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A reference for professionals and a text for graduate courses in modulation and detection theory in digital communications.Written by internationally recognized leaders in the field, this volume presents complete, comprehensive, and modern coverage of the theory and practice of signal design and detection in digital communications. Based on the authors' vast industrial experience, it explores the basic as well as the state-of-art developments in both modulation and detection. Contains material found only in the most recent journal literature_e.g., the reliability and communication efficiency associated with various modulation-demodulation and optimum signal detection techniques; coding-decoding techniques to improve end-to-end system reliability and efficiency; the ultimate reliability and efficiency (thermodynamic limit) achievable by a digital communication system; the communication reliability and efficiency of various practical modulation-coding and demodulation-decoding techniques; and coded modulation. Key Features Presents both theory and practice throughout as motivations for each other. Explores the reliability and communication efficiency associated with various modulation-demodulation and optimum signal detection techniques available to the system engineer. Introduces coding-decoding techniques to improve end-to-end system reliability and efficiency.presents the ultimate reliability and efficiency (thermodynamic limit) achievable by a digital communication system_e.g., Shannon's channel capacity theorem. Considers the implications of this theorem with respect to energy, mass, temperature and information_from a physics perspective. Asseses the communication reliability and efficiency of various practical modulation-coding and demodulation-decoding techniques_RS, BCH, convolutional and concatenated codes and maximum likelihood and Viterbi decoding_from an end-to-end system engineering perspective. Discusses coded modulation_e.g., combined coding and modulation techniques to achieve efficient and reliable communication. Table of Contents Introduction to Telecommunications Power Spectral Density of Digital Modulations Scalar and Vector Communications Over the Discrete Memoryless Channel Coherent Communication with Waveforms Noncoherent Communication with Waveforms Partially Coherent Communication with Waveforms Differentially Coherent Communication with Waveforms Double Differentially Coherent Communication with Waveforms Commu-nication over Bandlimited Channels Demodulation and Detection of Other Digital Modulations Coded Digital Communications Block-Coded Digital Communications Convolutional-Coded Digital Communications