Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Modeling Shared Radio Frequency Band Utilization Of Collocated Heterogeneous Wireless Technologies PDF full book. Access full book title Modeling Shared Radio Frequency Band Utilization Of Collocated Heterogeneous Wireless Technologies.
| Author | : Derek D. Joos |
| Publisher | : |
| Total Pages | : 148 |
| Release | : 2002 |
| Genre | : Bluetooth technology |
| ISBN | : |
| Author | : Jan Kruys |
| Publisher | : Springer |
| Total Pages | : 280 |
| Release | : 2011-08-05 |
| Genre | : Technology & Engineering |
| ISBN | : 9789400715868 |
Much energy has been spent on the subject of spectrum scarcity that would threaten to stunt the growth of wireless technologies and services. This concern comes on the heels of the great successes of both cellular communications and consumer oriented communications like Wi-Fi and Bluetooth that have changed the way people use computers and communications and that have led to the creation of large new markets for products and services. The response of many spectrum regulators throughout the world in addressing these concerns has been to consider releasing more spectrum for unlicensed or for shared use. An example is the spectrum that is released by the transition to digital TV: the frequencies freed up are destined, in part, to new applications that would be license exempt. A possible beneficiary of new spectrum releases would be "the smart grid", a networked application of digital sensor and control technology to the energy delivery segment of the energy utility industry. This policy has heightened the interests of all involved in spectrum sharing and many proposals are being considered or brought forward. However, theory in this area is scarce and practice proves resistive of quick solutions. A case in point is RLAN/radar spectrum sharing in the 5GHz range: six years after the ITU-R allocated this shared spectrum, the rules for sharing as well as the means to verify compliance with these rules are not fully mature. Another recent development is the interest in spectrum pricing and trading which tend to focus on the economic aspects of spectrum sharing at the expense understanding of the limitations as well as the technical possibilities of spectrum sharing.
| Author | : Sheng-Hui Liao |
| Publisher | : |
| Total Pages | : 153 |
| Release | : 2010 |
| Genre | : |
| ISBN | : 9781124349121 |
The wireless communication spectrum has increasingly become a scarce real estate in the modern information era. On one hand, the Radio Frequency (RF) bands are gradually being handled out for various wireless systems, and on the other, the RF bands might have been allocated conservatively at the beginning, thus causing underutilization problems in the current spectrum allocations. In this dissertation, system design choices for spectrum sharing from multiple perspectives are discussed, and temporal spectrum sharing and spatial spectrum sharing approaches are proposed to improve spectrum utilization efficiency. The temporal spectrum sharing approach interleaves the channel access among multiple wireless systems in a Time Division Multiple Access (TDMA) fashion. Different from cognitive radio approaches which are opportunistic and non-collaborative in general, temporal spectrum sharing proactively structures and interleaves the channel access moments of heterogeneous wireless systems with collaborative designs. A crucial architectural component -- the base stations of wireless systems is modified to implement temporal spectrum sharing, using Software-Defined Radios (SDRs). The spatial spectrum sharing approach follows the traditional wisdom of cognitive radios by categorizing wireless systems as primary and secondary users, and exploits the fact that some well-established wireless systems have asymmetric characteristics in spectrum band utilization and wireless station deployment, suitable for the coexistence of secondary systems. Specifically, the widely accepted and deployed GSM and WiFi systems as primary and secondary users, respectively, are examined. The coexistence of GSM and WiFi systems causes negligible interference with each other without spectrum sensing or monitoring complexities. Experimental results show that the proposed approaches are feasible approaches to the spectrum scarcity problem.
| Author | : Tony Q. S. Quek |
| Publisher | : Cambridge University Press |
| Total Pages | : 499 |
| Release | : 2017-02-02 |
| Genre | : Computers |
| ISBN | : 1107142660 |
The first book on Cloud Radio Access Networks (C-RANs), covering fundamental theory, current techniques, and potential applications.
| Author | : John G. Proakis |
| Publisher | : Cengage Learning |
| Total Pages | : 640 |
| Release | : 2012-07-19 |
| Genre | : Technology & Engineering |
| ISBN | : 9780495082514 |
Featuring a variety of applications that motivate students, this book serves as a companion or supplement to any of the comprehensive textbooks in communication systems. The book provides a variety of exercises that may be solved on the computer using MATLAB. By design, the treatment of the various topics is brief. The authors provide the motivation and a short introduction to each topic, establish the necessary notation, and then illustrate the basic concepts by means of an example. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
| Author | : Steve A. Rackley |
| Publisher | : Elsevier |
| Total Pages | : 425 |
| Release | : 2011-02-23 |
| Genre | : Technology & Engineering |
| ISBN | : 0080471404 |
As the demand for higher bandwidth has lead to the development of increasingly complex wireless technologies, an understanding of both wireless networking technologies and radio frequency (RF) principles is essential for implementing high performance and cost effective wireless networks.Wireless Networking Technology clearly explains the latest wireless technologies, covering all scales of wireless networking from personal (PAN) through local area (LAN) to metropolitan (MAN). Building on a comprehensive review of the underlying technologies, this practical guide contains ‘how to’ implementation information, including a case study that looks at the specific requirements for a voice over wireless LAN application. This invaluable resource will give engineers and managers all the necessary knowledge to design, implement and operate high performance wireless networks. · Explore in detail wireless networking technologies and understand the concepts behind RF propagation.· Gain the knowledge and skills required to install, use and troubleshoot wireless networks.· Learn how to address the problems involved in implementing a wireless network, including the impact of signal propagation on operating range, equipment inter-operability problems and many more.· Maximise the efficiency and security of your wireless network.
| Author | : Christopher Cox |
| Publisher | : John Wiley & Sons |
| Total Pages | : 561 |
| Release | : 2014-05-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1118818016 |
Following on from the successful first edition (March 2012), this book gives a clear explanation of what LTE does and how it works. The content is expressed at a systems level, offering readers the opportunity to grasp the key factors that make LTE the hot topic amongst vendors and operators across the globe. The book assumes no more than a basic knowledge of mobile telecommunication systems, and the reader is not expected to have any previous knowledge of the complex mathematical operations that underpin LTE. This second edition introduces new material for the current state of the industry, such as the new features of LTE in Releases 11 and 12, notably coordinated multipoint transmission and proximity services; the main short- and long-term solutions for LTE voice calls, namely circuit switched fallback and the IP multimedia subsystem; and the evolution and current state of the LTE market. It also extends some of the material from the first edition, such as inter-operation with other technologies such as GSM, UMTS, wireless local area networks and cdma2000; additional features of LTE Advanced, notably heterogeneous networks and traffic offloading; data transport in the evolved packet core; coverage and capacity estimation for LTE; and a more rigorous treatment of modulation, demodulation and OFDMA. The author breaks down the system into logical blocks, by initially introducing the architecture of LTE, explaining the techniques used for radio transmission and reception and the overall operation of the system, and concluding with more specialized topics such as LTE voice calls and the later releases of the specifications. This methodical approach enables readers to move on to tackle the specifications and the more advanced texts with confidence.
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 208 |
| Release | : 1998-01-01 |
| Genre | : Technology & Engineering |
| ISBN | : 9780309059466 |
In response to a request from the Defense Advanced Research Projects Agency, the committee studied a range of issues to help identify what strategies the Department of Defense might follow to meet its need for flexible, rapidly deployable communications systems. Taking into account the military's particular requirements for security, interoperability, and other capabilities as well as the extent to which commercial technology development can be expected to support these and related needs, the book recommends systems and component research as well as organizational changes to help the DOD field state-of-the-art, cost-effective untethered communications systems. In addition to advising DARPA on where its investment in information technology for mobile wireless communications systems can have the greatest impact, the book explores the evolution of wireless technology, the often fruitful synergy between commercial and military research and development efforts, and the technical challenges still to be overcome in making the dream of "anytime, anywhere" communications a reality.
| Author | : Ramjee Prasad |
| Publisher | : CRC Press |
| Total Pages | : 125 |
| Release | : 2022-09-01 |
| Genre | : Technology & Engineering |
| ISBN | : 1000793311 |
The future society would be ushered in a new communication era with the emergence of 5G. 5G would be significantly different, especially, in terms of architecture and operation in comparison with the previous communication generations (4G, 3G...). This book discusses the various aspects of the architecture, operation, possible challenges, and mechanisms to overcome them. Further, it supports users? interac- tion through communication devices relying on Human Bond Communication and COmmunication-NAvigation- SENsing- SErvices (CONASENSE).Topics broadly covered in this book are; • Wireless Innovative System for Dynamically Operating Mega Communications (WISDOM)• Millimeter Waves and Spectrum Management• Cyber Security• Device to Device Communication
| Author | : Haim Mazar (Madjar) |
| Publisher | : John Wiley & Sons |
| Total Pages | : 460 |
| Release | : 2016-08-29 |
| Genre | : Science |
| ISBN | : 1118511794 |
This book presents the fundamentals of wireless communications and services, explaining in detail what RF spectrum management is, why it is important, which are the authorities regulating the use of spectrum, and how is it managed and enforced at the international, regional and national levels. The book offers insights to the engineering, regulatory, economic, legal, management policy-making aspects involved. Real-world case studies are presented to depict the various approaches in different countries, and valuable lessons are drawn. The topics are addressed by engineers, advocates and economists employed by national and international spectrum regulators. The book is a tool that will allow the international regional and national regulators to better manage the RF spectrum, and will help operators and suppliers of wireless communications to better understand their regulators.
