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Digital Front-End in Wireless Communications and Broadcasting

Book Description

Covering everything from signal processing algorithms to integrated circuit design, this complete guide to digital front-end is invaluable for professional engineers and researchers in the fields of signal processing, wireless communication and circuit design. Showing how theory is translated into practical technology, it covers all the relevant standards and gives readers the ideal design methodology to manage a rapidly increasing range of applications. Step-by-step information for designing practical systems is provided, with a systematic presentation of theory, principles, algorithms, standards and implementation. Design trade-offs are also included, as are practical implementation examples from real-world systems. A broad range of topics is covered, including digital pre-distortion (DPD), digital up-conversion (DUC), digital down-conversion (DDC) and DC-offset calibration. Other important areas discussed are peak-to-average power ratio (PAPR) reduction, crest factor reduction (CFR), pulse-shaping, image rejection, digital mixing, delay/gain/imbalance compensation, error correction, noise-shaping, numerical controlled oscillator (NCO) and various diversity methods.

Table of Contents

  1. Coverpage
  2. Halftitle page
  3. Title page
  4. Copyright page
  5. Contents
  6. List of contributors
  7. Preface
  8. Part I Introduction to digital front-end
    1. 1 Introduction to wireless communications and digital broadcasting
      1. 1.1 Evolution of mobile cellular networks
      2. 1.2 Evolution of broadcast network
      3. 1.3 Key technologies
      4. 1.4 Conclusions
      5. References
    2. 2 Basic principles and protocols of digital wireless communications
      1. 2.1 Introduction
      2. 2.2 Digital processing, transmission, and reception
      3. 2.3 The WCDMA/OFDMA physical layer protocols
      4. 2.4 General principles of MIMO systems
      5. 2.5 Space-time and space-frequency transmission over MIMO networks
      6. 2.6 Summary
      7. References
    3. 3 Digital front-end and system overview in wireless communication
      1. 3.1 Introduction
      2. 3.2 New objectives and technologies in modern wireless communication systems
      3. 3.3 Other emerging standards beyond 3G
      4. 3.4 DFE introductory design considerations
      5. 3.5 Conclusions
      6. List of abbreviations (Chapter 3)
      7. References
    4. 4 System overview and front-end technologies in digital broadcasting
      1. 4.1 Introduction
      2. 4.2 Broadcast mobile multimedia services
      3. 4.3 Common technologies for digital mobile broadcast services
      4. 4.4 Most relevant standards for digital broadcasting to mobile devices
      5. 4.5 Technology aspects of DFE in transmitters
      6. 4.6 Conclusions
      7. List of abbreviations (Chapter 4)
      8. References
    5. 5 Digital front-end for multiple standards and multimode compatibility
      1. 5.1 Introduction
      2. 5.2 Receiver architectures
      3. 5.3 Analog-to-digital converters
      4. 5.4 Preselect filters and LNA interface for multiband receivers
      5. 5.5 Power amplifier architectures in multimode-multiband transmitters
      6. 5.6 Conclusions
      7. List of abbreviations (Chapter 5)
      8. References
  9. Part II DPD and CFR
    1. 6 General principles and design overview of digital predistortion
      1. 6.1 Introduction
      2. 6.2 Power amplifier nonlinearity
      3. 6.3 Digital predistortion overview
      4. 6.4 Digital predistortion basics
      5. 6.5 Advanced topics in DPD
      6. 6.6 Concluding comments
      7. References
    2. 7 Power amplifier nonlinear modeling for digital predistortion
      1. 7.1 Introduction
      2. 7.2 Principles of predistortion linearization
      3. 7.3 Power amplifier behavioral models for digital predistortion
      4. 7.4 Discussion
      5. References
    3. 8 Look-up table based digital predistortion schemes and implementation
      1. 8.1 Introduction
      2. 8.2 Look-up table based schemes
      3. 8.3 FPGA implementation of an LUT-based DPD
      4. 8.4 Discussion
      5. References
    4. 9 Digital predistortion and its combination with crest factor reduction
      1. 9.1 Principles of operation
      2. 9.2 DPD models
      3. 9.3 Model extraction structures
      4. 9.4 Bandwidth and sampling rate requirements
      5. 9.5 System characterization procedures
      6. 9.6 Implementation considerations
      7. 9.7 Combination with crest factor reduction
      8. 9.8 Conclusions and future outlook
      9. References
    5. 10 Adaptive digital baseband predistortion: design and implementation
      1. 10.1 Introduction
      2. 10.2 Power amplifier nonlinearity behavior and modeling
      3. 10.3 Digital predistortion modeling
      4. 10.4 Predistortion implementation challenges
      5. 10.5 Conclusions
      6. References
    6. 11 Crest factor reduction techniques
      1. 11.1 Introduction
      2. 11.2 Multi-carrier communication systems
      3. 11.3 CF reduction using clipping plus filtering
      4. 11.4 Conclusion
      5. References
  10. Part III DUC, DDC, ADC, DAC, and NCO
    1. 12 Digital down-conversion and up-conversion: theory and implementation
      1. 12.1 Introduction
      2. 12.2 Multi-rate, multi-stage, and filter-banks in DDC and DUC
      3. 12.3 Mixing and combining for multi-channels and multi-carriers
      4. 12.4 Hardware implementation for digital down-conversion
      5. 12.5 Hardware implementation for digital up-conversion
      6. 12.6 Summary
      7. References
    2. 13 A/D and D/A data conversion for wireless communications transceivers
      1. 13.1 A/D conversion in RF receiver
      2. 13.2 ADC for heterodyne and low-IF receiver
      3. 13.3 Digital down-conversion
      4. 13.4 Implementation of ADCs in communications receivers
      5. 13.5 D/A conversion in RF transmitter
      6. 13.6 Digital up-conversion
      7. 13.7 Implementation of DACs in communications transmitters
      8. 13.8 Summary
      9. References
    3. 14 Advanced quadrature sigma-delta modulator designs for A/D interface
      1. 14.1 Sigma-delta basics
      2. 14.2 Considerations on further modulator concepts
      3. 14.3 Advanced modulators
      4. 14.4 Nonidealities in quadrature sigma-delta modulators
      5. 14.5 Examples on complex multiband transfer function design
      6. 14.6 Conclusion
      7. References
    4. 15 Digital suppression of A/D interface nonlinearities
      1. 15.1 Introduction to ADC nonlinearities
      2. 15.2 Look-up table
      3. 15.3 Dithering
      4. 15.4 Model inversion
      5. 15.5 Adaptive interference cancellation
      6. 15.6 Clipping compensation using interpolation
      7. 15.7 Performance examples of online post-processing methods
      8. 15.8 Conclusions
      9. References
  11. Part IV Digital calibration, imbalance compensation, and error corrections
    1. 16 Digital compensation and calibration of I/Q gain and phase imbalances
      1. 16.1 Introduction
      2. 16.2 I/Q modulation and direct-conversion radio architecture
      3. 16.3 I/Q imbalance signal modeling
      4. 16.4 Compensation and calibration methods
      5. 16.5 Design and testing examples
      6. 16.6 Conclusions
      7. References
    2. 17 Joint digital predistortion of I/Q modulator and power amplifier impairments
      1. 17.1 Introduction
      2. 17.2 Effects of IQM impairments on PA intermodulation products and predistorter estimation
      3. 17.3 Joint PA and IQM predistortion
      4. 17.4 Predistorter parameter estimation
      5. 17.5 Simulation and measurement examples
      6. 17.6 Conclusions
      7. References
    3. 18 Diversity and error compensation in OFDM transceivers: principles and implementation
      1. 18.1 Introduction
      2. 18.2 OFDM transceivers: principles and design
      3. 18.3 Adaptive antenna array and diversity
      4. 18.4 Error detection and compensation
      5. 18.5 Hardware implementation and system integration
      6. 18.6 Conclusions
      7. References
    4. 19 Front-end architectures and impairment corrections in multimode and multi-antenna systems
      1. 19.1 Introduction
      2. 19.2 State of the art of multi-* receivers
      3. 19.3 Mixed analog–digital front-end architecture for multiband simultaneous reception
      4. 19.4 Some methods for simplifying analog parts of multi-antenna front-ends
      5. 19.5 Front-ends combining multiband and multi-antenna capabilities
      6. 19.6 Conclusions
      7. References
  12. Part V Circuits and system integration in digital front-end
    1. 20 Integration and interface of digital front-end with analog front-end
      1. 20.1 Introduction
      2. 20.2 Mixed signal transceiver architectures
      3. 20.3 Digital–analog system integration and interfaces
      4. 20.4 Conclusions and discussions
      5. References
    2. 21 Circuits and systems for digital front-ends to support multiple wireless standards
      1. 21.1 Introduction
      2. 21.2 Major Functions of the DFE
      3. 21.3 Determination of DFE specifications
      4. 21.4 Design of DFE to support WCDMA and GGE
      5. 21.5 Considerations to support LTE
      6. 21.6 Conclusions
      7. References
    3. 22 Programming models and implementation platforms for software defined radio configuration
      1. 22.1 Introduction
      2. 22.2 Programming environment and tools for SDR
      3. 22.3 An existing radio virtual machine implementation
      4. 22.4 Conclusion
      5. References
    4. 23 Programmable discrete-time integrated receiver front-ends
      1. 23.1 Background
      2. 23.2 Theory
      3. 23.3 Zero intermediate frequency receivers
      4. 23.4 Low intermediate frequency receivers
      5. 23.5 Case study of a super-heterodyne AM/FM radio receiver
      6. 23.6 Summary and conclusions
      7. 23.7 Acknowledgements
      8. References
    5. 24 Multi-port front-end and transceivers for V-band multi-gigabit/s communication systems
      1. 24.1 Introduction
      2. 24.2 Multi-port interferometer theory
      3. 24.3 Multi-port V-band practical implementation, modeling, and analysis
      4. 24.4 Proposed transceiver architectures
      5. 24.5 Advanced system simulations
      6. 24.6 Conclusion
      7. References
    6. 25 Cross-layer design and digital front-end for cognitive wireless link
      1. 25.1 Introduction to flexible cognitive wireless link
      2. 25.2 A high-level optimization for SDR: multimode relaying
      3. 25.3 Implementation of the PHY sensing block: example of TV white space sensing
      4. 25.4 Conclusion
      5. References
  13. Index