Internet of Things. Technology and Applications [electronic resource] : 4th IFIP International Cross-Domain Conference, IFIPIoT 2021, Virtual Event, November 4–5, 2021, Revised Selected Papers /

Challenges in IoT Applications and Research -- Challenges in IoT Applications and Research -- Modernizing Agricultural Practice Using IoT -- sFarm: A Distributed Ledger based Remote Crop Monitoring System for Smart Farming -- Smart Agriculture using Flapping-Wing Micro Aerial Vehicles (FWMAVs) -- Smart Lysimeter with Crop and Environment Monitoring: Enhanced with Pest and Crop Control -- Cyber-physical IoT Systems in Wildfire Context -- Fuel break Monitoring with Sentinel-2 Imagery and GEDI validation -- A Study on Small Sensor Node Antenna Performance Camouflaged under Grassland Fire -- A Data Fusion of IoT Sensor Networks for Decision Support in Forest Fire Suppression -- Drones as Sound Sensors for Energy-Based Acoustic Tracking on Wildfire Environments -- IoT for Smart Health -- cStick: A Calm Stick for Fall Prediction, Detection and Control in the IoMT Framework -- Hardware/Software Co-Design of a Low-Power IoT Fall Detection Device -- Security -- ReOPUF: Relaxation Oscillator Physical Unclonable Function for Reliable Key Generation in IoT Security -- Cyber-Physical Application for the Safety and Security Enforcement in Oil & Gas Transportation -- A Secure and Efficient Cloud-Connected Body Sensor Network Platform -- Methods -- EasyDeep: An IoT Friendly Robust Detection Method for GAN Generated Deepfake Images in Social Media -- A Fuzzy Logic Approach for Self-Managing Energy Efficiency in IoT Nodes -- Hydric Resources and Metereological Monitoring IoT System - The Software Architecture.

This book constitutes the refereed post-conference proceedings of the Fourth IFIP International Cross-Domain Conference on Internet of Things, IFIPIoT 2021, held virtually in November 2021. The 15 full papers presented were carefully reviewed and selected from 33 submissions. Also included is a summary of two panel sessions held at the conference. The papers are organized in the following topical sections: challenges in IoT Applications and Research, Modernizing Agricultural Practice Using IoT, Cyber-physical IoT systems in Wildfire Context, IoT for Smart Health, Security, Methods.