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Emergency Communication Technology and Systems:Public Protection and Disaster Relief(PPDR)

Emergency Communication Technology and Systems:Public Protection and Disaster Relief(PPDR)
Kaven Ward

When earthquakes, floods, or mine disasters sever every conventional link, how do rescuers stay connected? This book maps the full engineering landscape of emergency communication — satellite, HF, digital trunking, ad hoc networks, space-air-ground integration, and through-the-earth systems — then looks ahead to AI, integrated sensing, and 6G. Essential reading for communication engineers.

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About

About the Book

Emergency Communication Technology and Systems is a comprehensive technical guide to the principles, standards, and engineering practice behind modern emergency communication.

When disaster strikes, conventional communication networks are often the first casualty — power fails, infrastructure is damaged, and normal channels go silent exactly when they're needed most. This book systematically covers the technologies designed to keep critical information flowing under the worst possible conditions: satellite communication, HF/shortwave systems, digital trunking, public mobile network emergency support, ad hoc networking, space-air-ground integration, wireless through-the-earth communication, and multi-network convergence.

Beyond the core technology chapters, the book examines how emergency communication systems are architected — from requirements analysis through layered system design — and looks ahead to how emerging technologies like integrated sensing and communication, large language models, network digital twins, reconfigurable intelligent surfaces, terahertz communication, and semantic communication are beginning to reshape the field.

Each chapter combines underlying physical and protocol-level principles with the relevant international standards (ITU-R, ITU-T, 3GPP, IETF, ETSI, ATIS) and real engineering constraints, making the book equally useful as a reference for practicing engineers and as a teaching text for graduate and upper-level undergraduate courses in communication engineering and emergency management.

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About the Author

Kaven Ward

Kaven Ward is a researcher at a technology research center, holding a Ph.D. in Engineering. With extensive experience in communication networks and computer technology, he has worked across wireless systems, network architecture, and emerging information technologies, with particular attention to the design, standardization, and engineering deployment of resilient communication systems. Kaven Wang's research interests include emergency and public safety communications, digital trunking systems, and the integration of terrestrial, satellite, and next-generation wireless networks. He writes with an emphasis on connecting technical principles to real-world engineering practice.

Contents

Table of Contents

Preface

Chapter 1 Introduction

  1. 1.1 Concepts Related to Emergency Communication
  2. 1.2 Classification of Emergency Communication
  3. 1.3 Emergency Communication Standards System
  4. 1.4 Current Status of Emergency Communication Development
  5. Chapter References

Chapter 2: Emergency Communication System Requirements

  1. 2.1 Emergency Communication System Objectives and Requirements
  2. 2.2 Typical Emergency Communication Application Scenarios and Service Requirements
  3. 2.3 Emergency Communication User Requirements Analysis
  4. References

Chapter 3: Emergency Communication System Architecture

  1. 3.1 Emergency Communication Command Reference Model
  2. 3.2 Layered Reference Model of Emergency Communication Systems
  3. 3.3 Emergency Communication Networking Modes
  4. 3.4 Heterogeneous Network Interoperability
  5. 3.5 Communication Support Emergency Plans and Drills
  6. References

Chapter 4: Satellite Emergency Communication

  1. 4.1 Overview of Satellite Communication
  2. 4.2 Typical Satellite Emergency Communication Systems
  3. 4.3 International Search and Rescue Satellite System (Cospas-Sarsat)
  4. 4.4 Key Ground Equipment for Satellite Emergency Communication
  5. References

Chapter 5: Shortwave Emergency Communication

  1. 5.1 Overview of HF Communication
  2. 5.2 Basic Principles of HF Communication
  3. 5.3 Key Technologies in HF Communication
  4. 5.4 HF Emergency Communication Equipment
  5. 5.5 HF Emergency Communication Networking
  6. 5.6 Typical Application Scenarios of HF Communication
  7. 5.7 Development Trends
  8. References

Chapter 6: Digital Trunking Emergency Communication

  1. 6.1 Overview of Trunking Communication
  2. 6.2 Narrowband Digital Trunking Communication Standards
  3. 6.3 TETRA Public Safety Network Architecture and International Deployment Practice
  4. 6.4 DMR System Architecture and Industry Emergency Deployment Practice
  5. 6.5 Mission-Critical Communications (MCX)
  6. References

Chapter 7 Public Mobile Network Emergency Communication

  1. 7.1 Overview
  2. 7.2 Network Congestion Mechanisms and Priority Access
  3. 7.3 Public Warning Systems: Alert Dissemination via Mobile Networks
  4. 7.4 Resilience and Rapid Recovery of Public Mobile Networks
  5. 7.5 5G Evolution of Emergency Communication in Public Mobile Networks
  6. Chapter References

Chapter 8: Ad Hoc Network-Based Emergency Communication

  1. 8.1 Overview
  2. 8.2 Mobile Ad Hoc Networks
  3. 8.3 Delay Tolerant Networks
  4. 8.4 Wireless Mesh Networks
  5. 8.5 Wireless Sensor Networks
  6. 8.6 Interoperability with Existing Emergency Communication Networks
  7. 8.7 Technical Challenges and Development Trends
  8. References

Chapter 9: Space-Air-Ground Integrated Emergency Communication

  1. 9.1 Overview
  2. 9.2 Space-Air-Ground Integrated Network Architecture
  3. 9.3 Air-Based Communication Platforms
  4. 9.4 Space-Air-Ground Collaborative Communication Mechanisms
  5. 9.5 Typical Deployment Schemes
  6. 9.6 Technical Challenges and Development Trends
  7. References

Chapter 10: Wireless Through-the-Earth Communication

  1. 10.1 Overview
  2. 10.2 Effects of Strata Media on Wireless Signal Propagation
  3. 10.3 Mainstream TTE Communication Methods
  4. 10.4 TTE Communication System Design
  5. References

Chapter 11: Multi-Network Convergence for Emergency Communication

  1. 11.1 Design Principles and Technical Architecture for Comprehensive Networking
  2. 11.2 Heterogeneous Network Interconnection Mechanisms
  3. 11.3 Unified Cross-Network Command and Dispatch System
  4. 11.4 Scenario-Driven Comprehensive Networking Methods
  5. 11.5 Technical Evolution Directions for Multi-Network Convergence
  6. References

Chapter 12: Frontier Technologies and Development Trends

  1. 12.1 AI-Enabled Emergency Communication
  2. 12.2 Integrated Sensing and Communication (ISAC)
  3. 12.3 New Transmission Technologies
  4. 12.4 Semantic Communication
  5. 12.5 6G and the Evolution of Emergency Communication: Outlook
  6. References

Appendix: Glossary of Terms (Abbreviations)

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