Multimedia Over Cognitive Radio Networks


Multimedia Over Cognitive Radio Networks
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Multimedia Over Cognitive Radio Networks


Multimedia Over Cognitive Radio Networks
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Author : Fei Hu
language : en
Publisher: CRC Press
Release Date : 2014-12-04

Multimedia Over Cognitive Radio Networks written by Fei Hu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-04 with Computers categories.


With nearly 7 billion mobile phone subscriptions worldwide, mobility and computing have become pervasive in our society and business. Moreover, new mobile multimedia communication services are challenging telecommunication operators. To support the significant increase in multimedia traffic-especially video-over wireless networks, new technological



Cognitive Radio Systems


Cognitive Radio Systems
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Author : Wei Wang
language : en
Publisher: IntechOpen
Release Date : 2009-11-01

Cognitive Radio Systems written by Wei Wang and has been published by IntechOpen this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-01 with Computers categories.


Cognitive radio is a hot research area for future wireless communications in the recent years. In order to increase the spectrum utilization, cognitive radio makes it possible for unlicensed users to access the spectrum unoccupied by licensed users. Cognitive radio let the equipments more intelligent to communicate with each other in a spectrum-aware manner and provide a new approach for the co-existence of multiple wireless systems. The goal of this book is to provide highlights of the current research topics in the field of cognitive radio systems. The book consists of 17 chapters, addressing various problems in cognitive radio systems.



Cognitive Radio Networks


Cognitive Radio Networks
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Author : Yan Zhang
language : en
Publisher: CRC Press
Release Date : 2016-04-19

Cognitive Radio Networks written by Yan Zhang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Computers categories.


While still in the early stages of research and development, cognitive radio is a highly promising communications paradigm with the ability to effectively address the spectrum insufficiency problem. Written by those pioneering the field, Cognitive Radio Networks: Architectures, Protocols, and Standards offers a complete view of cognitive radio-incl



Cognitive Radio Mobile Communications And Wireless Networks


Cognitive Radio Mobile Communications And Wireless Networks
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Author : Mubashir Husain Rehmani
language : en
Publisher: Springer
Release Date : 2018-07-30

Cognitive Radio Mobile Communications And Wireless Networks written by Mubashir Husain Rehmani and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-30 with Technology & Engineering categories.


This book provides an overview of the latest research and development of new technologies for cognitive radio, mobile communications, and wireless networks. The contributors discuss the research and requirement analysis and initial standardization work towards 5G cellular systems and the capacity problems it presents. They show how cognitive radio, with the capability to flexibly adapt its parameters, has been proposed as the enabling technology for unlicensed secondary users to dynamically access the licensed spectrum owned by legacy primary users on a negotiated or an opportunistic basis. They go on to show how cognitive radio is now perceived in a much broader paradigm that will contribute to solve the resource allocation problem that 5G requirements raise. The chapters represent hand-selected expanded papers from EAI sponsored and hosted conferences such as the 12th EAI International Conference on Mobile and Ubiquitous Systems, the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, the 10th International Conference on Cognitive Radio Oriented Wireless Networks, the 8th International Conference on Mobile Multimedia Communications, and the EAI International Conference on Software Defined Wireless Networks and Cognitive Technologies for IoT.



Cognitive Radio Mobile Ad Hoc Networks


Cognitive Radio Mobile Ad Hoc Networks
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Author : F. Richard Yu
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-09-28

Cognitive Radio Mobile Ad Hoc Networks written by F. Richard Yu 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 2011-09-28 with Technology & Engineering categories.


Cognitive radios (CR) technology is capable of sensing its surrounding environment and adapting its internal states by making corresponding changes in certain operating parameters. CR is envisaged to solve the problems of the limited available spectrum and the inefficiency in the spectrum usage. CR has been considered in mobile ad hoc networks (MANETs), which enable wireless devices to dynamically establish networks without necessarily using a fixed infrastructure. The changing spectrum environment and the importance of protecting the transmission of the licensed users of the spectrum mainly differentiate classical MANETs from CR-MANETs. The cognitive capability and re-configurability of CR-MANETs have opened up several areas of research which have been explored extensively and continue to attract research and development. The book will describe CR-MANETs concepts, intrinsic properties and research challenges of CR-MANETs. Distributed spectrum management functionalities, such as spectrum sensing and sharing, will be presented. The design, optimization and performance evaluation of security issues and upper layers in CR-MANETs, such as transport and application layers, will be investigated.



Cognitive Radio Networks


Cognitive Radio Networks
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Author : Kwang-Cheng Chen
language : en
Publisher: John Wiley & Sons
Release Date : 2009-03-30

Cognitive Radio Networks written by Kwang-Cheng Chen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-03-30 with Technology & Engineering categories.


Giving a basic overview of the technologies supporting cognitive radio this introductory-level text follows a logical approach, starting with the physical layer and concluding with applications and general issues. It provides a background to advances in the field of cognitive radios and a new exploration of how these radios can work together as a network. Cognitive Radio Networks starts with an introduction to the fundamentals of wireless communications, introducing technologies such as OFDM & MIMO. It moves onto cover software defined radio and explores and contrasts wireless, cooperative and cognitive networks and communications. Spectrum sensing, medium access control and network layer design are examined before the book concludes by covering the topics of trusted cognitive radio networks and spectrum management. Unique in providing a brief but clear tutorial and reference to cognitive radio networks this book is a single reference, written at the appropriate level for newcomers as well as providing an encompassing text for those with more knowledge of the subject. One of the first books to provide a systematic description of cognitive radio networks Provides pervasive background knowledge including both wireless communications and wireless networks Written by leading experts in the field Full network stack investigation



Dynamic Spectrum Access And Management In Cognitive Radio Networks


Dynamic Spectrum Access And Management In Cognitive Radio Networks
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Author : Ekram Hossain
language : en
Publisher: Cambridge University Press
Release Date : 2009-06-18

Dynamic Spectrum Access And Management In Cognitive Radio Networks written by Ekram Hossain and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-18 with Computers categories.


An all-inclusive introduction to this revolutionary technology, presenting the key research issues and state-of-the-art design, analysis, and optimization techniques.



Video Over Cognitive Radio Networks


Video Over Cognitive Radio Networks
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Author : Shiwen Mao
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-01-03

Video Over Cognitive Radio Networks written by Shiwen Mao 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 2014-01-03 with Technology & Engineering categories.


This book focuses on the problem of video streaming over emerging cognitive radio (CR) networks. The book discusses the problems and techniques for scalable video streaming over cellular cognitive radio networks, ad hoc CR networks, cooperative CR networks, and femtocell CR networks. The authors formulate these problems and propose optimal algorithms to solve these problems. Also the book analyzes the proposed algorithms and validates the algorithms with simulations.



Cognitive Radio And Its Application For Next Generation Cellular And Wireless Networks


Cognitive Radio And Its Application For Next Generation Cellular And Wireless Networks
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Author : Hrishikesh Venkataraman
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-04-28

Cognitive Radio And Its Application For Next Generation Cellular And Wireless Networks written by Hrishikesh Venkataraman 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 2012-04-28 with Technology & Engineering categories.


This book provides a broad introduction to Cognitive Radio, which attempts to mimic human cognition and reasoning applied to Software Defined Radio and reconfigurable radio over wireless networks. It provides readers with significant technical and practical insights into different aspects of Cognitive Radio, starting from a basic background, the principle behind the technology, the inter-related technologies and application to cellular and vehicular networks, the technical challenges, implementation and future trends. The discussion balances theoretical concepts and practical implementation. Wherever feasible, the different concepts explained are linked to application of the corresponding scheme in a particular wireless standard. This book has two sections: the first section begins with an introduction to cognitive radio and discusses in detail various, inter-dependent technologies such as network coding, software-based radio, dirty RF, etc. and their relation to cognitive radio. The second section deals with two key applications of cognitive radio – next generation cellular networks and vehicular networks. The focus is on the impact and the benefit of having cognitive radio-based mechanisms for radio resource allocation, multihop data transmission, co-operative communication, cross-layer solutions and FPGA-level framework design, as well as the effect of relays as cognitive gateways and real-time, seamless multimedia transmission using cognitive radio.



Modeling And Analysis Of Voice And Data In Cognitive Radio Networks


Modeling And Analysis Of Voice And Data In Cognitive Radio Networks
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Author : Subodha Gunawardena
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-03-14

Modeling And Analysis Of Voice And Data In Cognitive Radio Networks written by Subodha Gunawardena 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 2014-03-14 with Computers categories.


This Springer Brief investigates the voice and elastic/interactive data service support over cognitive radio networks (CRNs), in terms of their delay requirements. The increased demand for wireless communication conflicts with the scarcity of the radio spectrum, but CRNS allow for more efficient use of the networks. The authors review packet level delay requirements of the voice service and session level delay requirements of the elastic/interactive data services, particularly constant-rate and on-off voice traffic capacities in CRNs with centralized and distributed network coordination. Some generic channel access schemes are considered as the coordination mechanism, and call admission control algorithms are developed for non-fully-connected CRNs. Other key topics include the advantages of supporting voice traffic flows with different delay requirements, the mean response time of the elastic data traffic over a centralized CRN, and effects of the traffic load at the base station and file length (service time requirement) distribution on the mean response time. The brief is designed for professionals and researchers working with wireless networks, cognitive radio, and communications. It is also a helpful reference for advanced-level students interested in efficient wireless communications.