Multiple Symbol Trellis Coding of Full Response Continuous Phase Modulation for Coherent and Non-coherent Detection PDF Download

Author: Ho Kyoung Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 204

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Author: John B. Anderson
Publisher: Springer Science & Business Media
ISBN: 1489920315
Category : Technology & Engineering
Languages : en
Pages : 509

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Book Description
The last ten years have seen a great flowering of the theory of digital data modulation. This book is a treatise on digital modulation theory, with an emphasis on these more recent innovations. It has its origins in a collabor ation among the authors that began in 1977. At that time it seemed odd to us that the subjects of error-correcting codes and data modulation were so separated; it seemed also that not enough understanding underlay the mostly ad hoc approaches to data transmission. A great many others were intrigued, too, and the result was a large body of new work that makes up most of this book. Now the older disciplines of detection theory and coding theory have been generalized and applied to the point where it is hard to tell where these end and the theories of signal design and modulation begin. Despite our emphasis on the events of the last ten years, we have included all the traditional topics of digital phase modulation. Signal space concepts are developed, as are simple phase-shift-keyed and pulse-shaped modulations; receiver structures are discussed, from the simple linear receiver to the Viterbi algorithm; the effects of channel filtering and of hardlimiting are described. The volume thus serves well as a pedagogical book for research engineers in industry and second-year graduate students in communications engineering. The production of a manageable book required that many topics be left out.

Author: John B. Anderson
Publisher: Springer Science & Business Media
ISBN: 9780306421952
Category : Technology & Engineering
Languages : en
Pages : 520

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Book Description
The last ten years have seen a great flowering of the theory of digital data modulation. This book is a treatise on digital modulation theory, with an emphasis on these more recent innovations. It has its origins in a collabor ation among the authors that began in 1977. At that time it seemed odd to us that the subjects of error-correcting codes and data modulation were so separated; it seemed also that not enough understanding underlay the mostly ad hoc approaches to data transmission. A great many others were intrigued, too, and the result was a large body of new work that makes up most of this book. Now the older disciplines of detection theory and coding theory have been generalized and applied to the point where it is hard to tell where these end and the theories of signal design and modulation begin. Despite our emphasis on the events of the last ten years, we have included all the traditional topics of digital phase modulation. Signal space concepts are developed, as are simple phase-shift-keyed and pulse-shaped modulations; receiver structures are discussed, from the simple linear receiver to the Viterbi algorithm; the effects of channel filtering and of hardlimiting are described. The volume thus serves well as a pedagogical book for research engineers in industry and second-year graduate students in communications engineering. The production of a manageable book required that many topics be left out.

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 884

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Author: IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications
Publisher:
ISBN:
Category : Mobile communication systems
Languages : en
Pages : 832

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Book Description

Author: Anuj Raj Ojha
Publisher:
ISBN: 9780549352280
Category : Frequency spectra
Languages : en
Pages : 99

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Book Description
Continuous Phase Frequency Shift Keying (CPFSK) is a type of non-linear modulation, where the phase change from one symbol to the next symbol is continuous resulting in a faster spectral roll-off and smaller bandwidth. The multi-amplitude CPFSK (MACPFSK), which is created by superposition of CPFSK signals, is a class of CPFSK signals which also preserves the phase continuity; however it looses the constant envelope property. Application of trellis coding to MACPFSK significantly improves the system performance as it increases the minimum distance by introducing restrictions on the symbols that can be in a sequence. Thus a trellis code can be efficiently designed to achieve maximum separation in signals resulting in higher minimum distance value. Moreover, another class of Trellis Coded MACPFSK (TC-MACPFSK) signals can also be generated by altering the alignment of individual CPFSK signal, which is equivalent to the introduction of timing offset. This method inherently reduces the Peak to Average Power Ratio (PAPR) and also improves the system performance in terms of minimum distance for a particular value of timing offset.

Author: Savo G. Glisic
Publisher: Springer Science & Business Media
ISBN: 146152251X
Category : Technology & Engineering
Languages : en
Pages : 366

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Code Division Multiple Access (CDMA) has become one of the main candidates for the next generation of mobile land and satellite communication systems. CDMA is based on spread spectrum techniques, which have been used in military applications for over half a century. Only recently, however, has it been recognised that spread spectrum techniques, combined with some additional steps, can provide higher capacity and better flexibility for the mobile cellular radio communications. Code Division Multiple Access Communications comprises a set of contributions from the most distinguished world scientists in the field. These papers review the basic theory and some of the most important problems related to spread spectrum and CDMA. The topics covered centre on the information theory aspects of CDMA; interference suppression and performance analysis. The material presented in this book summarises the main problems in modern CDMA theory and practice and gives a solid starting point for studying this complex and still challenging field. As such Code Division Multiple Access Communications is essential reading for all researchers and designers working in mobile communication systems and provides an excellent text for a course on the subject.

Author:
Publisher:
ISBN:
Category : Communications, Military
Languages : en
Pages : 424

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Author:
Publisher:
ISBN:
Category : Computer networks
Languages : en
Pages : 242

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Book Description

Author: John B. Anderson
Publisher: Springer Science & Business Media
ISBN: 0306477920
Category : Technology & Engineering
Languages : en
Pages : 494

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Book Description
Coded Modulation Systems is an introduction to the subject of coded modulation in digital communication. It is designed for classroom use and for anyone wanting to learn the ideas behind this modern kind of coding. Coded modulation is signal encoding that takes into account the nature of the channel over which it is used. Traditional error correcting codes work with bits and add redundant bits in order to correct transmission errors. In coded modulation, continuous time signals and their phases and amplitudes play the major role. The coding can be seen as a patterning of these quantities. The object is still to correct errors, but more fundamentally, it is to conserve signal energy and bandwidth at a given error performance. The book divides coded modulation into three major parts. Trellis coded modulation (TCM) schemes encode the points of QAM constellations; lattice coding and set-partition techniques play major roles here. Continuous-phase modulation (CPM) codes encode the signal phase, and create constant envelope RF signals. The partial-response signaling (PRS) field includes intersymbol interference problems, signals generated by real convolution, and signals created by lowpass filtering. In addition to these topics, the book covers coding techniques of several kinds for fading channels, spread spectrum and repeat-request systems. The history of the subject is fully traced back to the formative work of Shannon in 1949. Full explanation of the basics and complete homework problems make the book ideal for self-study or classroom use.