Bandwidth Efficiency And Power Efficiency Issues For Wireless Transmissions

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Bandwidth Efficiency and Power Efficiency Issues for Wireless Transmissions

Author : Ning Chen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (71 download)

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Book Synopsis Bandwidth Efficiency and Power Efficiency Issues for Wireless Transmissions by : Ning Chen

Download or read book Bandwidth Efficiency and Power Efficiency Issues for Wireless Transmissions written by Ning Chen and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As wireless communication becomes an ever-more important and pervasive part of our everyday life, system capacity and quality of service issues are becoming more critical. In order to increase the system capacity and improve the quality of service, it is necessary that we pay closer attention to bandwidth and power efficiency issues. Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier modulation technique for high speed data transmission and is generally regarded as bandwidth efficient. However, OFDM signals suffer from high peak-to-average power ratios (PARs) which lead to power inefficiency in the RF portion of the transmitter. Moreover, in OFDM, the well-known pilot tone assisted modulation (PTAM) technique utilizes a number of dedicated training pilots to acquire the channel state information (CSI), resulting in somewhat reduced bandwidth efficiency. In this dissertation, we will address the above mentioned bandwidth and power efficiency issues in wireless transmissions. To avoid bandwidth efficiency loss due to dedicated training, we will first develop a superimposed training framework that can be used to track the frequency selective as well as the Doppler shift characteristics of a channel. Later on, we will propose a generalized superimposed training framework that allows improved channel estimates. To improve the power efficiency, we adopt the selected mapping (SLM) framework to reduce the PARs for both OFDM and forward link Code Division Multiple Access (CDMA). We first propose a dynamic SLM algorithm to greatly reduce the computational requirement of SLM without sacrificing its PAR reducing capability. We propose a number of blind SLM techniques for OFDM and for forward link CDMA; they require no side information and are easy to implement. Our proposed blind SLM technique for OFDM is a novel joint channel estimation and PAR reduction algorithm, for which bandwidth efficiency power efficiency - complexity - bit error rate tradeoffs are carefully considered.

Energy and Bandwidth-Efficient Wireless Transmission

Author : Wei Gao
Publisher : Springer
ISBN 13 : 3319442228
Total Pages : 499 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Energy and Bandwidth-Efficient Wireless Transmission by : Wei Gao

Download or read book Energy and Bandwidth-Efficient Wireless Transmission written by Wei Gao and published by Springer. This book was released on 2017-02-10 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces key modulation and predistortion techniques for approaching power and spectrum-efficient transmission for wireless communication systems. The book presents a combination of theoretical principles, practical implementations, and actual tests. It focuses on power and spectrally efficient modulation and transmission techniques in the portable wireless communication systems, and introduces currently developed and designed RF transceivers in the latest wireless markets. Most materials, design examples, and design strategies used are based on the author’s two decades of work in the digital communication fields, especially in the areas of the digital modulations, demodulations, digital signal processing, and linearization of power amplifiers. The applications of these practical products and equipment cover the satellite communications on earth station systems, microwave communication systems, 2G GSM and 3G WCDMA mobile communication systems, and 802.11 WLAN systems.>

Spectrum Sharing in Wireless Networks

Author : John D. Matyjas
Publisher : CRC Press
ISBN 13 : 1315353350
Total Pages : 697 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Spectrum Sharing in Wireless Networks by : John D. Matyjas

Download or read book Spectrum Sharing in Wireless Networks written by John D. Matyjas and published by CRC Press. This book was released on 2016-11-17 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectrum Sharing in Wireless Networks: Fairness, Efficiency, and Security provides a broad overview of wireless network spectrum sharing in seven distinct sections: The first section examines the big picture and basic principles, explaining the concepts of spectrum sharing, hardware/software function requirements for efficient sharing, and future trends of sharing strategies. The second section contains more than 10 chapters that discuss differing approaches to efficient spectrum sharing. The authors introduce a new coexistence and sharing scheme for multi-hop networks, describe the space-time sharing concept, introduce LTE-U, and examine sharing in broadcast and unicast environments. They then talk about different cooperation strategies to achieve mutual benefits for primary users (PU) and secondary users (SU), discuss protocols in a spectrum sharing context, and provide different game theory models between PUs and SUs. The third section explains how to model the interactions of PUs and SUs, using an efficient calculation method to determine spectrum availability. Additionally, this section explains how to use scheduling models to achieve efficient SU traffic delivery. The subject of the fourth section is MIMO-oriented design. It focuses on how directional antennas and MIMO antennas greatly enhance wireless network performance. The authors include a few chapters on capacity/rate calculations as well as beamforming issues under MIMO antennas. Power control is covered in the fifth section which also describes the interference-aware power allocation schemes among cognitive radio users and the power control schemes in cognitive radios. The sixth section provides a comprehensive look at security issues, including different types of spectrum sharing attacks and threats as well as corresponding countermeasure schemes. The seventh and final section covers issues pertaining to military applications and examines how the military task protects its data flows when sharing the spectrum with civilian applications.

The Evolution of Untethered Communications

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 9780309059466
Total Pages : 208 pages
Book Rating : 4.0/5 (594 download)

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Book Synopsis The Evolution of Untethered Communications by : National Research Council

Download or read book The Evolution of Untethered Communications written by National Research Council and published by National Academies Press. This book was released on 1998-01-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Spatial Spectral Efficiency Analysis for Wireless Communications

Author : Lei Zhang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (895 download)

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Book Synopsis Spatial Spectral Efficiency Analysis for Wireless Communications by : Lei Zhang

Download or read book Spatial Spectral Efficiency Analysis for Wireless Communications written by Lei Zhang and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectrum utilization efficiency is one of the primary concerns in the design of future wireless communication systems. Most performance metrics for wireless communication systems focus on either link level capacity or network throughput while ignore the spatial property of wireless transmissions. In this dissertation, we focus on the spatial spectral utilization efficiency of wireless transmissions. We first study the spatial spectral efficiency of single-cell and multi-cell wireless relay systems using area spectral efficiency (ASE) performance metric. We then generalize the performance metric, termed as generalized area spectral efficiency (GASE), to measure the spatial spectral utilization efficiency of arbitrary wireless transmissions. In particular, we first introduce the definition of GASE by illustrating its evaluation for conventional point-to-point transmission. Then we extend the analysis to four different transmission scenarios, namely dual-hop relay transmission, three-node cooperative relay transmission, two-user X channels, and underlay cognitive radio transmission. Finally, we apply the GASE performance metric to investigate the spatial spectral efficiency of wireless network with Poisson distributed nodes and quantify the spatial spectral opportunities that could be explored with secondary cognitive systems. Our research on the spatial spectral utilization efficiency provides a new perspective on the designing of wireless communication systems, especially on the transmission power optimization and space-spectrum resource exploitation.

Energy and Bandwidth-Efficient Wireless Transmission

Author : Wei Gao
Publisher : Springer
ISBN 13 : 9783319830148
Total Pages : 485 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Energy and Bandwidth-Efficient Wireless Transmission by : Wei Gao

Download or read book Energy and Bandwidth-Efficient Wireless Transmission written by Wei Gao and published by Springer. This book was released on 2018-07-13 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces key modulation and predistortion techniques for approaching power and spectrum-efficient transmission for wireless communication systems. The book presents a combination of theoretical principles, practical implementations, and actual tests. It focuses on power and spectrally efficient modulation and transmission techniques in the portable wireless communication systems, and introduces currently developed and designed RF transceivers in the latest wireless markets. Most materials, design examples, and design strategies used are based on the author’s two decades of work in the digital communication fields, especially in the areas of the digital modulations, demodulations, digital signal processing, and linearization of power amplifiers. The applications of these practical products and equipment cover the satellite communications on earth station systems, microwave communication systems, 2G GSM and 3G WCDMA mobile communication systems, and 802.11 WLAN systems.>

Mobile Computing

Author : Tomasz Imielinski
Publisher : Springer Science & Business Media
ISBN 13 : 0792396979
Total Pages : 736 pages
Book Rating : 4.7/5 (923 download)

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Book Synopsis Mobile Computing by : Tomasz Imielinski

Download or read book Mobile Computing written by Tomasz Imielinski and published by Springer Science & Business Media. This book was released on 1996-02-29 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid development of wireless digital communication technology has cre ated capabilities that software systems are only beginning to exploit. The falling cost of both communication and of mobile computing devices (laptop computers, hand-held computers, etc. ) is making wireless computing affordable not only to business users but also to consumers. Mobile computing is not a "scaled-down" version of the established and we- studied field of distributed computing. The nature of wireless communication media and the mobility of computers combine to create fundamentally new problems in networking, operating systems, and information systems. Further more, many of the applications envisioned for mobile computing place novel demands on software systems. Although mobile computing is still in its infancy, some basic concepts have been identified and several seminal experimental systems developed. This book includes a set of contributed papers that describe these concepts and sys tems. Other papers describe applications that are currently being deployed and tested. The first chapter offers an introduction to the field of mobile computing, a survey of technical issues, and a summary of the papers that comprise sub sequent chapters. We have chosen to reprint several key papers that appeared previously in conference proceedings. Many of the papers in this book are be ing published here for the first time. Of these new papers, some are expanded versions of papers first presented at the NSF-sponsored Mobidata Workshop on Mobile and Wireless Information Systems, held at Rutgers University on Oct 31 and Nov 1, 1994.

Practical Digital Wireless Signals

Author : Earl McCune
Publisher : Cambridge University Press
ISBN 13 : 1139484737
Total Pages : 435 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Practical Digital Wireless Signals by : Earl McCune

Download or read book Practical Digital Wireless Signals written by Earl McCune and published by Cambridge University Press. This book was released on 2010-02-04 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Do you need to know what signal type to select for a wireless application? Quickly develop a useful expertise in digital modulation with this practical guide, based on the author's experience of over thirty years in industrial design. You will understand the physical meaning behind the mathematics of wireless signals and learn the intricacies and tradeoffs in signal selection and design. Six modulation families and twelve modulation types are covered in depth, together with a quantitative ranking of relative cost incurred to implement any of twelve modulation types. Extensive discussions of the Shannon Limit, Nyquist filtering, efficiency measures and signal-to-noise measures are provided, radio wave propagation and antennas, multiple access techniques, and signal coding principles are all covered, and spread spectrum and wireless system operation requirements are presented.

Dynamic Spectrum Access and Management in Cognitive Radio Networks

Author : Ekram Hossain
Publisher : Cambridge University Press
ISBN 13 : 0521898471
Total Pages : 504 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Dynamic Spectrum Access and Management in Cognitive Radio Networks by : Ekram Hossain

Download or read book Dynamic Spectrum Access and Management in Cognitive Radio Networks written by Ekram Hossain and published by Cambridge University Press. This book was released on 2009-06-18 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: An all-inclusive introduction to this revolutionary technology, presenting the key research issues and state-of-the-art design, analysis, and optimization techniques.

Information, Communication and Computing Technology

Author : Saroj Kaushik
Publisher : Springer
ISBN 13 : 9811065446
Total Pages : 396 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Information, Communication and Computing Technology by : Saroj Kaushik

Download or read book Information, Communication and Computing Technology written by Saroj Kaushik and published by Springer. This book was released on 2017-10-10 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Information, Communication and Computing Technology, ICICCT 2017, held in New Delhi, India, in May 2017. The 29 revised full papers and the 5 revised short papers presented in this volume were carefully reviewed and selected from 219 submissions. The papers are organized in topical sections on network systems and communication security; software engineering; algorithm and high performance computing.

Technical, Commercial and Regulatory Challenges of QoS

Author : XiPeng Xiao
Publisher : Morgan Kaufmann
ISBN 13 : 0080920314
Total Pages : 309 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Technical, Commercial and Regulatory Challenges of QoS by : XiPeng Xiao

Download or read book Technical, Commercial and Regulatory Challenges of QoS written by XiPeng Xiao and published by Morgan Kaufmann. This book was released on 2008-10-27 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical, Commerical and Regulatory Challenges of QoS provides a comprehensive examination of Internet QoS theory, standards, vendor implementation and network deployment from the practitioner's point of view, including extensive discussion of related economic and regulatory issues. Written in a technology-light way so that a variety of professionals and researchers in the information and networking industries can easily grasp the material. Includes case studies based on real-world experiences from industry. The author starts by discussing the economic, regulatory and technical challenges of the existing QoS model. Key coverage includes defining a clear business model for selling and buying QoS in relation to current and future direction of government regulation and QoS interoperability (or lack thereof) between carriers and networking devices. The author then demonstrates how to improve the current QoS model to create a clear selling point, less regulation uncertainty, and higher chance of deployment success. This includes discussion of QoS re-packaging to end-users; economic and regulatory benefits of the re-packaging; and the overall benefits of an improved technical approach. Finally, the author discusses the future evolution of QoS from an Internet philosophy perspective and lets the reader draw the conclusions. This book is the first QoS book to provide in depth coverage on the commercial and regulatory aspects of QoS, in addition to the technical aspect. From that, readers can grasp the commercial and regulatory issues of QoS and their implications on the overall QoS business model. This book is also the first QoS book to provide case studies of real world QoS deployments, contributed by the people who did the actual deployments. From that, readers can grasp the practical issues of QoS in real world. This book is also the first QoS book to cover both wireline QoS and wireless QoS. Readers can grasp the QoS issues in the wireless world. The book was reviewed and endorsed by a long list of prominent industrial and academic figures. Discusses QoS technology in relation to economic and regulatory issues Includes case studies based on real-world examples from industry practitioners Provides unique insight into how to improve the current QoS model to create a clear selling point, less regulatory uncertainty, and higher chance of deployment success

Industry 4.0 Vision for the Supply of Energy and Materials

Author : Mahdi Sharifzadeh
Publisher : John Wiley & Sons
ISBN 13 : 1119695953
Total Pages : 400 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Industry 4.0 Vision for the Supply of Energy and Materials by : Mahdi Sharifzadeh

Download or read book Industry 4.0 Vision for the Supply of Energy and Materials written by Mahdi Sharifzadeh and published by John Wiley & Sons. This book was released on 2022-05-11 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industry 4.0 Vision for the Supply of Energy and Materials Explore the impact of Industry 4.0 technologies on the supply chain with this authoritative text written by a leader in his field In Industry 4.0 Vision for the Supply of Energy and Materials, distinguished researcher and editor, Dr. Mahdi Sharifzadeh, delivers thematic, analytic, and applied discussions of the Industry 4.0 vision for supply chain design and operation. The book compiles all current aspects and emerging notions of Industry 4.0 into clusters of “enablers” and “analytics” of Supply Chain 4.0. Their multifaceted and highly interconnected nature is discussed at length, as are their diverse range of applications. You will discover uses of these new technologies ranging from the supply of conventional energy networks to renewables, pharmaceuticals, and additive manufacturing. You will also learn about their implications for economic prosperity and environmental sustainability. For each sector, this book scrutinizes current industrial practice and discusses developing concepts. Finally, the book concludes with potential future research directions of interest to industry practitioners and academics alike. Readers will also benefit from the inclusion of: A thorough introduction to connectivity through wireless communications and remote sensors An exploration of blockchains and smart contracts, as well as robotics and automation and cloud computing Practical discussions of supply chain analytics, including big data, machine-learning, and artificial intelligence, as well as supply chain modeling, optimization, and control A concise treatment of Industry 4.0 applications in supply chain design and operation, including the circular economy and the power industry An analysis of the oil, gas, and petrochemical industry, the pharmaceutical industry, and additive manufacturing Perfect for PhD-level and Postdoctoral researchers and industrial researchers, Industry 4.0 Vision for the Supply of Energy and Materials will also earn a place in the libraries of working professionals with an interest in the quantitative analysis of Supply Chain 4.0 concepts and techniques.

Fading and Shadowing in Wireless Systems

Author : P. Mohana Shankar
Publisher : Springer
ISBN 13 : 3319531980
Total Pages : 827 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Fading and Shadowing in Wireless Systems by : P. Mohana Shankar

Download or read book Fading and Shadowing in Wireless Systems written by P. Mohana Shankar and published by Springer. This book was released on 2017-05-05 with total page 827 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of fading and shadowing in wireless channels. A number of statistical models including simple, hybrid, compound and cascaded ones are presented along with a detailed discussion of diversity techniques employed to mitigate the effects of fading and shadowing. The effects of co-channel interference before and after the implementation of diversity are also analyzed. To facilitate easy understanding of the models and the analysis, the background on probability and random variables is presented with relevant derivations of densities of the sums, products, ratios as well as order statistics of random variables. The book also provides material on digital modems of interest in wireless systems. The updated edition expands the background materials on probability by offering sections on Laplace and Mellin transforms, parameter estimation, statistical testing and receiver operating characteristics. Newer models for fading, shadowing and shadowed fading are included along with the analysis of diversity combining algorithms. In addition, this edition contains a new chapter on Cognitive Radio. Based on the response from readers of the First Edition, detailed Matlab scripts used in the preparation of this edition are provided. Wherever necessary, Maple scripts used are also provided.

Advanced Wireless Transmission Technologies

Author : Hong-Chuan Yang
Publisher : Cambridge University Press
ISBN 13 : 1108349757
Total Pages : 427 pages
Book Rating : 4.1/5 (83 download)

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Book Synopsis Advanced Wireless Transmission Technologies by : Hong-Chuan Yang

Download or read book Advanced Wireless Transmission Technologies written by Hong-Chuan Yang and published by Cambridge University Press. This book was released on 2020-01-30 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elucidating fundamental design principles by means of accurate trade-off analysis of relevant design options using suitable mathematical tools, this is the first book to provide a coherent treatment of transmission technologies essential to current and future wireless systems. Develop in-depth knowledge of the capabilities and limitations of wireless transmission technologies in supporting high-quality wireless transmission services, and foster a thorough understanding of various design trade-offs, to help identify an ideal choice for your own application requirements. Key technologies such as advanced diversity combining, multi-user scheduling, multi-user multi-antenna transmission, relay transmission, and cognitive radio are examined, making this an essential resource for senior graduate students, researchers, and engineers working in wireless communications.

Intelligent Reflecting Surface-Aided Physical-Layer Security

Author : Feng Shu
Publisher : Springer Nature
ISBN 13 : 3031418123
Total Pages : 250 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Intelligent Reflecting Surface-Aided Physical-Layer Security by : Feng Shu

Download or read book Intelligent Reflecting Surface-Aided Physical-Layer Security written by Feng Shu and published by Springer Nature. This book was released on 2023-11-12 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the problems of Physical Layer Security (PLS) in Intelligent Reflecting Surface (IRS)-assisted wireless networks. It also discusses the corresponding methods to solve these problems in a comprehensive style. Furthermore, some potential challenges are well analyzed. This book is divided into 11 chapters. Chapter 1 introduces the propagation characteristics of IRS-aided PLS communications. From Chapter 2 to Chapter 10, The authors mainly provide deep investigations of different PLS problems of IRS-aided wireless networks, namely, directional modulation (DM) networks. Chapter 11 draws a conclusion and includes the future research directions. Researchers working in wireless communications, or advanced-level computer science or electrical engineering students, can learn about secure communication in the physical layer through our book. Professionals or engineers working in this field will also benefit from this book.

Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management

Author : Zaman, Noor
Publisher : IGI Global
ISBN 13 : 1466601027
Total Pages : 656 pages
Book Rating : 4.4/5 (666 download)

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Book Synopsis Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management by : Zaman, Noor

Download or read book Wireless Sensor Networks and Energy Efficiency: Protocols, Routing and Management written by Zaman, Noor and published by IGI Global. This book was released on 2012-01-31 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book focuses on wireless sensor networks and their operation, covering topics including routing, energy efficiency and management"--

Green Communications

Author : Konstantinos Samdanis
Publisher : John Wiley & Sons
ISBN 13 : 1118759230
Total Pages : 450 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Green Communications by : Konstantinos Samdanis

Download or read book Green Communications written by Konstantinos Samdanis and published by John Wiley & Sons. This book was released on 2015-07-23 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive view of green communications considering all areas of ICT including wireless and wired networks. It analyses particular concepts and practices, addressing holistic approaches in future networks considering a system perspective. It makes full use of tables, illustrations, performance graphs, case studies and examples making it accessible for a wide audience.