Multi-carrier techniques for broadband wireless communications [[electronic resource] ] : a signal processing perspective / / Man-On Pun, Michele Morelli, C.-C. Jay Kuo

• Record Nr.: UNINA9910784756503321
• Autore: Pun Man-On
• Pubbl/distr/stampa: London, : Imperial College Press; Hackensack, NJ, : Distributed by World Scientific, c2007
• ISBN: 1-281-86766-7; 9786611867669; 1-86094-947-9
• Descrizione fisica: 1 online resource (272 p.)
• Collana: Communications and signal processing ; ; v. 3
• Altri autori (Persone): MorelliMichele; KuoC.-C. Jay (Chung-Chieh Jay)
• Disciplina: 621.38212; 621.384
• Soggetti: Orthogonal frequency division multiplexing; Wireless communication systems
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. 243-254) and index.
• Nota di contenuto: Preface; Contents; 1. Introduction; 1.1 Aim of this book; 1.2 Evolution of wireless communications; 1.2.1 Pioneering era of wireless communications; 1.2.2 First generation (1G) cellular systems; 1.2.3 Second generation (2G) cellular systems; 1.2.4 Third generation (3G) cellular systems; 1.2.5 Wireless local and personal area networks; 1.2.6 Wireless metropolitan area networks; 1.2.7 Next generation wireless broadband systems; 1.3 Historical notes on multicarrier transmissions; 1.4 Outline of this book; 2. Fundamentals of OFDM/OFDMA Systems; 2.1 Mobile channel modeling; 2.1.1 Parameters of wireless channels2.1.1.1 Path loss; 2.1.1.2 Excess delay; 2.1.1.3 Power delay profile; 2.1.1.4 Root-mean-squared (RMS) delay spread; 2.1.1.5 Coherence bandwidth; 2.1.1.6 Doppler spread; 2.1.1.7 Coherence time; 2.1.2 Categorization of fading channels; 2.1.2.1 Frequency-nonselective and slowly-fading channels; 2.1.2.2 Frequency-selective fading channels; 2.1.2.3 Time-selective fading channels; 2.1.2.4 Frequency- and time-selective fading channels; 2.2 Conventional methods for channel fading mitigation; 2.2.1 Time-selective fading; 2.2.2 Frequency-selective fading; 2.3 OFDM systems2.3.1 System architecture; 2.3.2 Discrete-time model of an OFDM system; 2.4 Spectral efficiency; 2.5 Strengths and drawbacks of OFDM; 2.6 OFDM-based multiple-access schemes; 2.7 Channel coding and interleaving; 3. Time and Frequency Synchronization; 3.1 Sensitivity to timing and frequency errors; 3.1.1 Effect of timing offset; 3.1.2 Effect of frequency offset; 3.2 Synchronization for downlink transmissions; 3.2.1 Timing acquisition; 3.2.2 Fine timing tracking; 3.2.3 Frequency acquisition; 3.2.4 Frequency tracking; 3.3 Synchronization for uplink transmissions; 3.3.1 Uplink signal model with synchronization errors3.3.2 Timing and frequency estimation for systems with subband CAS; 3.3.3 Timing and frequency estimation for systems with interleaved CAS; 3.3.4 Frequency estimation for systems with generalized CAS; 3.4 Timing and frequency o®set compensation in uplink trans- missions; 3.4.1 Timing and frequency compensation with subband CAS; 3.4.2 Frequency compensation through interference cancellation; 3.4.3 Frequency compensation through linear multiuser detection; 3.4.4 Performance of frequency correction schemes; 4. Channel Estimation and Equalization4.1 Channel equalization; 4.2 Pilot-aided channel estimation; 4.2.1 Scattered pilot patterns; 4.2.2 Pilot distances in time and frequency directions; 4.2.3 Pilot-aided channel estimation; 4.2.4 2D Wiener interpolation; 4.2.5 Cascaded 1D interpolation lters; 4.2.5.1 Cascaded 1D Wiener interpolators; 4.2.5.2 Cascaded 1D polynomial-based interpolators; 4.2.5.3 LS-based interpolation in frequency domain; 4.3 Advanced techniques for blind and semi-blind channel estimation; 4.3.1 Subspace-based methods; 4.3.2 EM-based channel estimation; 4.3.2.1 Likelihood function for joint data detection and channel estimation
• Sommario/riassunto: Multi-Carrier Techniques for Broadband Wireless Communications provides an accessible introduction to OFDM-based systems from a signal processing perspective. The first part presents a concise treatment of some fundamental concepts related to wireless communications and multicarrier systems, while the second offers a comprehensive survey of recent developments on a variety of critical design issues. These include synchronization techniques, channel estimation methods, adaptive resource allocation and practical schemes for reducing the peak-to-average power ratio of the transmitted waveform.