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Full Description
This book provides a comprehensive coverage of reconfigurable intelligent surface (RIS) based wireless communications by covering all the technology stages from working principles, theories and algorithms, system architectures, real-world implementations, and programming platforms through performance measurements and system testing. Metasurfaces for Wireless Communications: Designs and Implementations serves as a must-be read for everything related to the use of RIS in wireless networks.
Authored by three experts in the field, the book is organized into five in-depth and well-designed chapters. The first chapter discusses the fundamentals of metasurfaces for wireless communications as well as the related evolution and requirements of RIS in 6G. The second chapter is devoted to the modeling and analyses of RIS for wireless communications by including electromagnetic field modeling and theoretical analyses of both large- and small-scale channel models. In Chapter 3, the authors mainly address properties' characterizations and system design of metasurface devices. Chapter 4 examines relay and system implementations of RIS for wireless communications through basic system models, key design aspects, and system simulations and architectures. Chapter 5 discusses the standardization of RIS-aided wireless communications by providing an overview of the relay technologies, field trials, and roadmaps in 3GPP standardizations.
This book serves not only as a comprehensive reference for professional engineers, researchers, manufacturers, network operators, software developers, service providers, and regulatory bodies aiming at the development, standardization, deployment, and applications of B5G and 6G mobile communications, but also as a textbook for graduate students in circuits, signal processing, wireless communications, information theory, microwave technology, and antenna and propagation.
Contents
Preface
About the Authors
Chapter 1: Fundamentals of Metasurfaces for Wireless Communications
Introduction of Metamaterial and Metasurface
Evolutions of Reconfigurable Intelligent Surface (RIS)-Related Wireless Technologies
Multi-Antenna Technology
Coordinated Multi-Point Processing (CoMP)
Micro/Pico/femto Cells
Relay
System Performance Requirements for 6G
Application Scenarios
Key Performance Indicators
Basics about Performance Evaluation Methodologies
Chapter 2: Modeling of a RIS for Wireless Communications
Overview of Channel Models for Mobile Communications
Large-Scale Fading Models
Small-Scale Fading Models
Spatial Channel Models
Simplified Model for Spatial Channels
Antenna Models and Configurations
Large-Scale Channel Models for a RIS
Free-Space Pathloss Models for a RIS
More Realistic Large-Scale Fading Models for RIS
Small-Scale Channel Models for RIS
Electromagnetic Field Modeling of Metasurface Structures
Chapter 3: Designs of Metasurface Devices
Basic Design Principles of Metasurface Devices
Typical Metamaterials and Devices
Basic Structures of Metamaterial Devices
Design Principles of Metasurface
Active RIS Elements
Simulations and Measurements of Metasurface Devices
Electromagnetic Simulations
Performance Testing of Actual Devices
Control of Metasurface Devices
Non-Ideal Characteristics
Control Mechanisms of Tunable Metasurface
Codebook Designs of the RIS
Uniqueness of Codebook Design for the RIS
Examples of the RIS Codebook Designs
Near-Field Communications
Near-Field Basics
Polar Coordinates for the Near-Field
Beam Squinting in Wideband Operation and Solutions
Metasurface-Based Beamforming at the Base Station
Chapter 4: System Implementations of a RIS for Wireless Communications
Basic System Models and Performances for Metasurface-Based Relay
System Models
Theoretical Performance Analysis
Simplified Model and Performance Analysis
Beamforming Techniques for a RIS
Beam-Based Techniques
Random-Sampling-Based Technique
RIS Channel Estimation and Feedback for Small-Scale Fading
Direction Finding Via Time-Space Coding
Link-Level Simulations
Simulation Parameters and Methodology
Preliminary Link-Level Simulation Results
System-Level Simulations
System Configurations and Simulation
Preliminary Simulation Results
Chapter 5: Standardization and Trials of RIS-Aided Wireless Communications
Overview and Key Features of Relay Technology in Standardization
Potential Deployment Scenarios
Basic Categories of an LTE Relay
Type 1 Relay
Type 2 Relay
Brief Discussion on an LTE Full-Dimensional MIMO
Field Trials
RIS Trial in Nanjing
RIS Trial in Shenzhen
Standardization Road Map for the RIS
Lessons Learned from the LTE Era
Different Modes of Operation for the RIS
3GPP Release 18 Network-Controlled Repeater
Comparison Between Network-Controlled Repeater and RIS
Future Road Map for RIS Standardization
Index
