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Xiong F. Digital Modulation Techniques

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Xiong F. Digital Modulation Techniques
Издательство Artech House, 2006, -1039 pp.
The second edition.
Digital modulation techniques are essential to many digital communication systems, whether it is a telephone system, a mobile cellular communication system, or a satellite communication system. In the past 20 years or so, research and development in digital modulation techniques have been very active and have yielded many promising results. However, these results are scattered all over the literature. As a result, engineers and students in this field usually have difficulty locating particular techniques for applications or for research topics.
This book provides readers with complete, up-to-date information on all modulation techniques in digital communication systems. There exist numerous textbooks of digital communications, each of them containing one or more chapters of digital modulation techniques covering either certain types of modulation, or only principles of the techniques. There are also a few books specializing in certain modulations. This book presents principles and applications information on all currently used digital modulation techniques, as well as new techniques now being developed. For each modulation scheme, the following topics are covered: historical background, operation principles, symbol and bit error performance (power efficiency), spectral characteristic (bandwidth efficiency), block diagrams of modulator, demodulator, carrier recovery (if any), clock recovery, comparison with other schemes, and applications. After we fully understand the modulations and their performance in the AWGN channel, we will discuss their performance in multipath-fading channels.
This second edition of Digital Modulation Techniques is an expanded version of the first edition. In recent years, multicarrier modulation (MCM), in particular, orthogonal frequency division multiplexing (OFDM) has been getting a lot of attention, due to its advantages in multipath fading channels in comparison with traditional single-carrier modulations. Many research results about OFDM have been published. Some systems have adopted OFDM. In order to help readers understand this emerging technique, a comprehensive coverage of OFDM is the major addition to this second edition of the book. About 280 pages in five chapters are devoted to OFDM. All aspects of OFDM, from basics to advanced topics such as peak-to-average power ratio reduction, synchronization, channel estimation and equalization, are described in detail. Another major change is the addition of a chapter about amplitude shift keying (ASK). There was a section of ASK in Chapter 8 (quadrature amplitude modulation (QAM)) of the first edition. To enhance the coverage of ASK, it was separated from QAM and expanded to include noncoherent M-ary ASK and other contents. The old Chapter 10 was about performance of modulations in fading channels. This chapter is now Chapter 11, which is greatly expanded to address remedial measures against channel impairments, including channel estimation, equalization, and diversity reception techniques. Other minor revisions include an added section in Chapter 2 for pulse time modulation (PTM), which is most suitable for optical communications; and newly published accurate bit error rate (BER) formulas for Gray-coded M-ary PSK in Chapter 4, and for QAM in Chapter 9_. Chapter 1 is also enhanced by adding a modulation comparison figure for classical modulations. Some typographic errors in the first edition are also corrected. Finally, an appendix of mathematical tables is added.
Baseband Modulation (Line Codes)
Frequency Shift Keying
Phase Shift Keying
Minimum Shift Keying and MSK-Type Modulations
Continuous Phase Modulation
Multi-h Continuous Phase Modulation
Amplitude Shift Keying
Quadrature Amplitude Modulation
Nonconstant-Envelope Bandwidth-Efficient Modulations
Modulations in Fading Channels, Equalization, and Diversity
Orthogonal Frequency Division Multiplexing
Peak-to-Average Power Ratio Reduction
Synchronization for OFDM
OFDM in Multipath Fading Channels
Wavelet OFDM and MASK-OFDM
A Power Spectral Densities of Signals
B Detection of Signals
C Mathematical Tables
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