Author: Anuj Raj Ojha
Publisher:
ISBN: 9780549352280
Category : Frequency spectra
Languages : en
Pages : 99
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.
Trellis Coding on Multi-amplitude Continuous Phase Frequency Shift Keying
Author: Anuj Raj Ojha
Publisher:
ISBN: 9780549352280
Category : Frequency spectra
Languages : en
Pages : 99
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.
Publisher:
ISBN: 9780549352280
Category : Frequency spectra
Languages : en
Pages : 99
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.
On Trellis Coded Continuous Phase Frequency Shift Keying
Author: Hsin-Hsyong Richard Yang
Publisher:
ISBN: 9780315982277
Category : Coding theory
Languages : en
Pages : 160
Book Description
Publisher:
ISBN: 9780315982277
Category : Coding theory
Languages : en
Pages : 160
Book Description
Multi-Level Trellis Coded Modulation and Multi-Stage Decoding
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722392994
Category :
Languages : en
Pages : 42
Book Description
Several constructions for multi-level trellis codes are presented and many codes with better performance than previously known codes are found. These codes provide a flexible trade-off between coding gain, decoding complexity, and decoding delay. New multi-level trellis coded modulation schemes using generalized set partitioning methods are developed for Quadrature Amplitude Modulation (QAM) and Phase Shift Keying (PSK) signal sets. New rotationally invariant multi-level trellis codes which can be combined with differential encoding to resolve phase ambiguity are presented. Costello, Daniel J., Jr. and Wu, Jiantian and Lin, Shu Unspecified Center NSF NCR-89-03429; NAG5-557...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722392994
Category :
Languages : en
Pages : 42
Book Description
Several constructions for multi-level trellis codes are presented and many codes with better performance than previously known codes are found. These codes provide a flexible trade-off between coding gain, decoding complexity, and decoding delay. New multi-level trellis coded modulation schemes using generalized set partitioning methods are developed for Quadrature Amplitude Modulation (QAM) and Phase Shift Keying (PSK) signal sets. New rotationally invariant multi-level trellis codes which can be combined with differential encoding to resolve phase ambiguity are presented. Costello, Daniel J., Jr. and Wu, Jiantian and Lin, Shu Unspecified Center NSF NCR-89-03429; NAG5-557...
Trellis phase codes for power and bandwidth efficient digital communication
Introduction to Digital Communication Systems
Author: Krzysztof Wesolowski
Publisher: John Wiley & Sons
ISBN: 9780470695197
Category : Technology & Engineering
Languages : en
Pages : 578
Book Description
Combining theoretical knowledge and practical applications, this advanced-level textbook covers the most important aspects of contemporary digital communication systems. Introduction to Digital Communication Systems focuses on the rules of functioning digital communication system blocks, starting with the performance limits set by the information theory. Drawing on information relating to turbo codes and LDPC codes, the text presents the basic methods of error correction and detection, followed by baseband transmission methods, and single- and multi-carrier digital modulations. The basic properties of several physical communication channels used in digital communication systems are explained, showing the transmission and reception methods on channels suffering from intersymbol interference. The text also describes the most recent developments in the transmission techniques specific to wireless communications used both in wireline and wireless systems. The case studies are a unique feature of this book, illustrating elements of the theory developed in each chapter. Introduction to Digital Communication Systems provides a concise approach to digital communications, with practical examples and problems to supplement the text. There is also a companion website featuring an instructors’ solutions manual and presentation slides to aid understanding. Offers theoretical and practical knowledge in a self-contained textbook on digital communications Explains basic rules of recent achievements in digital communication systems such as MIMO, turbo codes, LDPC codes, OFDMA, SC-FDMA Provides problems at the end of each chapter with an instructors’ solutions manual on the companion website Includes case studies and representative communication system examples such as DVB-S, GSM, UMTS, 3GPP-LTE
Publisher: John Wiley & Sons
ISBN: 9780470695197
Category : Technology & Engineering
Languages : en
Pages : 578
Book Description
Combining theoretical knowledge and practical applications, this advanced-level textbook covers the most important aspects of contemporary digital communication systems. Introduction to Digital Communication Systems focuses on the rules of functioning digital communication system blocks, starting with the performance limits set by the information theory. Drawing on information relating to turbo codes and LDPC codes, the text presents the basic methods of error correction and detection, followed by baseband transmission methods, and single- and multi-carrier digital modulations. The basic properties of several physical communication channels used in digital communication systems are explained, showing the transmission and reception methods on channels suffering from intersymbol interference. The text also describes the most recent developments in the transmission techniques specific to wireless communications used both in wireline and wireless systems. The case studies are a unique feature of this book, illustrating elements of the theory developed in each chapter. Introduction to Digital Communication Systems provides a concise approach to digital communications, with practical examples and problems to supplement the text. There is also a companion website featuring an instructors’ solutions manual and presentation slides to aid understanding. Offers theoretical and practical knowledge in a self-contained textbook on digital communications Explains basic rules of recent achievements in digital communication systems such as MIMO, turbo codes, LDPC codes, OFDMA, SC-FDMA Provides problems at the end of each chapter with an instructors’ solutions manual on the companion website Includes case studies and representative communication system examples such as DVB-S, GSM, UMTS, 3GPP-LTE
Multiple Symbol Trellis Coding of Full Response Continuous Phase Modulation for Coherent and Non-coherent Detection
Nonlinear Multi-h Phase Codes for Continuous Phase Frequency Shifting Keying Modulation
Author: Mao, Tom Rongqiang
Publisher:
ISBN:
Category : Phase distortion (Electronics)
Languages : en
Pages : 384
Book Description
Publisher:
ISBN:
Category : Phase distortion (Electronics)
Languages : en
Pages : 384
Book Description
The Froehlich/Kent Encyclopedia of Telecommunications
Author: Fritz E. Froehlich
Publisher: CRC Press
ISBN: 1000447820
Category : Computers
Languages : en
Pages : 562
Book Description
"The only continuing source that helps users analyze, plan, design, evaluate, and manage integrated telecommunications networks, systems, and services, The Froehlich/Kent Encyclopedia of Telecommunications presents both basic and technologically advanced knowledge in the field. An ideal reference source for both newcomers as well as seasoned specialists, the Encyclopedia covers seven key areas--Terminals and Interfaces; Transmission; Switching, Routing, and Flow Control; Networks and Network Control; Communications Software and Protocols; Network and system Management; and Components and Processes."
Publisher: CRC Press
ISBN: 1000447820
Category : Computers
Languages : en
Pages : 562
Book Description
"The only continuing source that helps users analyze, plan, design, evaluate, and manage integrated telecommunications networks, systems, and services, The Froehlich/Kent Encyclopedia of Telecommunications presents both basic and technologically advanced knowledge in the field. An ideal reference source for both newcomers as well as seasoned specialists, the Encyclopedia covers seven key areas--Terminals and Interfaces; Transmission; Switching, Routing, and Flow Control; Networks and Network Control; Communications Software and Protocols; Network and system Management; and Components and Processes."
Contemporary Coding Techniques and Applications for Mobile Communications
Author: Onur Osman
Publisher: CRC Press
ISBN: 1420054627
Category : Computers
Languages : en
Pages : 362
Book Description
Modern error control coding methods based on turbo coding have essentially solved the problem of reliable data communications over noisy channels. Contemporary Coding Techniques and Applications for Mobile Communications provides a clear, comprehensive, and practical grounding on the subject matter, examining the fundamentals, theory, and ap
Publisher: CRC Press
ISBN: 1420054627
Category : Computers
Languages : en
Pages : 362
Book Description
Modern error control coding methods based on turbo coding have essentially solved the problem of reliable data communications over noisy channels. Contemporary Coding Techniques and Applications for Mobile Communications provides a clear, comprehensive, and practical grounding on the subject matter, examining the fundamentals, theory, and ap
Coded Modulation Systems
Author: John B. Anderson
Publisher: Springer Science & Business Media
ISBN: 0306472791
Category : Computers
Languages : en
Pages : 494
Book Description
The attitudes behind coded modulation mark a paradigm shift that occurred after 1975, which led to a major awakening of interest in coding theory and practice."--BOOK JACKET.
Publisher: Springer Science & Business Media
ISBN: 0306472791
Category : Computers
Languages : en
Pages : 494
Book Description
The attitudes behind coded modulation mark a paradigm shift that occurred after 1975, which led to a major awakening of interest in coding theory and practice."--BOOK JACKET.