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Informationen zum Autor Volker Kühn is Assistant Professor, at the Department of Communications Engineering, University of Bremen, Germany. He completed his Ph.D. at the University of Paderborn, Germany (1994-1998). He has also undertaken consultation work for Siemens AG and Infineon Technologies, and is a member of the IEEE. Klappentext Wireless Communications over MIMO Channels covers both CDMA and multiple antenna systems as well as state-of-the-art channel coding concepts, a combination rarely found in other books on the subject. A multitude of numerical and simulation results are provided, illuminating many different aspects of the discussed techniques. Two specific examples of MIMO systems studied are Code Division Multiple Access (CDMA) and multiple antenna systems.An information theoretical analysis of these concepts illuminates ultimate limits and demonstrates their high potential. The use of multiple transmit antennas in order to improve the link reliability by diversity concepts (space-time coding) is described, along with Space Division Multiplexing (SDM) increasing the achievable data rate. A unified description using vector notations makes the similarity between CDMA and SDM systems obvious allowing the joint deployment of detection algorithms.* Besides a unified description using vector notations, detection algorithms are derived that make the similarity of both systems obvious.* Addresses the application of error control coding in mobile radio communications* The text and mathematical derivations are well supported by figures and numerical examples* For the example of a CDMA uplink, it is demonstrated that strong codes are an appropriate means to achieve high spectral efficiencies even in the presence of severe multi-user interference* Accompanying appendices include: basic derivations, tables of frequently used channel models, chain rules for entropy and information, data processing theorem, basics of linear algebra, Householder reflection and Givens rotation, and the LLL algorithm for lattice reductionThis book will be an essential resource for undergraduate and postgraduate students, scientists and engineers in the fields of advanced digital communications, digital signal processing, communication networks and information theory. Zusammenfassung Digital Communications over MIMO Channels: Applications to CDMA and Multiple Antenna Systems covers both, state-of-the-art channel coding concepts and CDMA and multiple antenna systems, rarely found in other books on the subject. Inhaltsverzeichnis Preface xi Acknowledgements xv List of Abbreviations xvii List of Symbols xxi 1 Introduction to Digital Communications 1 1.1 Basic SystemModel 1 1.1.1 Introduction 1 1.1.2 Multiple Access Techniques 3 1.1.3 Principle Structure of SISO Systems 5 1.2 Characteristics ofMobile Radio Channels 8 1.2.1 Equivalent Baseband Representation 8 1.2.2 Additive White Gaussian Noise 11 1.2.3 Frequency-Selective Time-Variant Fading 12 1.2.4 Systems with Multiple Inputs and Outputs 16 1.3 Signal Detection 18 1.3.1 Optimal Decision Criteria 18 1.3.2 Error Probability for AWGN Channel 20 1.3.3 Error and Outage Probability for Flat Fading Channels 22 1.3.4 Time-Discrete Matched Filter 25 1.4 Digital Linear Modulation 27 1.4.1 Introduction 27 1.4.2 Amplitude Shift Keying (ASK) 28 1.4.3 Quadrature Amplitude Modulation (QAM) 30 1.4.4 Phase Shift Keying (PSK) 33 1.5 Diversity 36 1.5.1 General Concept 36 1.5.2 MRC for Independent Diversity Branches 40 1.5.3 MRC for Correlated Diversity Branches 47 1.6 Summary 49 2 Information Theory 51 2.1 Basic Definitions 51 2.1.1 Information, Redundancy, and Entropy 51 2.1.2 Conditional, Joint and Mutual Information 5...
