Table of contents Editorial: First Quarter 2021 IEEE Communications Surveys and Tutorials A Survey on Modulation Techniques in Molecular Communication via Diffusion Design of Polar Codes in 5G New Radio Fifty Years of Noise Modeling and Mitigation in Power-Line Communications Satellite Communications in the New Space Era: A Survey and Future Challenges A Comprehensive Survey on Moving Networks A Survey of Routing Protocols for Underwater Wireless Sensor Networks Vehicular Visible Light Communications: A Survey Segment Routing: A Comprehensive Survey of Research Activities, Standardization Efforts, and Implementation Results Challenges and Solutions for Cellular Based V2X Communications Decentralized SDN Control Plane for a Distributed Cloud-Edge Infrastructure: A Survey A Survey of Physical-Layer Authentication in Wireless Communications Short-Range Audio Channels Security: Survey of Mechanisms, Applications, and Research Challenges The Security Reference Architecture for Blockchains: Toward a Standardized Model for Studying Vulnerabilities, Threats, and Defenses Potential Identity Resolution Systems for the Industrial Internet of Things: A Survey Video Caching, Analytics, and Delivery at the Wireless Edge: A Survey and Future Directions A Comprehensive Survey of the Tactile Internet: State-of-the-Art and Research Directions Resilient Machine Learning for Networked Cyber Physical Systems: A Survey for Machine Learning Security to Securing Machine Learning for CPS Enabling AI in Future Wireless Networks: A Data Life Cycle Perspective Toward Enabled Industrial Verticals in 5G: A Survey on MEC-Based Approaches to Provisioning and Flexibility Artificial Intelligence for Wireless Caching: Schemes, Performance, and Challenges Table of contents. 2020 Index IEEE Communications Surveys&Tutorials Vol. 22 Editorial: Fourth Quarter 2020 IEEE Communications Surveys and Tutorials. IEEE 802.11be Wi-Fi 7: New Challenges and Opportunities. Communication-Efficient Edge AI: Algorithms and Systems. A Survey of Rate-Optimal Power Domain NOMA With Enabling Technologies of Future Wireless Networks. MAC Protocols for Terahertz Communication: A Comprehensive Survey. Toward Smart Wireless Communications via Intelligent Reflecting Surfaces: A Contemporary Survey. Dynamic TDD Systems for 5G and Beyond: A Survey of Cross-Link Interference Mitigation. Architectural Design Alternatives Based on Cloud/Edge/Fog Computing for Connected Vehicles. Caching in Vehicular Named Data Networking: Architecture, Schemes and Future Directions. A Tutorial on NB-IoT Physical Layer Design. Collective Remote Attestation at the Internet of Things Scale: State-of-the-Art and Future Challenges. Edge Computing in Industrial Internet of Things: Architecture, Advances and Challenges. A Systematic Survey of Industrial Internet of Things Security: Requirements and Fog Computing Opportunities. Integration of Blockchain and Cloud of Things: Architecture, Applications and Challenges. Machine-Type Communication for Maritime Internet of Things: A Design. Distributed Control and Communication Strategies in Networked Microgrids. Indoor Intelligent Fingerprint-Based Localization: Principles, Approaches and Challenges. Security in Energy Harvesting Networks: A Survey of Current Solutions and Research Challenges. When Machine Learning Meets Privacy in 6G: A Survey. Security and Privacy Challenges in Connected Vehicular Cloud Computing. A Survey of Biological Building Blocks for Synthetic Molecular Communication Systems. A Survey on Adaptive 360° Video Streaming: Solutions, Challenges and Opportunities. Machine Learning Techniques for Optical Performance Monitoring and Modulation Format Identification: A Survey. Table of contents Editorial: Third Quarter 2020 IEEE Communications Surveys and Tutorials Thirty Years of Machine Learning: The Road to Pareto-Optimal Wireless Networks