Description

The aim of this book is to regale the reader with an overview of some of the technologies peculiar to wireless communications. I have addressed what I believe are important aspects of the subject. The material is tailored for technical personnel working in the field of wireless, who are seeking additional information on the technologies in this area. The practicing engineer will find the text to contain useful information concerning the design of wireless systems. The material presented is also suitable for senior undergraduate or graduate students majoring in communications. The prerequisite knowledge is a first course in communication theory, some exposure to probability and random noise theory, and a nodding acquaintance with matrices.

Wireless communications have consistently exceeded the capacity of available technology. The exponential increase in voice service (mobile in particular), together with the ever-growing demand for data services, have pushed current systems beyond their capacities. There is therefore a continuous pursuit to satisfy these burgeoning demands and for advancing the technological frontiers.

The coverage in this book is broad, encompassing subjects from signal formats to smart antennas, with the latter developing in the continuous pursuit of more capacity. The material is not rigorous, but is reader-friendly with a tutorial slant. The text is complemented with numerous figures to make the presentation more lucid.

Table of Contents

In Pursuit of Bandwidth Efficiencies for Wireless Terrestrial and Satellite Communications.

Introduction.

Bandwidth-Efficient Modulation Techniques.

Introduction.

Bandwidth and Power Efficiency Plane.

Conclusions.

References.

Higher Order Modulation Methods.

Introduction.

Signal State Space Diagrams.

Performance Representations.

Conclusions.

Glossary of Terms.

References.

Dynamics of Linear and Continuous Phase Modulation Methods in Digital Communications.

Introduction.

Linear Modulation.

Continuous Phase Modulation.

Phase Trellises in CPM.

GMSK Modulation.

Tamed Frequency Modulation (TFM).

Signal Orthogonality.

Conclusions.

References.

Error Control Coding.

Introduction.

Code Families.

Code Performance.

Block Coding.

Convolutional Encoding.

Concatenated Coding.

Interleaving.

Coding Break-through.

Conclusions.

References.

Trellis Coded Modulation (Codulation).

Introduction.

The Theory.

Attributes of Trellis Coded Modulation.

Practical Systems.

Performance Degraders.

Conclusions.

Glossary of Terms.

References.

Spread Spectrum Communication Systems.

Introduction.

Spread Spectrum Techniques.

Code Generation.

Codes for Spread Spectrum Multiplexing.

Spread Spectrum Interference Analysis.

The Multipath Phenomenon.

Purely Random or Pseudo-Random— What's the Difference?

Conclusions.

Glossary of Terms.

References.

Terrestrial-based Wireless Communications.

Introduction.

Frequency Bands of Operation.

Interference Analysis.

Increasing Capacity.

Cellular Standards.

Personal Communications Service.

Conclusions.

References.

The Butler Matrix.

Introduction.

Planar Array Beams.

Multiple Volumetric Beams.

Butler Array Application.

Conclusions.

References.

Sidelobe Cancellers in Smart Antenna Applications.

Introduction.

Single Interferer Sidelobe Canceller.

Multiple Interferers.

Conclusions.

References.

A Look at Switched-Beam Smart Antennas.

Introduction.

Trunking Efficiency.

Smart Antennas.

Configurations.

Conclusions.

References.

Deterministic Signals, Random Noise, and Coherent Noise (Pseudo) Combining in an Array Antenna.

Introduction.

Coherent Signals.

Coherent Noise.

An Adaptive Array in a Quiescent Signal Field.

Adaptive Arrays in Cellular Communications.

Introduction.

The Theory.

Simulation Results.

Conclusions.

References.

Summary Smart Antennas in Cellular Communications.

Introduction.

Adaptive Array Genre.

Where Are Smart Antennas Going?

Conclusions.

Appecdices

A. Gaussian Low-Pass Filter.
B. Scattering Matrix of the Quadrature Hybrid.
C. Example of Trunking and Erlang Tables.
D. Glossary of Terms.

Index.