Low Sampling Rate Digital Predistortion For Nonlinear Power Amplifier

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Signal Processing Techniques for Power Efficient Wireless Communication Systems

Author : Fernando Gregorio
Publisher : Springer Nature
ISBN 13 : 3030324370
Total Pages : 269 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Signal Processing Techniques for Power Efficient Wireless Communication Systems by : Fernando Gregorio

Download or read book Signal Processing Techniques for Power Efficient Wireless Communication Systems written by Fernando Gregorio and published by Springer Nature. This book was released on 2019-11-23 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a synthesis of the research carried out in the Laboratory of Signal Processing and Communications (LaPSyC), CONICET, Universidad Nacional del Sur, Argentina, since 2003. It presents models and techniques widely used by the signal processing community, focusing on low-complexity methodologies that are scalable to different applications. It also highlights measures of the performance and impact of each compensation technique. The book is divided into three parts: 1) basic models 2) compensation techniques and 3) applications in advanced technologies. The first part addresses basic architectures of transceivers, their component blocks and modulation techniques. It also describes the performance to be taken into account, regardless of the distortions that need to be compensated. In the second part, several schemes of compensation and/or reduction of imperfections are explored, including linearization of power amplifiers, compensation of the characteristics of analog-to- digital converters and CFO compensation for OFDM modulation. The third and last part demonstrates the use of some of these techniques in modern wireless-communication systems, such as full-duplex transmission, massive MIMO schemes and Internet of Things applications.

Communications, Signal Processing, and Systems

Author : Qilian Liang
Publisher : Springer Nature
ISBN 13 : 9811394091
Total Pages : 2720 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Communications, Signal Processing, and Systems by : Qilian Liang

Download or read book Communications, Signal Processing, and Systems written by Qilian Liang and published by Springer Nature. This book was released on 2020-04-04 with total page 2720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together papers from the 2019 International Conference on Communications, Signal Processing, and Systems, which was held in Urumqi, China, on July 20–22, 2019. Presenting the latest developments and discussing the interactions and links between these multidisciplinary fields, the book spans topics ranging from communications to signal processing and systems. It is chiefly intended for undergraduate and graduate students in electrical engineering, computer science and mathematics, researchers and engineers from academia and industry, as well as government employees.

Behavioral Modeling and Predistortion of Wideband Wireless Transmitters

Author : Fadhel M. Ghannouchi
Publisher : John Wiley & Sons
ISBN 13 : 1118406273
Total Pages : 271 pages
Book Rating : 4.1/5 (184 download)

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Book Synopsis Behavioral Modeling and Predistortion of Wideband Wireless Transmitters by : Fadhel M. Ghannouchi

Download or read book Behavioral Modeling and Predistortion of Wideband Wireless Transmitters written by Fadhel M. Ghannouchi and published by John Wiley & Sons. This book was released on 2015-07-20 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers theoretical and practical aspects related to the behavioral modelling and predistortion of wireless transmitters and power amplifiers. It includes simulation software that enables the users to apply the theory presented in the book. In the first section, the reader is given the general background of nonlinear dynamic systems along with their behavioral modelling from all its aspects. In the second part, a comprehensive compilation of behavioral models formulations and structures is provided including memory polynomial based models, box oriented models such as Hammerstein-based and Wiener-based models, and neural networks-based models. The book will be a valuable resource for design engineers, industrial engineers, applications engineers, postgraduate students, and researchers working on power amplifiers modelling, linearization, and design.

Distortion in RF Power Amplifiers

Author : Joel Vuolevi
Publisher : Artech House
ISBN 13 : 9781580536295
Total Pages : 280 pages
Book Rating : 4.5/5 (362 download)

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Book Synopsis Distortion in RF Power Amplifiers by : Joel Vuolevi

Download or read book Distortion in RF Power Amplifiers written by Joel Vuolevi and published by Artech House. This book was released on 2003 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a thorough treatment of distortion in RF power amplifiers. This unique resource offers expert guidance in designing easily linearizable systems that have low memory effects. It offers you a detailed understanding of how the matching impedances of a power amplifier and other RF circuits can be tuned to minimize overall distortion. What's more, you see how to build models that can be used for distortion simulations.

Inverse system identification with applications in predistortion

Author : Ylva Jung
Publisher : Linköping University Electronic Press
ISBN 13 : 9176851710
Total Pages : 224 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Inverse system identification with applications in predistortion by : Ylva Jung

Download or read book Inverse system identification with applications in predistortion written by Ylva Jung and published by Linköping University Electronic Press. This book was released on 2018-12-19 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Models are commonly used to simulate events and processes, and can be constructed from measured data using system identification. The common way is to model the system from input to output, but in this thesis we want to obtain the inverse of the system. Power amplifiers (PAs) used in communication devices can be nonlinear, and this causes interference in adjacent transmitting channels. A prefilter, called predistorter, can be used to invert the effects of the PA, such that the combination of predistorter and PA reconstructs an amplified version of the input signal. In this thesis, the predistortion problem has been investigated for outphasing power amplifiers, where the input signal is decomposed into two branches that are amplified separately by highly efficient nonlinear amplifiers and then recombined. We have formulated a model structure describing the imperfections in an outphasing abbrPA and the matching ideal predistorter. The predistorter can be estimated from measured data in different ways. Here, the initially nonconvex optimization problem has been developed into a convex problem. The predistorters have been evaluated in measurements. The goal with the inverse models in this thesis is to use them in cascade with the systems to reconstruct the original input. It is shown that the problems of identifying a model of a preinverse and a postinverse are fundamentally different. It turns out that the true inverse is not necessarily the best one when noise is present, and that other models and structures can lead to better inversion results. To construct a predistorter (for a PA, for example), a model of the inverse is used, and different methods can be used for the estimation. One common method is to estimate a postinverse, and then using it as a preinverse, making it straightforward to try out different model structures. Another is to construct a model of the system and then use it to estimate a preinverse in a second step. This method identifies the inverse in the setup it will be used, but leads to a complicated optimization problem. A third option is to model the forward system and then invert it. This method can be understood using standard identification theory in contrast to the ones above, but the model is tuned for the forward system, not the inverse. Models obtained using the various methods capture different properties of the system, and a more detailed analysis of the methods is presented for linear time-invariant systems and linear approximations of block-oriented systems. The theory is also illustrated in examples. When a preinverse is used, the input to the system will be changed, and typically the input data will be different than the original input. This is why the estimation of preinverses is more complicated than for postinverses, and one set of experimental data is not enough. Here, we have shown that identifying a preinverse in series with the system in repeated experiments can improve the inversion performance.

Digital Front-End in Wireless Communications and Broadcasting

Author : Fa-Long Luo
Publisher : Cambridge University Press
ISBN 13 : 1139499017
Total Pages : 788 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Digital Front-End in Wireless Communications and Broadcasting by : Fa-Long Luo

Download or read book Digital Front-End in Wireless Communications and Broadcasting written by Fa-Long Luo and published by Cambridge University Press. This book was released on 2011-09-29 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from signal processing algorithms to integrated circuit design, this complete guide to digital front-end is invaluable for professional engineers and researchers in the fields of signal processing, wireless communication and circuit design. Showing how theory is translated into practical technology, it covers all the relevant standards and gives readers the ideal design methodology to manage a rapidly increasing range of applications. Step-by-step information for designing practical systems is provided, with a systematic presentation of theory, principles, algorithms, standards and implementation. Design trade-offs are also included, as are practical implementation examples from real-world systems. A broad range of topics is covered, including digital pre-distortion (DPD), digital up-conversion (DUC), digital down-conversion (DDC) and DC-offset calibration. Other important areas discussed are peak-to-average power ratio (PAPR) reduction, crest factor reduction (CFR), pulse-shaping, image rejection, digital mixing, delay/gain/imbalance compensation, error correction, noise-shaping, numerical controlled oscillator (NCO) and various diversity methods.

Digital Synthesizers and Transmitters for Software Radio

Author : Jouko Vankka
Publisher : Springer Science & Business Media
ISBN 13 : 1402031955
Total Pages : 374 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Digital Synthesizers and Transmitters for Software Radio by : Jouko Vankka

Download or read book Digital Synthesizers and Transmitters for Software Radio written by Jouko Vankka and published by Springer Science & Business Media. This book was released on 2005-10-25 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The approach adopted in Digital Synthesizers and Transmitters for Software Radio will provide an understanding of key areas in the field of digital synthesizers and transmitters. It is easy to include different digital techniques in the digital synthesizers and transmitters by using digital signal processing methods, because the signal is in digital form. By programming the digital synthesizers and transmitters, adaptive channel bandwidths, modulation formats, frequency hopping and data rates are easily achieved. Techniques such as digital predistortion for power amplifier linearization, digital compensation methods for analog I/Q modulator nonlinearities and digital power control and ramping are presented in this book. The flexibility of the digital synthesizers and transmitters makes them ideal as signal generators for software radio. Software radios represent a major change in the design paradigm for radios in which a large portion of the functionality is implemented through programmable signal processing devices, giving the radio the ability to change its operating parameters to accommodate new features and capabilities. A software radio approach reduces the content of radio frequency (RF) and other analog components of traditional radios and emphasizes digital signal processing to enhance overall transmitter flexibility. Software radios are emerging in commercial and military infrastructure.

The Volterra and Wiener Theories of Nonlinear Systems

Author : Martin Schetzen
Publisher : Krieger Publishing Company
ISBN 13 :
Total Pages : 658 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The Volterra and Wiener Theories of Nonlinear Systems by : Martin Schetzen

Download or read book The Volterra and Wiener Theories of Nonlinear Systems written by Martin Schetzen and published by Krieger Publishing Company. This book was released on 2006 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents a complete and detailed development of the analysis, design and characterization of non-linear systems using the Volterra and Wiener theories, as well as gate functions, thus yielding new insights and a better comprehension of the subject. The Volterra and Wiener theories are useful in the study of systems in biological, mechanical, and electrical fields.

Power Efficiency in Broadband Wireless Communications

Author : Pooria Varahram
Publisher : CRC Press
ISBN 13 : 1466595485
Total Pages : 344 pages
Book Rating : 4.4/5 (665 download)

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Book Synopsis Power Efficiency in Broadband Wireless Communications by : Pooria Varahram

Download or read book Power Efficiency in Broadband Wireless Communications written by Pooria Varahram and published by CRC Press. This book was released on 2014-08-29 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Efficiency in Broadband Wireless Communications focuses on the improvement of power efficiency in wireless communication systems, especially of mobile devices. Reviewing cutting-edge techniques for conserving power and boosting power efficiency, the book examines various technologies and their impact on consumer devices. It considers each technology, first by introducing the main physical layer components in recent wireless communication systems along with their shortcomings, and then proposing solutions for overcoming these shortcomings. The book covers orthogonal frequency division multiplexing (OFDM) signal generation and formulation and examines the advantages and disadvantages of OFDM systems compared to alternative multiplexing. It introduces one of the main drawbacks of OFDM systems, peak-to-average power ratio (PAPR), and discusses several PAPR techniques. It also explains how to overcome the main drawbacks of real-world OFDM system applications. Considers power amplifier linearization for increasing power efficiency and reducing system costs and power dissipation Describes the implementation scenario of the most promising linearization technique, digital predistortion Presents some experimental demonstrations of digital predistortion when the device under test is in the loop Because the most costly device in a communication system that has a direct impact on power efficiency and power consumption is the power amplifier, the book details the behavior and characteristics of different classes of power amplifiers. Describing the evolution of the mobile cellular communication system, it details a cost-effective technique to help you increase power efficiency, reduce system costs, and prolong battery life in next generation mobile devices.

Behavioral Modeling and Linearization of RF Power Amplifiers

Author : John Wood
Publisher : Artech House
ISBN 13 : 1608071200
Total Pages : 379 pages
Book Rating : 4.6/5 (8 download)

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Book Synopsis Behavioral Modeling and Linearization of RF Power Amplifiers by : John Wood

Download or read book Behavioral Modeling and Linearization of RF Power Amplifiers written by John Wood and published by Artech House. This book was released on 2014-06-01 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless voice and data communications have made great improvements, with connectivity now virtually ubiquitous. Users are demanding essentially perfect transmission and reception of voice and data. The infrastructure that supports this wide connectivity and nearly error-free delivery of information is complex, costly, and continually being improved. This resource describes the mathematical methods and practical implementations of linearization techniques for RF power amplifiers for mobile communications. This includes a review of RF power amplifier design for high efficiency operation. Readers are also provided with mathematical approaches to modeling nonlinear dynamical systems, which can be applied in the context of modeling the PA for identification in a pre-distortion system. This book also describes typical approaches to linearization and digital pre-distortion that are used in practice.

Recent Technical Developments in Energy-Efficient 5G Mobile Cells

Author : Raed A. Abd-Alhameed
Publisher : MDPI
ISBN 13 : 3039362127
Total Pages : 292 pages
Book Rating : 4.0/5 (393 download)

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Book Synopsis Recent Technical Developments in Energy-Efficient 5G Mobile Cells by : Raed A. Abd-Alhameed

Download or read book Recent Technical Developments in Energy-Efficient 5G Mobile Cells written by Raed A. Abd-Alhameed and published by MDPI. This book was released on 2020-06-17 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the true innovation in engineering design that may be promoted by blending together models and methodologies from different disciplines, and, in this book, the target was exactly to follow this approach to deliver a new disruptive architecture to deliver these next-generation mobile small cell technologies. According to this design philosophy, the work within this book resides in the intersection of engineering paradigms that includes “cooperation”, “network coding”, and “smart energy-aware frontends”. These technologies will not only be considered as individual building blocks, but re-engineered according to an inter-design approach resulting in the enabler for energy efficient femtocell-like services on the move. The book aims to narrow the gap between the current networking technologies and the foreseen requirements that are targeted at the future development of the 5G mobile and wireless communications networks in terms of the higher networking capacity, the ability to support more users, the lower cost per bit, the enhanced energy efficiency, and adaptability to new services and devices (for example, smart cities, and the Internet of things (IoT)).

Multi-Mode / Multi-Band RF Transceivers for Wireless Communications

Author : Gernot Hueber
Publisher : John Wiley & Sons
ISBN 13 : 1118102207
Total Pages : 608 pages
Book Rating : 4.1/5 (181 download)

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Book Synopsis Multi-Mode / Multi-Band RF Transceivers for Wireless Communications by : Gernot Hueber

Download or read book Multi-Mode / Multi-Band RF Transceivers for Wireless Communications written by Gernot Hueber and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes cutting-edge physical layer technologies for multi-mode wireless RF transceivers. Includes original contributions from distinguished researchers and professionals. Covers cutting-edge physical layer technologies for multi-mode wireless RF transceivers. Contributors are all leading researchers and professionals in this field.

RF Power Amplifiers for Wireless Communications

Author : Steve C. Cripps
Publisher : Artech House Publishers
ISBN 13 : 9781596930186
Total Pages : 456 pages
Book Rating : 4.9/5 (31 download)

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Book Synopsis RF Power Amplifiers for Wireless Communications by : Steve C. Cripps

Download or read book RF Power Amplifiers for Wireless Communications written by Steve C. Cripps and published by Artech House Publishers. This book was released on 2006-01-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively revised edition offers a comprehensive, practical, up-to-date understanding of how to tackle a power amplifier design with confidence and quickly determine the cause of malfunctioning hardware.

Advanced Techniques in RF Power Amplifier Design

Author : Steve C. Cripps
Publisher : Artech House
ISBN 13 : 9781580535649
Total Pages : 342 pages
Book Rating : 4.5/5 (356 download)

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Book Synopsis Advanced Techniques in RF Power Amplifier Design by : Steve C. Cripps

Download or read book Advanced Techniques in RF Power Amplifier Design written by Steve C. Cripps and published by Artech House. This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much-anticipated volume builds on the author's best selling and classic work, RF Power Amplifiers for Wireless Communications (Artech House, 1999), offering experienced engineers a more in-depth understanding of the theory and design of RF power amplifiers. An invaluable reference tool for RF, digital and system level designers, the book includes discussions on the most critical topics for professionals in the field, including envelope power management schemes and linearization.

Opportunistic Spectrum Sharing and White Space Access

Author : Oliver Holland
Publisher : John Wiley & Sons
ISBN 13 : 1118893743
Total Pages : 752 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Opportunistic Spectrum Sharing and White Space Access by : Oliver Holland

Download or read book Opportunistic Spectrum Sharing and White Space Access written by Oliver Holland and published by John Wiley & Sons. This book was released on 2015-05-04 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the paradigms of opportunistic spectrum sharing and white space access as effective means to satisfy increasing demand for high-speed wireless communication and for novel wireless communication applications This book addresses opportunistic spectrum sharing and white space access, being particularly mindful of practical considerations and solutions. In Part I, spectrum sharing implementation issues are considered in terms of hardware platforms and software architectures for realization of flexible and spectrally agile transceivers. Part II addresses practical mechanisms supporting spectrum sharing, including spectrum sensing for opportunistic spectrum access, machine learning and decision making capabilities, aggregation of spectrum opportunities, and spectrally-agile radio waveforms. Part III presents the ongoing work on policy and regulation for efficient and reliable spectrum sharing, including major recent steps forward in TV White Space (TVWS) regulation and associated geolocation database approaches, policy management aspects, and novel licensing schemes supporting spectrum sharing. In Part IV, business and economic aspects of spectrum sharing are considered, including spectrum value modeling, discussion of issues around disruptive innovation that are pertinent to opportunistic spectrum sharing and white space access, and business benefits assessment of the novel spectrum sharing regulatory proposal Licensed Shared Access. Part V discusses deployments of opportunistic spectrum sharing and white space access solutions in practice, including work on TVWS system implementations, standardization activities, and development and testing of systems according to the standards. Discusses aspects of pioneering standards such as the IEEE 802.22 “Wi-Far” standard, the IEEE 802.11af “White-Fi” standard, the IEEE Dynamic Spectrum Access Networks Standards Committee standards, and the ETSI Reconfiguration Radio Systems standards Investigates regulatory and regulatory-linked solutions assisting opportunistic spectrum sharing and white space access, including geo-location database approaches and licensing enhancements Covers the pricing and value of spectrum, the economic effects and potentials of such technologies, and provides detailed business assessments of some particularly innovative regulatory proposals The flexible and efficient use of radio frequencies is necessary to cater for the increasing data traffic demand worldwide. This book addresses this necessity through its extensive coverage of opportunistic spectrum sharing and white space access solutions. Opportunistic Spectrum Sharing and White Space Access: The Practical Reality is a great resource for telecommunication engineers, researchers, and students.

Audio Power Amplifier Design

Author : Douglas Self
Publisher : Taylor & Francis
ISBN 13 : 1136123814
Total Pages : 1293 pages
Book Rating : 4.1/5 (361 download)

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Book Synopsis Audio Power Amplifier Design by : Douglas Self

Download or read book Audio Power Amplifier Design written by Douglas Self and published by Taylor & Francis. This book was released on 2013-07-04 with total page 1293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is essential for audio power amplifier designers and engineers for one simple reason...it enables you as a professional to develop reliable, high-performance circuits. The Author Douglas Self covers the major issues of distortion and linearity, power supplies, overload, DC-protection and reactive loading. He also tackles unusual forms of compensation and distortion produced by capacitors and fuses. This completely updated fifth edition includes four NEW chapters including one on The XD Principle, invented by the author, and used by Cambridge Audio. Crosstalk, power amplifier input systems, and microcontrollers in amplifiers are also now discussed in this fifth edition, making this book a must-have for audio power amplifier professionals and audiophiles.

Interleaving Concepts for Digital-to-Analog Converters

Author : Christian Schmidt
Publisher : Springer
ISBN 13 : 3658272643
Total Pages : 268 pages
Book Rating : 4.6/5 (582 download)

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Book Synopsis Interleaving Concepts for Digital-to-Analog Converters by : Christian Schmidt

Download or read book Interleaving Concepts for Digital-to-Analog Converters written by Christian Schmidt and published by Springer. This book was released on 2019-07-19 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern complementary metal oxide semiconductor (CMOS) digital-to-analog converters (DACs) are limited in their bandwidth due to technological constraints. These limitations can be overcome by parallel DAC architectures, which are called interleaving concepts. Christian Schmidt analyzes the limitations and the potential of two innovative DAC interleaving concepts to provide the basis for a practical implementation: the analog multiplexing DAC (AMUX-DAC) and the frequency interleaving DAC (FI-DAC). He presents analytical and discrete-time models as a theoretical foundation and develops digital signal processing (DSP) algorithms to compensate the analog impairments. Further, he quantifies the impact of various limiting parameters with numerical simulations and verifies both concepts in laboratory experiments. About the Author: Christian Schmidt works at the Fraunhofer Heinrich-Hertz-Institute, Berlin, Germany, on innovative solutions for broadband signal generation in the field of optical communications. The studies for his dissertation were carried out at the Technische Universität Berlin and at the Fraunhofer Heinrich-Hertz-Institute, both Berlin, Germany.