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CHAPTER 1 Overview of Wireless Networks 1

1.1 Introduction 2

1.2 Different Generations of Wireless Networks 12

1.3 Structure of the Book 21

Appendix 1A Backbone Networks for Wireless Access 26

Appendix 1B Summaryof Important Standards Organizations 33

Questions 34

PART ONE PRINCIPLES OF AIR-INTERFACE DESIGN 37

CHAPTER 2 Characteristics of the Wireless Medium 39

2.1 Introduction 40

2.2 Radio Propagation Mechanisms 44

2.3 Path-Loss Modeling and Signal Coverage 46

2.4 Effects of Multipath and Doppler 58

2.5 Channel Measurement and Modeling Techniques 68

2.6 Simulation of the Radio Channel 71

Appendix 2A What is dB? 76

Appendix2B Wired Media 77

Appendix 2C Path Loss Models 79

Appendix 2D Wideband Channel Models 79

Questions 80

Problems 81

CHAPTER 3 Physical Layer Alternatives for Wireless Networks 85

3.1 Introduction 86

3.2 Applied Wireless Transmission Techniques 91

3.3 Short Distance Baseband Transmission 92

3.4 UWB Pulse Transmission 94

3.5 Carrier Modulated Transmission 96

3.6 Traditional Digital Cellular Transmission 96

3.7 Broadband Modems for Higher Speeds 108

3.8 Spread Spectrum Transmissions 111

3.9 High-Speed Modems for Spread Spectrum Technology 118

3.10 Diversity and Smart Receiving Techniques 120

3.11 Comparison of Modulation Schemes 133

3.12 Coding Techniques for Wireless Communications 137

3.13 A Brief Overview of Software Radio 142

Appendix 3A Performance of Communication Systems 143

Appendix 3B Coding and Correlation 150

Questions 155

Problems 156

CHAPTER 4 Wireless Medium Access Alternatives 159

4.1 Introduction 160

4.2 Fixed-Assignment Access for Voice-Oriented Networks 161

4.3 Random Access for Data-Oriented Networks 179

4.4 Integration of Voice and Data Traffic 201

Questions 214

Problems 217

PART TWO PRINCIPLES OF WIRELESS NETWORK OPERATION 221

CHAPTER 5 Network Planning 223

5.1 Introduction 224

5.2 Wireless Network Topologies 225

5.3 Cellular Topology 229

5.4 Cell Fundamentals 234

5.5 Signal-to-Interference Ratio Calculation 237

5.6 Capacity Expansion Techniques 240

5.7 Network Planning for CDMA Systems 260

Questions 263

Problems 263

CHAPTER 6 Wireless Network Operation 265

6.1 Introduction 266

6.2 Mobility Management 266

6.3 Radio Resources and Power Management 284

6.4 Security in Wireless Networks 297

Appendix 6A The Diffie-Hellman(DH)Key Exchange Protocol 311

Appendix 6B Nonrepudiation and Digital Signatures 312

Questions 313

Problems 313

PART THREE WIRELESS WANS 317

CHAPTER 7 GSM and TDMA Technology 319

7.1 Introduction 320

7.2 What Is GSM? 321

7.3 Mechanisms to Support a Mobile Environment 327

7.4 Communications in the Infrastructure 332

Questions 346

Problems 346

CHAPTER 8 CDMA Technology,IS-95,and IMT-2000 349

8.1 Introduction 350

8.2 Reference Architecture for North American Systems 351

8.3 What Is CDMA? 355

8.4 IMT-2000 371

Questions 376

Problems 376

CHAPTER 9 Mobile Data Networks 379

9.1 Introduction 380

9.2 The Data-Oriented CDPD Network 383

9.3 GPRS and Higher Data Rates 394

9.4 Short Messaging Service in GSM 405

9.5 Mobile Application Protocols 407

Questions 410

Problems 411

PART FOUR LOCAL BROADBAND AND AD HOC NETWORKS 413

CHAPTER 10 Introduction to Wireless LANs 415

10.1 Introduction 416

10.2 Historical Overview of the LAN Industry 416

10.3 Evolution of the WLAN Industry 420

10.4 New Interest from Military and Service Providers 426

10.5 A New Explosion of Market and Technology 430

10.6 Wireless Home Networking 431

Questions 444

Problems 445

CHAPTER 11 IEEE 802.11 WLANs 447

11.2 What Is IEEE 802.11? 448

11.1 Introduction 448

11.3 The PHY Layer 452

11.4 MAC Sublayer 460

11.5 MAC Management Sublayer 466

Questions 470

Problems 471

CHAPTER 12 Wireless ATM and HIPERLAN 473

12.1 Introduction 474

12.2 What Is Wireless ATM? 475

12.3 What Is HIPERLAN? 481

12.4 HIPERLAN-2 485

Questions 496

Problems 497

CHAPTER 13 Ad Hoc Networking and WPAN 499

13.1 Introduction 500

13.2 What Is IEEE 802.15 WPAN? 500

13.3 What Is HomeRF? 501

13.4 What Is Bluetooth? 503

13.5 Interference between Bluetooth and 802.11 520

Questions 530

Problems 531

CHAPTER 14 Wireless Geolocation Systems 533

14.1 Introduction 534

14.2 What Is Wireless Geolocation? 534

14.3 Wireless Geolocation System Architecture 536

14.4 Technologies for Wireless Geolocation 538

14.5 Geolocation Standards for E-911 Services 546

14.6 Performance Measures for Geolocation Systems 547

Questions 550

Problems 551

Acronyms and Abbreviations 553

References 561

Index 573

About the Authors 583