Tag: Coded

Free Download Adaptive Wireless Transceivers: Turbo-Coded, Turbo-Equalized and Space-Time Coded TDMA, CDMA and OFDM Systems By L. Hanzo, C. H. Wong, M. S. Yee(auth.)
2002 | 734 Pages | ISBN: 0470846895 | PDF | 11 MB
Adaptive Wireless Transceivers provides the reader with a broad overview of near-instantaneously adaptive transceivers in the context of TDMA, CDMA and OFDM systems. The adaptive transceivers examined employ powerful turbo codecs, turbo equalisers and space-time codecs, equipping the reader with a future-proof technological road map. It demonstrates that adaptive transceivers are capable of mitigating the channel quality fluctuations of the wireless channel as a lower-complexity alternative to space-time coding. By contrast, if the higher complexity of multiple transmitters and multiple receiver-assisted systems is deemed acceptable, the advantages of adaptability erode. Provides an in-depth introduction to channel equalisers and Kalman filtering and discusses the associated complexity versus performance trade-offs Introduces wideband near-instantaneously adaptive transceivers and studies their performance both with and without turbo channel coding Describes how to optimise adaptive modulation mode switching and highlights a range of practical considerations Introduces neural network based channel equalisers and discusses Radial Basis Function (RBF) assisted equalisers embedded into adaptive modems supported by turbo channel coding and turbo channel equalisation Employs the above adaptive principles also in the context of CDMA and OFDM transceivers and discusses the pros and cons of space-time coding versus adaptive modulation Researchers, advanced students and practising development engineers working in wireless communications will all find this valuable text an informative read.Content: Chapter 1 Prologue (pages 1-17): Chapter 2 Introduction To Equalizers (pages 19-44): Chapter 3 Adaptive Equalization (pages 45-79): Chapter 4 Adaptive Modulation (pages 81-122): Chapter 5 Turbo-Coded and Turbo-Equalised Wideband Adaptive Modulation (pages 123-190): Chapter 6 Adaptive Modulation Mode Switching Optimization (pages 191-255): B. J. Choi and L. HanzoChapter 7 Practical Considerations of Wideband AQAM (pages 257-296): Chapter 8 Neural Network Based Equalization (pages 297-383): Chapter 9 RBF?Equalized Adaptive Modulation (pages 385-415): Chapter 10 RBF Equalization Using Turbo Codes (pages 417-452): Chapter 11 RBF Turbo Equalization (pages 453-493): Chapter 12 Burst?by?Burst Adaptive Multiuser Detection CDMA (pages 495-534): E. L. Kuan and L. HanzoChapter 13 Adaptive Multicarrier Modulation (pages 535-587): T. Keller and L. HanzoChapter 14 Space?Time Trellis Coding versus Adaptive Modulation (pages 589-637): T. H. Liew and L. HanzoChapter 15 Conclusions and Suggestions for Further Research (pages 639-651):

Free Download Coded Modulation Systems by John B. Anderson , Arne Svensson
English | PDF | 2002 | 494 Pages | ISBN : 0306472791 | 24.1 MB
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.