed schemes. The brief is designed for researchers and professionals working with cognitive radio networks or interested in cooperation based access. Advanced-level students studying computer communication networks and communications engineering will also find this brief useful.
Performance Of Cooperative Spectrum Sensing In Cognitive Radio Networks
DOWNLOAD eBooks
Author : Chilakala Sudhamani
language : en
Publisher: GRIN Verlag
Release Date : 2020-10-08
Performance Of Cooperative Spectrum Sensing In Cognitive Radio Networks written by Chilakala Sudhamani and has been published by GRIN Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-08 with Technology & Engineering categories.
Doctoral Thesis / Dissertation from the year 2020 in the subject Engineering - Communication Technology, grade: A, , language: English, abstract: Cooperative spectrum sensing technique is used to maximize the utilization of unused licensed spectrum. As the cooperation among the secondary users increases the detection performance increases, which increases the average channel throughput and energy efficiency but it depends on the number of cooperative secondary users, fusion rules, channel conditions and detection threshold. In this thesis average channel throughput, energy consumption and energy efficiency are estimated for variable number of secondary users and detection thresholds using hard fusion rules i.e. AND, OR and MAJORITY fusion rules. From the results it has been observed that the performance of AND fusion rule is better at low detection thresholds and for less number of secondary users. The performance of OR fusion rule is better at high detection thresholds and for large number of secondary users. The performance of MAJORITY fusion rule follows the performance of AND fusion rule at low detection thresholds and it follows the performance of OR fusion rule at high detection thresholds. However as the number of cooperative secondary users increases the energy required for spectrum sensing and reporting sensing results to the fusion center increases, which increases the energy consumption and reduces the energy efficiency. Therefore energy efficiency can be improved by maximizing the average channel throughput or by minimizing the energy consumption. To minimize the energy consumption in cooperative spectrum sensing, optimization technique has been proposed in this thesis and it is used for further improvement of energy efficiency. With this optimization technique, optimal number of cooperative secondary users are derived by maximizing the energy efficiency using AND and OR fusion rules but not with MAJORITY fusion rule. Because it is very difficult to estimate the optimal number of cooperative secondary users using MAJORITY fusion rule, so optimization of final decision threshold was proposed in the existing methods to maximize the energy efficiency using MAJORITY fusion rule. Therefore AND and OR fusion rules are used in this work to optimize the number of cooperative secondary users.
Cognitive Radio Networks
DOWNLOAD eBooks
Author : Tao Jiang
language : en
Publisher: CRC Press
Release Date : 2015-04-08
Cognitive Radio Networks written by Tao Jiang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-08 with Computers categories.
Resource allocation is an important issue in wireless communication networks. In recent decades, cognitive radio-based networks have garnered increased attention and have been well studied to overcome the problem of spectrum scarcity in future wireless communications systems. Many new challenges in resource allocation appear in cognitive radio-base
Cooperative Communication For Cognitive Radio Networks
DOWNLOAD eBooks
Author : Wei Liang
language : en
Publisher:
Release Date : 2015
Cooperative Communication For Cognitive Radio Networks written by Wei Liang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Analysis Of Ostbc In Cooperative Cognitive Radio Networks
DOWNLOAD eBooks
Author : Matiullah Khan
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-08
Analysis Of Ostbc In Cooperative Cognitive Radio Networks written by Matiullah Khan and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08 with categories.
In Cooperative MIMO communication, major challenges are efficient use of bandwidth and link reliability.To achieve cooperative diversity in cognitive radio network, DF-protocol is implemented at CRs using OSTBC. The 2-hop communication between source and destination is completed with the help of CRs using MIMO technology within the network. To achieve spatial diversity and good code rate Alamouti 2x2 STBC is used for transmission. CR is using the decoding DF-strategy and without amplifying ability before forwarding data towards destination provide better performance. The main objective of this thesis is to detect PU- spectrum availability or non-availability for the use of SU. The Alamouti 2x2 STBC encoded data is broadcasted to wireless Rayleigh faded channel through transmitter having two transmitting antennas. The CRs are preferred to place close with PU to detect transmitted signal and because of having decoding capability CRs decode the collected data using ML-decoding technique then re-encode the decoded data for further transmission towards receiver.This book is useful for students and researchers working in the areas of Cognitive Radio and Cooperative Wireless Network
Cooperative Device To Device Communication In Cognitive Radio Cellular Networks
DOWNLOAD eBooks
Author : Peng Li
language : en
Publisher: Springer
Release Date : 2014-11-25
Cooperative Device To Device Communication In Cognitive Radio Cellular Networks written by Peng Li and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-25 with Computers categories.
This brief examines current research on cooperative device-to-device (D2D) communication as an enhanced offloading technology to improve the performance of cognitive radio cellular networks. By providing an extensive review of recent advances in D2D communication, the authors demonstrate that the quality of D2D links significantly affects offloading performance in cellular networks, which motivates the design of cooperative D2D communication. After presenting the architecture of cooperative D2D communication, the challenges of capacity maximization and energy efficiency are addressed by optimizing relay assignment, power control and resource allocation. Furthermore, cooperative D2D communication is enhanced by network coding technology, and then is extended for broadcast sessions. Along with detailed problem formulation and hardness analysis, fast algorithms are developed by exploiting problem-specific characteristics such that they can be applied in practice.
Introduction To Cognitive Radio Networks And Applications
DOWNLOAD eBooks
Author : Geetam Tomar
language : en
Publisher: CRC Press
Release Date : 2016-10-03
Introduction To Cognitive Radio Networks And Applications written by Geetam Tomar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-03 with Computers categories.
Cognitive radio is 5-G technology, comes under IEEE 802.22 WRAN (Wireless Regional Area Network) standards. It is currently experiencing rapid growth due to its potential to solve many of the problems affecting present-day wireless systems. The foremost objective of "Introduction to Cognitive Radio Networks and Applications" is to educate wireless communication generalists about cognitive radio communication networks. Written by international leading experts in the field, this book caters to the needs of researchers in the field who require a basis in the principles and the challenges of cognitive radio networks.