Data Symbol Synchronization for Digital Communications PDF Download

Author: John E. Fontana
Publisher:
ISBN:
Category :
Languages : en
Pages : 128

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Author: Fuyun Ling
Publisher: Cambridge University Press
ISBN: 110711473X
Category : Technology & Engineering
Languages : en
Pages : 399

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Book Description
This practical guide helps readers to learn how to develop and implement synchronization functions in digital communication systems.

Author: David Peter Strickland
Publisher:
ISBN:
Category : Digital communications
Languages : en
Pages : 396

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Author: Umberto Mengali
Publisher: Springer Science & Business Media
ISBN: 1489918078
Category : Technology & Engineering
Languages : en
Pages : 532

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Book Description
Synchronization is a critical function in digital communications; its failures may have catastrophic effects on the transmission system performance. Furthermore, synchronization circuits comprehend such a large part of the receiver hardware that their implementation has a substantial impact on the overall costs. For these reasons design engineers are particularly concerned with the development of new and more efficient synchronization structures. Unfortunately, the advent of digital VLSI technology has radically affected modem design rules, to a point that most analog techniques employed so far have become totally obsolete. Although digital synchronization methods are well established by now in the literature, they only appear in the form of technical papers, often concentrating on specific performance or implementation issues. As a consequence they are hardly useful to give a unified view of an otherwise seemingly heterogeneous field. It is widely recognized that a fundamental understanding of digital synchronization can only be reached by providing the designer with a solid theoretical framework, or else he will not know where to adjust his methods when he attempts to apply them to new situations. The task of the present book is just to develop such a framework.

Author: Mohammed Al-Hamiri
Publisher:
ISBN:
Category : Signal processing
Languages : en
Pages : 240

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"Timing synchronization plays an important role in recovering the original transmitted signal in telecommunication systems. In order to have a communication system that operates at the correct time and in the correct order, it is necessary to synchronize to the transmitter’s symbol timing. Synchronization can be accomplished when the receiver clock tracks the periodic timing information in a transmitted signal to reproduce the original signal. In this thesis work, we report the design, implementation and evaluation of a timing synchronization algorithm based on the technique first proposed by Gardner [1], applied to wireless communication using the Alamouti spacetime code [2] under QPSK modulation with halfsine pulses. To achieve this, a mathematical model is introduced which includes software design of communication algorithms. In this modeling, we simulate the Gardner algorithm in MATLAB. Then, five techniques are introduced to improve the performance of the loop filter in the digital receiver, and they are successfully implemented and evaluated in Matlab. These five techniques prove that there is an improvement in digital receiver performance in terms of the convergence speed and the communication system complexity. On the other hand, the optimum decoding of the Alamouti spacetime code, as initially proposed, makes the nontrivial assumption that the communication system is perfectly synchronized. Realistic wireless environments contain additive white Gaussian noise (AWGN), multipath fading, and it is not perfectly synchronized. In this thesis, the Alamouti spacetime code technique is written for QPSK modulation scheme to work in realistic environment that involves a timing synchronization technique. We compare the bit error rate (BER) of the Alamouti decoder when synchronized using the proposed algorithms with the ideal results found in the literature, and we find them to be similar, proving that the synchronization algorithm is in fact achieving optimum synchronization. This thesis presents synchronization algorithms that are necessary for a complete working wireless Alamouti technique. Also, this thesis improves the communication system performance in terms of the convergence speed with reducing the computational complexity of the communication system design."--Abstract.

Author: Ali Grami
Publisher: Academic Press
ISBN: 0124076580
Category : Technology & Engineering
Languages : en
Pages : 604

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Book Description
Introduction to Digital Communications explores the basic principles in the analysis and design of digital communication systems, including design objectives, constraints and trade-offs. After portraying the big picture and laying the background material, this book lucidly progresses to a comprehensive and detailed discussion of all critical elements and key functions in digital communications. - The first undergraduate-level textbook exclusively on digital communications, with a complete coverage of source and channel coding, modulation, and synchronization. - Discusses major aspects of communication networks and multiuser communications - Provides insightful descriptions and intuitive explanations of all complex concepts - Focuses on practical applications and illustrative examples. - A companion Web site includes solutions to end-of-chapter problems and computer exercises, lecture slides, and figures and tables from the text

Author: Richard W. Middlestead
Publisher: John Wiley & Sons
ISBN: 0470408529
Category : Technology & Engineering
Languages : en
Pages : 836

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Book Description
This book uses a practical approach in the application of theoretical concepts to digital communications in the design of software defined radio modems. This book discusses the design, implementation and performance verification of waveforms and algorithms appropriate for digital data modulation and demodulation in modern communication systems. Using a building-block approach, the author provides an introductory to the advanced understanding of acquisition and data detection using source and executable simulation code to validate the communication system performance with respect to theory and design specifications. The author focuses on theoretical analysis, algorithm design, firmware and software designs and subsystem and system testing. This book treats system designs with a variety of channel characteristics from very low to optical frequencies. This book offers system analysis and subsystem implementation options for acquisition and data detection appropriate to the channel conditions and system specifications, and provides test methods for demonstrating system performance. This book also: Outlines fundamental system requirements and related analysis that must be established prior to a detailed subsystem design Includes many examples that highlight various analytical solutions and case studies that characterize various system performance measures Discusses various aspects of atmospheric propagation using the spherical 4/3 effective earth radius model Examines Ionospheric propagation and uses the Rayleigh fading channel to evaluate link performance using several robust waveform modulations Contains end-of-chapter problems, allowing the reader to further engage with the text Digital Communications with Emphasis on Data Modems is a great resource for communication-system and digital signal processing engineers and students looking for in-depth theory as well as practical implementations.

Author: Michael Rice
Publisher: Prentice Hall
ISBN: 0130304972
Category : Digital communications
Languages : en
Pages : 801

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Book Description
"Digital Communications: A Discrete-Time Approach by Michael Rice presents the traditional topics in digital communications such as modulation (PAM and QAM); detection (using the matched filer); and performance in AWGN. It also includes less traditional topics as pulse shaping; carrier phase synchronization; symbol timing synchronization; automatic gain control; channel selection and advanced discrete-time architectures."--BOOK JACKET.

Author: Mitra, Atis D.
Publisher: Vikas Publishing House
ISBN: 9325993562
Category : Technology & Engineering
Languages : en
Pages : 374

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Book Description
Digital Communications is the result of the author’s 38 years’ experience in teaching, and in design and development of various wireless communication systems. It covers all primary areas in digital communication systems in engineering. The book intends to give the students a grasp of the basic issues of communication systems during transition from analog to digital. To make the reading interesting as well as systematic, conscious efforts have been made to explain the basics of technology, avoiding complex mathematics as far as possible. Numerical problems are then introduced to help the students fully understand the concepts and applications. KEY FEATURES • Complete and thorough introduction to the analysis and design of digital communication systems • Concepts explained with practical applications derived from the personal experience of the author • Analytical steps of all derivation without any external reference • Numerous numerical examples to help students understand the fundamental applications of the concepts in practice

Author: Denis Silage
Publisher: Firewall Media
ISBN: 9788131800164
Category :
Languages : en
Pages : 402

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