Wireless Local Loops Theory and Applications 1st Edition by Peter Stavroulakis ISBN 9780471498469 0471498467

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ISBN 10:   0471498467

ISBN 13: 9780471498469

Author: Peter Stavroulakis

The demand for greater flexibility both in bandwidth allocation as well as in geographical terms has opened up the new application area of Wireless Local Loops (WLL). WLL provide a telephone system where subscribers are connected to the Public Switches Telephone Network (PSTN) using radio signals rather than copper wire for part or all of the connection between the subscriber and the switch.
Divided into two parts, theoretical aspects and applications, Wireless Local Loops brings together contributions from leading world experts in this increasingly important section of wireless communication systems.

– Covers all aspects of WLL from design to implementation.
– Explains the theoretical aspects of WLL including areas such as propagation, modulation, coding, channel modelling and also traffic engineering issues.
– Presents the applications areas of WLL including interference, prototype designs of various access protocols, a mobility manager, a remote management systems and the provision of multimedia services.

By providing a self-contained treatment of the progressively important area Wireless Local Loops will have immense appeal to practising engineers, researchers and graduate students needing to understand the bakground to WLL and its major role in the provision of new services.

Table of contents: 

Part I Theoretical Aspects
1 Introduction to WLL: Digital Service Technologies
1.1 Background
1.2 Advantages of Wireless Systems
1.3 WLL Service Requirements
1.4 Generic WLL System Architecture
1.5 WLL System Technologies
1.6 Comparison of WLL Services
Appendix A Fixed versus Mobile Cellular Systems
Appendix B CDMA versus TDMA in WLL
References

2 Propagation Models for Wireless Local Loops
2.1 Introduction
2.2 WLL System Configuration
2.3 Delay Spread in WLL Environments
2.4 Components of Overall Path Loss
2.5 Path Loss Models
2.6 Comparison of Propagation Models
References

3 Wireless Local Loop Networks Capacity Enhancement by Space Division Multiple Access
3.1 Introduction
3.2 Background
3.3 Technologies for the First Generation of Wireless Local Loop
3.4 Multiple Access Techniques
3.5 Simulation Description
3.6 Performance Results
References

4 Combined Trellis Coded Quantization/Modulation over a Wireless Local Loop Environment
4.1 Introduction
4.2 Fundamentals of Trellis Coded Modulation
4.3 General Aspects of Combined Trellis Coded Quantization Modulation Schemes
4.4 Basic Model
4.5 An Example: 4-State 8-Psk Combined Trellis Coded Quantization/Modulation
References

5 Low Sequency W-CDMA Codes Lead to More Economic WLL and Infostation Terminals
5.1 Introduction
5.2 Code Selection and Generation
5.3 Infostation Transmitter
5.4 Terminal Receiver
5.5 Simplified Signal Processing for a Low Data Terminal
5.6 Noise Analysis and Processing Gain
References

6 Wide-band Wireless Outdoor to Indoor Local Loop Channel Models for Urban and Suburban Environments at 2 GHz
6.1 Introduction
6.2 Experimental Procedure
6.3 Data Processing
6.4 Channel Parameters
6.5 Channel Model
References

7 Traffic Considerations in Comparing Access Techniques for WLL
7.1 Introduction
7.2 Fixed Wireless Access Networks
7.3 Multiple Access Technologies
7.4 CDMA Capacity Analysis
7.5 Comparison of TDMA and CDMA Results
List of Abbreviations
References

8 Traffic Based Dynamic Channel Allocation Schemes for WLL
8.1 Introduction
8.2 Access on Allocation Technologies
8.3 FWA Network Scenarios
8.4 Simulations Results of DCA in FWA Networks
List of Abbreviations
References

9 WLL as an Interferer
9.1 Introduction
9.2 System Overview of WLL as an Interferer
9.3 Architecture of WLL as an Interferer
9.4 Problem Definition
9.5 Description of the Systems
9.6 Spectral Characteristics of Signals
9.7 Interference Effects Analysis
9.8 Study Case
References

Part II Applications
10 Development of a Prototype of the Broadband Radio Access Integrated Network
10.1 Introduction
10.2 System Overview
10.3 MAC Protocol: RS-ISMA
10.4 BRAIN Indoor LAN Prototype
References

11 PBX based Mobility Manager for WLL
11.1 Introduction
11.2 A Computer-controlled PBX Architecture
11.3 Mobility Management for PBX
11.4 Registration Procedures
11.5 Call Termination
11.6 Performance Issues
References

12 Remote Management and Upgrade in a Wireless Local Loop System
12.1 Introduction
12.2 Wireless Local Loop Application Overview
12.3 Remote Upgrade of Fixed Subscriber Units
12.4 Event Logging for Remote Management
References

13 Current and Future Services Using Wireless Local Loop (WLL) Systems
13.1 Introduction
13.2 WLL System Architecture
13.3 WLL Service Requirements
13.4 Services with Currently Available Systems
13.5 Further Considerations for Multimedia Services

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Tags: Peter Stavroulakis, Wireless Local, Theory and Applications