Adaptive wireless transceivers : turbo-coded, turbo-equalized and space-time coded TDMA, CDMA, and OFDM systems / / L. Hanzo, C.H. Wong, M.S. Yee.

• Autore: Hanzo Lajos <1952->
• Pubblicazione: [Hoboken, New Jersey] : , : Wiley, 2002; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2002]
• Edizione: 1st ed.
• Descrizione fisica: 1 PDF (xiv, 737 pages) : illustrations
• Disciplina: 621.3845
• Soggetto topico: Radio - Transmitter-receivers; Modulation (Electronics); Wireless communication systems; Adaptive filters; Adaptive antennas
• Altri autori: WongC. H YeeM. S
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references (p. 687-712) and index.
• Nota di contenuto: 1 Prologue -- 1.1 Motivation of the Book -- 1.2 Adaptation Principles -- 1.3 Channel Quality Metrics -- 1.4 Transceiver Parameter Adaptation -- 1.5 Milestones in Adaptive Modulation History -- 1.6 Outline of the book -- I Near-instantaneously Adaptive Modulation and Filtering Based Equalisation -- 2 Introduction To Equalizers -- 2.1 Coherent Demodulation of Square-QAM -- 2.2 Intersymbol Interference -- 2.3 Basic Equalizer Theory -- 2.4 Signal to Noise Ratio Loss of the DFE -- 2.5 Equalization in Multi-level Modems -- 2.6 Review and Discussion -- 3 Adaptive Equalization -- 3.1 Derivation of the Recursive Kalman Algorithm -- 3.2 Application of the Kalman Algorithm -- 3.3 Complexity Study -- 3.4 Adaptive Equalization in Multilevel Modems -- 3.5 Review and Discussion -- 4 Adaptive Modulation -- 4.1 Adaptive Modulation for Narrow-band Fading Channels -- 4.2 Power Control Assisted Adaptive Modulation -- 4.3 Adaptive Modulation and Equalization in a Wideband Environment -- 4.4 Review and Discussion -- 5 Turbo-Coded and Turbo-Equalised Adaptive Modulation -- 5.1 Turbo Coding -- 5.2 System Parameters -- 5.3 Turbo Block Coding Performance of the Fixed QAM Modes -- 5.4 Fixed Coding Rate, Fixed Interleaver Size Turbo Coded AQAM -- 5.5 Fixed Coding Rate. Variable Interleaver Size Turbo Coded AQAM -- 5.6 Blind Modulation Detection -- 5.7 Variable Coding Rate Turbo Block Coded Adaptive Modulation -- 5.8 Comparisons of the Turbo Block Coded AQAM Schemes -- 5.9 Turbo Convolutional Coded AQAM Schemes -- 5.10 Turbo Equalization -- 5.11 Burst-by-Burst Adaptive Wideband Coded Modulation -- 5.12 Review and Discussion -- 6 Adaptive Modulation Mode Switching Optimization -- 6.l Introduction -- 6.2 Increasing the Average Transmit Power as a Fading Counter-Measure -- 6.3 System Description -- 6.4 Optimum Switching Levels -- 6.5 Results and Discussions -- 6.6 Review and Discussion -- 7 Practical Considerations of Wideband AQAM -- 7.1 Impact of Error Propagation. ; 7.2 Channel Quality Estimation Latency -- 7.3 Effect of CO-channel Interference on AQAM -- 7.4 Review and Discussion -- II Near-instantaneously Adaptive Modulation and Neural Network Based Equalisation -- 8 Neural Network Based Equalization -- 8.l Discrete Time Model for Channels Exhibiting Intersymbol Interference -- 8.2 Equalization as a Classification Problem -- 8.3 Introduction to Neural Networks -- 8.4 Equalization Using Neural Networks -- 8.5 Multilayer Perceptron Based Equaliser -- 8.6 Polynomial Perceptron Based Equaliser -- 8.7 Radial Basis Function Networks -- 8.8 K-means Clustering Algorithm -- 8.9 Radial Basis Function Network Based Equalisers -- 8.10 Scalar Noise-free Channel Output States -- 8.11 Decision Feedback Assisted Radial Basis Function Network Equaliser.49 -- 8.12 Simulation Results -- 8.13 Review and Discussion -- 9 RBF-Equalized Adaptive Modulation -- 9.l Background to Adaptive Modulation in a Narrowband Fading Channel -- 9.2 Background on Adaptive Modulation in a Wideband Fading Channel -- 9.3 Brief Overview of Part I of the Book -- 9.4 Joint Adaptive Modulation and RBF Based Equalization -- 9.5 Performance of the AQAM RBF DFE Scheme -- 9.6 Review and Discussion -- 10 RBF Equalization Using nrbo Codes -- 10.1 Introduction to Turbo Codes -- 10.2 Jacobian Logarithmic RBF Equalizer -- 10.3 System Overview -- 10.4 Turbo-coded RBF-equalized M-QAM Performance -- 10.5 Channel Quality Measure -- 10.6 Turbo Coding and RBF Equalizer Assisted AQAM -- 10.7 Review and Discussion -- 11 RBF Turbo Equalization -- 11.1 Introduction to Turbo equalization -- 11.2 RBF Assisted Turbo equalization -- 11.3 Comparison of the RBF and MAP Equaliser -- 11.4 Comparison of the Jacobian RBF and Log-MAP Equaliser -- 11.5 RBF Turbo Equaliser Performance -- 11.6 Reduced-complexity RBF Assisted Turbo equalization -- 11.7 In-phase/Quadrature-phase Turbo equalization -- 11.8 Turbo Equalized Convolutional and Space Time Trellis Coding. ; 11.9 Review and Discussion -- III Near-Instantaneously Adaptive CDMA and Adaptive Space-Time Coded OFDM -- 12 Burst-by-Burst Adaptive Multiuser Detection CDMA -- 12.1 Motivation -- 12.2 Multiuser Detection -- 12.3 Multiuser Equaliser Concepts -- 12.4 Adaptive CDMA Schemes -- 12.5 Burst-by-Burst AQAM/CDMA -- 12.6 Review and Discussion -- 13 Adaptive Multicarrier Modulation -- 13.1 Introduction -- 13.2 Orthogonal Frequency Division Multiplexing -- 13.3 OFDM Transmission over Frequency Selective Channel -- 13.4 OFDM Performance with Frequency Errors and Timing Errors -- 13.5 Synchronization Algorithms -- 13.6 Adaptive OFDM -- 13.7 Pre-Equalization -- 13.8 Review and Discussion -- 14 Space-Time Coding versus Adaptive Modulation -- 14.1 Introduction -- 14.2 Space-Time Trellis Codes -- 14.3 Space-Time CodedTransmissionOver Wideband Channels -- 14.4 Simulation Results -- 14.5 Space-Time Coded Adaptive Modulation for OFDM -- 14.6 Review and Discussion -- 15 Conclusions and Suggestions for Further Research -- 15.1 Book Summary and Conclusions -- 15.2 Suggestions for Future Research -- 15.3 Closing Remarks -- A Appendices -- A.1 Turbo Decoding and Equalization Algorithms -- A.2 Least Mean Square Algorithm -- A.3 Minimal Feedforward Order of the RBF DFE [Proof] -- A.4 BER Analysis of Type-I Star-QAM -- A.5 Two-Dimensional Rake Receiver -- A.6 Mode Specific Average BEP of Adaptive Modulation -- Bibliography -- Index -- Author Index.
• Sommario/riassunto: 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 modulationResearchers, advanced students and practising development engineers working in wireless communications will all find this valuable text an informative read.
• Titolo autorizzato: Adaptive wireless transceivers
• ISBN: 1-280-55556-4; 9786610555567; 0-470-84776-X
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910142529803321
• Lo trovi qui: Univ. Federico II