Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Throughput Maximisation Of Cognitive Radio Networks PDF full book. Access full book title Throughput Maximisation Of Cognitive Radio Networks.
| Author | : Farzad Moghimi |
| Publisher | : |
| Total Pages | : |
| Release | : 2012 |
| Genre | : |
| ISBN | : |
| Author | : 蔡宗穎 |
| Publisher | : |
| Total Pages | : |
| Release | : 2011 |
| Genre | : |
| ISBN | : |
| Author | : Stotas Stergios |
| Publisher | : |
| Total Pages | : 322 |
| Release | : 2012 |
| Genre | : Cognitive radio networks |
| ISBN | : |
Cognitive radio is a new promising technology that aims to mitigate the spectrum scarcity problem in wireless communications by allowing secondary (unlicensed) users to access licensed frequency bands, under the condition of protecting the primary (licensed) users from harmful interference. Three main approaches have been proposed regarding the way that the secondary users can access the licensed spectrum: (i) through opportunistic spectrum access, by using a frequency band only when it is detected to be idle, (ii) through spectrum sharing, where the secondary users coexist with the primary users by keeping the interference at the primary receivers at an acceptable low level, and (iii) through sensing-based/sensing-enhanced spectrum sharing, according to which the secondary users use higher transmit power when the primary users are detected to be idle and lower transmit power otherwise, in order to keep the interference at an acceptable low level. -- In this thesis, we focus on the optimal resource allocation and throughput maximisation of cognitive radio networks. We study the problem of determining the optimal sensing time and power allocation strategy that maximises the ergodic throughput of multiband opportunistic spectrum access and sensing-based spectrum sharing cognitive radio networks. Furthermore, we study the outage and truncated channel inversion with fixed rate (TIFR) throughput of a sensing-enhanced spectrum sharing cognitive radio system, in order to accommodate the need for delay-sensitive applications, such as voice and video transmission, and determine the optimal sensing time and power allocation strategy that maximises the throughput of the cognitive radio system.
| Author | : Shweta Pandit |
| Publisher | : Springer |
| Total Pages | : 270 |
| Release | : 2017-04-12 |
| Genre | : Technology & Engineering |
| ISBN | : 3319531476 |
This book discusses the use of the spectrum sharing techniques in cognitive radio technology, in order to address the problem of spectrum scarcity for future wireless communications. The authors describe a cognitive radio medium access control (MAC) protocol, with which throughput maximization has been achieved. The discussion also includes use of this MAC protocol for imperfect sensing scenarios and its effect on the performance of cognitive radio systems. The authors also discuss how energy efficiency has been maximized in this system, by applying a simple algorithm for optimizing the transmit power of the cognitive user. The study about the channel fading in the cognitive user and licensed user and power adaption policy in this scenario under peak transmit power and interference power constraint is also present in this book.
| Author | : Cheema Muhammad Awais Zafar |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 2016-11-08 |
| Genre | : |
| ISBN | : 9783659963636 |
| Author | : Preston Marshall |
| Publisher | : Artech House |
| Total Pages | : 479 |
| Release | : 2010 |
| Genre | : Science |
| ISBN | : 1608070980 |
Cognitive radio – a paradigm for wireless communication in which either a network or a wireless node changes its transmission or reception parameters to communicate more efficiently and avoid interference -- is one of the most exciting emerging fields in communications technology. Taking an integrated development approach, this cutting-edge book provides you with clear methods for performing quantitative analysis of cognitive radio techniques in a variety of environments. This detailed reference presents a quantitative structure that helps you determine the capability of cognitive radio to address a number of constraints of current radio design. Critical to understanding the operation of cognitive radio, the book develops an analytic model for a range of spectrum environments. Moreover, this unique resource offers you unique insight into the application of dynamic spectrum access (DSA) to improve the performance of all classes of wireless devices. DVD Included! Contains sample cognitive radio environments and closed form approximations of these environments in MATLAB file format. This data enables you to reproduce the analysis provided in the book, perform the exercises in each chapter, and extend the work through independent investigation and research.
| Author | : Alexander M. Wyglinski |
| Publisher | : Academic Press |
| Total Pages | : 737 |
| Release | : 2009-11-13 |
| Genre | : Technology & Engineering |
| ISBN | : 0080879322 |
Cognitive Radio Communications and Networks gives comprehensive and balanced coverage of the principles of cognitive radio communications, cognitive networks, and details of their implementation, including the latest developments in the standards and spectrum policy. Case studies, end-of-chapter questions, and descriptions of various platforms and test beds, together with sample code, give hands-on knowledge of how cognitive radio systems can be implemented in practice. Extensive treatment is given to several standards, including IEEE 802.22 for TV White Spaces and IEEE SCC41 Written by leading people in the field, both at universities and major industrial research laboratories, this tutorial text gives communications engineers, R&D engineers, researchers, undergraduate and post graduate students a complete reference on the application of wireless communications and network theory for the design and implementation of cognitive radio systems and networks Each chapter is written by internationally renowned experts, giving complete and balanced treatment of the fundamentals of both cognitive radio communications and cognitive networks, together with implementation details Extensive treatment of the latest standards and spectrum policy developments enables the development of compliant cognitive systems Strong practical orientation – through case studies and descriptions of cognitive radio platforms and testbeds – shows how real world cognitive radio systems and network architectures have been built Alexander M. Wyglinski is an Assistant Professor of Electrical and Computer Engineering at Worcester Polytechnic Institute (WPI), Director of the WPI Limerick Project Center, and Director of the Wireless Innovation Laboratory (WI Lab) Each chapter is written by internationally renowned experts, giving complete and balanced treatment of the fundamentals of both cognitive radio communications and cognitive networks, together with implementation details Extensive treatment of the latest standards and spectrum policy developments enables the development of compliant cognitive systems Strong practical orientation – through case studies and descriptions of cognitive radio platforms and testbeds – shows how "real world" cognitive radio systems and network architectures have been built
| Author | : Zhe Wang |
| Publisher | : Springer |
| Total Pages | : 70 |
| Release | : 2015-03-18 |
| Genre | : Technology & Engineering |
| ISBN | : 3319155423 |
This Springer Brief investigates spectrum sharing with limited channel feedback in various cognitive radio systems, such as point-to-point, broadcast scheduling and ad-hoc networks. The design aim is to optimally allocate the secondary resources to improve the throughput of secondary users while maintaining a certain quality of service for primary users. The analytical results of optimal resource allocation are derived via optimization theory and are verified by the numerical results. The results demonstrate the secondary performance is significantly improved by limited feedback and is further improved by more feedback bits, more secondary receivers and more primary side information.
| Author | : Tao Jiang |
| Publisher | : CRC Press |
| Total Pages | : 143 |
| Release | : 2015-04-08 |
| Genre | : Computers |
| ISBN | : 1498721141 |
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 communication systems. Many new challenges in resource allocation appear in cognitive radio-based networks. This book focuses on effective resource allocation solutions in several important cognitive radio-based networks, including opportunistic spectrum access networks, cooperative sensing networks, cellular networks, high-speed vehicle networks, and smart grids.
| Author | : Fei Hu |
| Publisher | : CRC Press |
| Total Pages | : 482 |
| Release | : 2014-12-04 |
| Genre | : Computers |
| ISBN | : 1482214873 |
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
