WIRELESS COMMUNICATIONS

书名：WIRELESS COMMUNICATIONS （Second Edition） 作者：Andreas F. Molisch, Fellow, IEEE University of Southern California, USA Part I INTRODUCTION 1 Applications and Requirements of Wireless Services 1.1 History 1.1.1 How It All Started 1.1.2 The First Systems 1.1.3 Analog Cellular Systems 1.1.4 GSM and the Worldwide Cellular Revolution 1.1.5 New Wireless Systems and the Burst of the Bubble 7 1.1.6 Wireless Revival 8 1.2 Types of Services 8 1.2.1 Broadcast 8 1.2.2 Paging 9 1.2.3 Cellular Telephony 10 1.2.4 Trunking Radio 12 1.2.5 Cordless Telephony 12 1.2.6 Wireless Local Area Networks 14 1.2.7 Personal Area Networks 14 1.2.8 Fixed Wireless Access 14 1.2.9 Ad hoc Networks and Sensor Networks 15 1.2.10 Satellite Cellular Communications 16 1.3 Requirements for the Services 16 1.3.1 Data Rate 16 1.3.2 Range and Number of Users 17 1.3.3 Mobility 18 1.3.4 Energy Consumption 19 1.3.5 Use of Spectrum 20 1.3.6 Direction of Transmission 21 1.3.7 Service Quality 21 1.4 Economic and Social Aspects 22 1.4.1 Economic Requirements for Building Wireless Communications Systems 22 1.4.2 The Market for Wireless Communications 23 1.4.3 Behavioral Impact 24 2 Technical Challenges of Wireless Communications 27 2.1 Multipath Propagation 27 2.1.1 Fading 27 2.1.2 Intersymbol Interference 31 2.2 Spectrum Limitations 32 2.2.1 Assigned Frequencies 32 2.2.2 Frequency Reuse in Regulated Spectrum 34 2.2.3 Frequency Reuse in Unregulated Spectrum 35 2.3 Limited Energy 35 2.4 User Mobility 36 3 Noise- and Interference-Limited Systems 37 3.1 Introduction 37 3.2 Noise-Limited Systems 37 3.2.1 Link Budget 40 3.3 Interference-Limited Systems 43 Part II WIRELESS PROPAGATION CHANNELS 45 4 Propagation Mechanisms 47 4.1 Free Space Attenuation 47 4.2 Reflection and Transmission 49 4.2.1 Snell’s Law 49 4.2.2 Reflection and Transmission for Layered Dielectric Structures 51 4.2.3 The d−4 Power Law 53 4.3 Diffraction 54 4.3.1 Diffraction by a Single Screen or Wedge 55 4.3.2 Diffraction by Multi