Constellation Shaping, Nonlinear Precoding, and Trellis Coding for Voiceband Telephone Channel Modems
This book is an excellent reference for those working in the broad fields of communication theory, information theory, and modem design. It is essential for researchers in modulation and coding for voiceband telephone line modems; signal constellation design; nonlinear precoding for modems; and trellis coding.\ The author presents the theory behind the new modulation and coding techniques included in ITU-T Recommendation V.34. Topics discussed include signal constellation shaping by shell...
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Tretter (U. of Maryland) presents a history of the developments in signal constellation design, nonlinear pre-equalization, and trellis coding made by ITU-T Study Group XVII during its meetings to create a recommendation for a state-of-the-art voice band telephone channel modem. Topics addressed include signal constellation shaping by shell mapping, nonlinear precoding, four-dimensional trellis codes, and fast equalizer training by using periodic sequences and FFT methods. Several approaches that were considered by not accepted are also presented. A good reference for those working in the broad fields of communication theory, information theory, and modem design; also suitable as a text for an advanced graduate level course in modulation and coding. Annotation (c)2003 Book News, Inc., Portland, OR
Preface1Basics of Lattice Theory12Performance Measures for Multidimensional Constellations253Principles of Convolutional and Trellis Codes614Trellis Shaping915Nonlinear Precoding Methods to Remove Intersymbol Interference1176Trellis Precoding1337Mapping Data to Channel Symbol Frames by a Modulus Encoder1478Constellation Shaping by Shell Mapping1579The Four Dimensional Constellation Used by ITU-T V.34 Modems18710The Combined Precoding and Trellis Coding Scheme for V.3420511Fast Equalizer Adjustment by Using a Periodic Training Sequence227References255Index261
