In-Band Full-Duplex Wireless Systems Handbook

✍ Scribed by Kenneth E. Kolodziej

• Publisher: ARTECH HOUSE Incorporated
• Year: 2021
• Tongue: English
• Leaves: 363
• Category: Library

✦ Synopsis

Many wireless systems could benefit from the ability to transmit and receive on the same frequency at the same time, which is known as In-Band Full-Duplex (IBFD). This technology could lead to enhanced spectral efficiency for future wireless networks, such as fifth-generation New Radio (5G NR) and beyond, and could enable capabilities and applications that were previously considered impossible, such as IBFD with phased array systems. In this exciting new book, experts from industry, academic, and federal research institutions discuss the various approaches that can be taken to suppress the inherent self-interference that is generated in IBFD systems. Both static and adaptive techniques that span across the propagation, analog and digital domains are presented. Details and measured results that encompass high-isolation antenna designs, RF, and photonic cancellation as well as signal processing approaches, which include beamforming and linear/non-linear equalization are detailed. Throughout this book, state-of-the-art IBFD systems that utilize these technologies will be provided as practical examples for various applications. Expert IBFD perspectives from multiple research organizations and companies, which would provide readers with the most accurate state-of-the-art approaches. This is the first book that dives into both the techniques that make IBFD systems possible as well as several different applications that use IBFD technology.

✦ Table of Contents

In-Band Full-DuplexWireless Systems Handbook
Contents
Foreword
Preface
Chapter 1 In-Band Full-Duplex Overview
1.1 Introduction
1.2 System Overview
1.2.1 Transceiver Diagram
1.2.2 Self-Interference Cancellation Techniques
1.3 Literature Review
1.3.1 Publications
1.3.2 System Survey
1.4 Book Organization
1.5 Practical Considerations
1.6 Conclusion
1.6.1 Summary
1.6.2 Future Directions
References
Chapter 2
Antenna Subsystems
2.1 Introduction
2.2 Bistatic Antenna Subsystems
2.2.1 Introduction
2.2.2 Decoupling Techniques
2.2.3 Merits and Challenges
2.3 Monostatic Antenna Subsystems
2.3.1 Introduction
2.3.2 Antiphase Spiral
2.3.3 Sequentially Rotated Array Antennas
2.3.4 Circular Arrays
2.3.5 Balanced Feed Networks
2.3.6 Performance Comparison
2.4 Quasi-Monostatic Antenna Subsystems
2.4.1 Introduction
2.4.2 Single Reflector
2.4.3 Dual Reflector
2.5 Hybrid Antenna Subsystems
2.6 Practical Considerations
2.7 Conclusion
2.7.1 Summary
2.7.2 Future Directions
References
Chapter 3
Electrical Balance Duplexers
3.1 Introduction
3.2 Principles of Operation
3.2.1 Pre-Electronic Telephone
3.2.2 Tx-Rx Isolation
3.2.3 Tx and Rx Insertion Losses
3.3 Balancing Networks
3.3.1 Wideband Balancing
3.3.2 Passive Balancing Networks
3.3.3 Active Balancing Networks
3.3.4 Prototype and Measurement Results
3.4 Dynamic Adaptation
3.4.1 Environmental Interaction
3.4.2 Dynamic Simulations
3.4.3 Real-Time Adaptive Implementation
3.4.4 Measurement Environments
3.4.5 Results
3.5 Practical Considerations
3.6 Conclusion
3.6.1 Summary
3.6.2 Future Directions
References
Chapter 4 Nonmagnetic Circulators
4.1 Introduction
4.2 Nonmagnetic Nonreciprocal Circulators Based on Permittivity Modulation
4.2.1 Circulators Based on Parametric Modulation
4.2.2 Circulators Based on Angular Momentum Biasing
4.3 Nonmagnetic Nonreciprocal Circulators Based on Conductivity Modulation
4.3.1 Switched-Capacitor-Based Structures
4.3.2 Switched-Delay Structures
4.4 Practical Considerations
4.5 Conclusion
4.5.1 Summary
4.5.2 Future Directions
References
Chapter 5
Photonic-Based Antenna Interfaces
5.1 Introduction
5.2 Analog Photonic Front-End Cancellation Techniques
5.2.1 Counterpropagating Cancellation
5.2.2 Subtraction Cancellation
5.3 Practical Considerations
5.4 Conclusion
5.4.1 Summary
5.4.2 Future Directions
References
Chapter 6
Code-Based RF Filtering
6.1 Introduction
6.2 Code-Domain Principle
6.3 System-Level Discussion
6.3.1 Spectral Efficiency
6.3.2 Code-Domain Codes
6.3.3 Jammer and Noise Tolerance
6.3.4 Multipath Tolerance
6.4 CMOS Techniques for RF Code-Domain Rx Front Ends
6.4.1 Modulating N-Path Filters with PN Codes
6.4.2 Code-Selective Bandpass Filters
6.4.3 Code-Selective Notch Filters
6.4.4 LNA with CSF
6.5 CMOS Techniques for Tx Code-Domain Modulation and Spectral Shaping
6.5.1 High-Power, High-Modulation BW CMOS Switch Design
6.5.2 Spectral Shaping Approaches
6.6 Practical Considerations
6.7 Conclusion
6.7.1 Summary
6.7.2 Future Directions
References
Chapter 7
Photonic-Based RF Filtering
7.1 Introduction
7.2 Concept and Theory
7.3 Measured Data
7.4 Practical Considerations
7.5 Conclusion
7.5.1 Summary
7.5.2 Future Directions
References
Chapter 8
Time-Domain RF Cancellation
8.1 Introduction
8.2 Cancellation Objective
8.3 Time-Domain Approach
8.4 Design Considerations
8.4.1 Delay Spread
8.4.2 Instantaneous Bandwidth
8.5 RF Canceller Examples
8.5.1 A 4-Tap Design
8.5.2 An 80-Tap Design
8.6 Advanced Tuning Approaches
8.7 Practical Considerations
8.8 Conclusion
8.8.1 Summary
8.8.2 Future Directions
References
Chapter 9
Frequency-Domain RF Cancellation
9.1 Introduction
9.2 Integrated N-Path-Filter-Based Wideband RF SIC
9.2.1 Concept of Frequency-Domain Equalization
9.2.2 Integrated RF BPFs
9.3 A 0.8–1.4-GHz Rx with FDE-Based SIC
9.3.1 Integrated Two-Port N-Path Canceller Filter with Embedded Phase Shifting
9.3.2 Implementation and Measurement Results
9.4 A 0.5–2.5-GHz Rx with N-Path-Filter-Based SIC
9.4.1 Integrated Self-Adaptive Wideband Interference Cancellation
9.4.2 Implementation and Measurement Results
9.5 Design and Experimentation Using Frequency-Domain RF Cancellers
9.6 Practical Considerations
9.7 Conclusion
9.7.1 Summary
9.7.2 Future Directions
References
Chapter 10
Digitally-Assisted RF Cancellation
10.1 Introduction
10.2 Digitally-Assisted RF Cancellation with All-Digital Inputs
10.3 Digitally-Assisted RF Cancellation with Analog and Digital Inputs
10.3.1 Analog and Digital Inputs for All-Digital Taps
10.3.2 Analog and Digital Inputs for Jointly Designed Analog and Digital Taps
10.3.3 Analog and Digital Inputs for RF Vector Modulators
10.4 Practical Considerations
10.5 Conclusion
10.5.1 Summary
10.5.2 Future Directions
References
Chapter 11
Spline-Based Nonlinear Digital Cancellation
11.1 Introduction
11.2 Related Works
11.3 Analog Impairments
11.3.1 IQ Imbalance
11.3.2 Nonlinear Distortion
11.3.3 Quantization Noise
11.3.4 Phase Noise
11.4 Digital SI Modeling and Cancellation
11.4.1 Basic Transceiver Model
11.4.2 Polynomial-Based Signal Models
11.4.3 Hammerstein Spline-Based Signal Model
11.5 Measurement Results
11.6 Practical Considerations
11.7 Conclusion
11.7.1 Summary
11.7.2 Future Directions
References
Chapter 12
Reference-Based Nonlinear Digital Cancellation
12.1 Introduction
12.2 Robust In-Band Nonlinear Digital Cancellation
12.2.1 Overview of the Approach
12.2.2 A Practical View of Distortion
12.2.3 Digital Cancellation for STAR
12.2.4 Measured Performance
12.3 Practical Considerations
12.4 Conclusion
12.4.1 Summary
12.4.2 Future Directions
References
Chapter 13
Phased Array Systems
13.1 Introduction
13.2 Isolation Metrics for Phased Arrays
13.3 Signal Model for Phased Arrays
13.4 SI Mitigation in Phased Arrays
13.4.1 SIC
13.4.2 Spatial Cancellation with Beamforming
13.5 Practical Considerations
13.6 Conclusion
13.6.1 Summary
13.6.2 Future Directions
References
Chatper 14
MIMO Array Systems
14.1 Introduction
14.2 Challenges with Multi-Antenna Technologies
14.2.1 Power Handling
14.2.2 Canceller Complexity
14.3 Prior Art
14.4 Phased Arrays Based on SIC via Beamforming
14.4.1 System Considerations
14.4.2 RF SIC via Joint Tx and Rx Beamforming
14.4.3 Integrated Circuit Implementation
14.5 MIMO Arrays Based on Shared-Delay Cancellation
14.5.1 System Considerations
14.5.2 Integrated Circuit Implementation
14.6 Practical Considerations
14.7 Conclusion
14.7.1 Summary
14.7.2 Future Directions
References
Chapter 15
Photonic-Based Cancellation Systems
15.1 Introduction
15.2 Discrete MPCs
15.3 RF Performance Metrics
15.3.1 Link Loss
15.3.2 Noise Figure
15.4 Balanced MPCs
15.5 Integrated MPCs
15.6 Practical Considerations
15.7 Conclusion
15.7.1 Summary
15.7.2 Future Directions
References
Chapter 16
Backscatter Modulation Applications
16.1 Introduction
16.2 Antenna Scattering
16.2.1 General Theory
16.2.2 Thévenin Equivalent Circuit
16.3 Backscatter Modulation Communication Framework
16.3.1 Channel Model for ReflectFX Communication
16.3.2 Communication Forward Link
16.3.3 Communication Backscatter Link
16.4 ReflectFX Load Optimization
16.4.1 Parallel and Series Circuit Implementations
16.4.2 Mobile Received Power
16.4.3 Backscatter Transmission
16.4.4 Optimum Modulation Impedance
16.5 ReflectFX Performance Analysis
16.5.1 Transmit Power Normalization
16.5.2 Modulation-Impedance Design
16.5.3 Ergodic Capacity Evaluation
16.5.4 ReflectFX Versus Half-Duplex
16.5.5 ReflectFX Versus Conventional IBFD
16.6 Practical Considerations
16.7 Conclusion
16.7.1 Summary
16.7.2 Future Directions
References
Chapter 17
Military Applications
17.1 Introduction
17.2 Overview of Global Research
17.2.1 Prior Art Before 2017
17.2.2 Seminal Research in Finland
17.2.3 NATO Science and Technology Organization
17.2.4 Related Activities
17.3 System Concepts and Experimentation
17.3.1 Tactical Communications
17.3.2 Reception While Transmitting Jamming
17.3.3 Reception While Transmitting Tactical Communications
17.4 Practical Considerations
17.5 Conclusion
17.5.1 Summary
17.5.2 Future Directions
References
Acronyms and Abbreviations
About the Editor
About the Authors
Index