Volume 17 (2021) Guest Editorial: Smart Systems and Architectures/Editorial Effect of Epidemic Interference on the Performance of M-ASK, M-PSK and M-QAM Modulation Schemes/Open Call Articles Comparative Study of the Execution Time of Parallel Heat Equation on CPU and GPU/Open Call Articles Application of Constructive Modeling and Process Mining Approaches to the Study of Source Code Development in Software Engineering Courses/Open Call Articles Semantic Detection of Targeted Attacks Using DOC2VEC Embedding/Open Call Articles PAPR Reduction Method based on In-phase/Quadrature Data Symbol Components in MIMO-OFDM Systems/Open Call Articles A Low Complexity Optimal LMMSE Channel Estimator for OFDM System/Open Call Articles Constraint-based Recommender System for Commodity Realization/Open Call Articles Unified Performance Analysis of Near and Far User in Downlink NOMA System over η - μ Fading Channel/Open Call Articles Coexisting Parallelogram Method to Handle Jump Point on Hough Transform-based Clock Skew Measurement/Open Call Articles Advances in Clickbait and Fake News Detection Using New Language-independent Strategies/Open Call Articles Assuring M2M Secure Transactions via Blockchain and Smart Contracts/Open Call Articles Utilization of Compressed Sampling for PAPR Reduction in OFDM IEEE-802.11a System/Open Call Articles A Design of Telemetry System for Small Animals/Open Call Articles Wireless Three-hop Relay Environment with Line-of-Sight: Investigation and Performance Analysis/Open Call Articles Pegasis Double Cluster Head Hybrid Congestion Control in Wireless Sensor Networks/Open Call Articles Towards Trust Model in Unmanned Aerial Vehicle Ad Hoc Networks/Open Call Articles Is Cloud RAN a Feasible Option for Industrial Communication Network?/Open Call Articles HW/SW Architecture Exploration for an Efficient Implementation of the Secure Hash Algorithm SHA-256/Open Call Articles Investigating Mobility-aware Strategies for IoT Services Placement in the Fog under Energy and QoS Constraints/Open Call Articles Outage and Rate Evaluation of Drone based Decode and Forward Cooperation for Hybrid Fading Channels/Open Call Articles IEGGR: Improved Energy-aware and Delivery Guarantee Geographic Routing/Open Call Articles Efficient Behavior Prediction Based on User Events/Open Call Articles The Effect of Latent Space Dimension on the Quality of Synthesized Human Face Images/Open Call Articles Microstrip Patch Antenna Miniaturization Using Magneto-Dielectric Substrates for Electromagnetic Energy Harvesting/Open Call Articles Performance Study of a Class of Irregular Near Capacity Achieving LDPC Codes/Open Call Articles Energy Efficient Two-hop D2D Communications Underlay 5G Networks: A Stackelberg Game Approach/Open Call Articles Limiting Performance of Millimeter-Wave Communications in the Presence of a 3D Random Waypoint Mobility Model/Open Call Articles 3D Target Localization by Using Particle Filter with Passive Radar Having one Non-cooperative Transmitter and one Receiver/Open Call Articles Analysis of Patterns and Similarities in Service Tickets using Natural Language Processing/Open Call Articles Software Evolution Understanding: Automatic Extraction of Software Identifiers Map for Object-Oriented Software Systems/Open Call Articles Performance Analysis of Compressive Sensing based LS and MMSE Channel Estimation Algorithm/Open Call Articles Detection and Prevention of Blackhole Attack in the AOMDV Routing Protocol/Open Call Articles IoT LoRa-Based Energy Management Information System with RAD Method and Laravel Frameworks/Special Issue on Smart Systems and Architectures Cluster Based Distributed Service Discovery in Internet of Vehicle/Special Issue on Smart Systems and Architectures Optimized Method for Locating the Source of Voltage Sags/Special Issue on Smart Systems and Architectures Demand Forecasting Tool For Inventory Control Smart Systems/Special Issue on Smart Systems and Architectures Fast-prototyping Approach to Design and Validate Architectures for Smart Home/Special Issue on Smart Systems and Architectures Early Detection of External Neurological Symptoms through a Wearable Smart-Glasses Prototype/Special Issue on Smart Systems and Architectures Observation of Enhanced Network Performance in IoT Process Control and Data Sensing with RINA/Special Issue on Smart Systems and Architectures A Deep Learning Approach for Real-Time Analysis of Attendees’ Engagement in Public Events/Special Issue on Smart Systems and Architectures