Wireless Local Loops

Peter Stavroulakis is the editor of Wireless Local Loops: Theory and Applications, published by Wiley.

"Covering both theoretical aspects and practical applications...this book considers every stem from design to implementation." (SciTech Book News, Vol. 26, No. 2, June 2002)

• List of Contributors xiPreface xvAcknowledgement xviiPart I Theoretical aspects 11 Introduction to WLL: Digital Service Technologies 31.1 Background 31.2 Advantages of Wireless Systems 51.3 WLL Service Requirements 61.4 Generic WLL System Architecture 91.5 WLL System Technologies 141.6 Comparison of WLL Services 29Appendix A Fixed versus Mobile Cellular Systems 30Appendix B CDMA versus TDMA in WLL 31References 332 Propagation Models for Wireless Local Loops 352.1 Introduction 352.2 WLL System Configuration 362.3 Delay Spread in WLL Environments 372.4 Components of Overall Path Loss 392.5 Path Loss Models 432.6 Comparison of Propagation Models 55References 552 Propagation Models for Wireless Local Loops 352.1 Introduction 352.2 WLL System Configuration 362.3 Delay Spread in WLL Environments 372.4 Components of Overall Path Loss 392.5 Path Loss Models 432.6 Comparison of Propagation Models 55References 553 Wireless Local Loop Networks Capacity Enhancement by Space Division Multiple Access 573.1 Introduction 573.2 Background 573.3 Technologies for the First Generation of Wireless Local Loop 633.4 Multiple Access Techniques 703.5 Simulation Description 753.6 Performance Results 76References 774 Combined Trellis Coded Quantization/Modulation over a Wireless Local Loop Environment 814.1 Introduction 814.2 Fundamentals of Trellis Coded Modulation 814.3 General Aspects of Combined Trellis Coded Quantization Modulation Schemes 834.4 Basic Model 884.5 An Example: 4-State 8-Psk Combined Trellis Coded Quantization/Modulation 95References 995 Low Sequency W-CDMA Codes Lead to More Economic WLL and Infostation Terminals 1015.1 Introduction 1015.2 Code Selection and Generation 1045.3 Infostation Transmitter 1065.4 Terminal Receiver 1075.5 Simplified Signal Processing for a Low Data Terminal 1085.6 Noise Analysis and Processing Gain 110References 1126 Wide-band Wireless Outdoor to Indoor Local Loop Channel Models for Urban and Suburban Environments at 2 GHz 1156.1 Introduction 1156.2 Experimental Procedure 1166.3 Data Processing 1206.4 Channel Parameters 1236.5 Channel Model 131References 1397 Traffic Considerations in Comparing Access Techniques for WLL 1417.1 Introduction 1417.2 Fixed Wireless Access Networks 1427.3 Multiple Access Technologies 1447.4 CDMA Capacity Analysis 1467.5 Comparison of TDMA and CDMA Results 159List of Abbreviations 161References 1618 Traffic Based Dynamic Channel Allocation Schemes for WLL 1638.1 Introduction 1638.2 Access on Allocation Technologies 1638.3 FWA Network Scenarios 1688.4 Simulations Results of DCA in FWA Networks 178List of Abbreviations 189References 1909 WLL as an Interferer 1919.1 Introduction 1919.2 System Overview of WLL as an Interferer 1949.3 Architecture of WLL as an Interferer 2019.4 Problem Definition 2019.5 Description of the Systems 2029.6 Spectral Characteristics of Signals 2109.7 Interference Effects Analysis 2149.8 Study Case 217References 228Part II Applications 23110 Development of a Prototype of the Broadband Radio Access Integrated Network 23310.1 Introduction 23310.2 System Overview 23410.3 MAC Protocol: RS-ISMA 23610.4 BRAIN Indoor LAN Prototype 240References 24511 PBX based Mobility Manager for WLL 24711.1 Introduction 24711.2 A Computer-controlled PBX Architecture 24711.3 Mobility Management for PBX 24811.4 Registration Procedures 25211.5 Call Termination 25511.6 Performance Issues 258References 26012 Remote Management and Upgrade in a Wireless Local Loop System 26112.1 Introduction 26112.2 Wireless Local Loop Application Overview 26212.3 Remote Upgrade of Fixed Subscriber Units 26312.4 Event Logging for Remote Management 266References 27013 Current and Future Services Using Wireless Local Loop (WLL) Systems 27113.1 Introduction 27113.2 WLL System Architecture 27213.3 WLL Service Requirements 27413.4 Services with Currently Available Systems 27613.5 Further Considerations for Multimedia Services 280References 281Index 283