SDN Controller History and Major Technologies

Technical overview of SDN controller evolution, architectures and deployment in large data centers, highlighting microservices as a design direction for scalable control.

What Is 5G Messaging and Why Promote It?

Technical overview of China’s 5G messaging policy and RCS: origins, IMS basis, MaaP enterprise use, device support, ecosystem challenges and deployment outlook.

Planar Reflectarray Antenna Co-simulated with MATLAB and HFSS

Single-layer windmill unit for reflectarray antenna achieving 473.6° linear phase range; 80×80 mm Ka-band prototype (400 elements) shows 27.86 dBi gain and 35.7% 3 dB bandwidth.

What Is an RRU and Key Performance Metrics

Overview of RRUs in cellular base stations: function, distributed BBU/RRU architecture, and key metrics: frequency bands, instantaneous bandwidth, port count, and power consumption.

Can Industrial Internet Platforms Connect to 5G?

Overview of 5G-enabled industrial internet platforms: high-speed, low-latency, massive IoT connectivity with device management, real-time data collection and analytics.

Graphene Applications in 5G Wireless Communications

Overview of graphene assembled film (GAF) for RF: fabrication, conductivity, flexible 5G antennas and superior EMI shielding across microwave–THz bands.

Resolving Fluxion Stall When Creating a 5 GHz AP

Configure the Linux kernel regulatory domain and adjust Fluxion's hostapd script to enable 5 GHz AP creation, deauthentication, and packet injection by setting the country code.

A-SEM: Additional Spectrum Emission Mask Test Requirements

Overview of A-SEM (Additional Spectrum Emission Mask) in 5G UE RF tests: NS signaling (e.g., NS_04), A-MPR mapping, measurement bandwidths and compliance checks.

AI Use Cases in Wireless Systems

AI in wireless systems: technical review of 5G use cases, ML-driven channel estimation and resource allocation, data-quality and testing best practices for telecom and automotive.

IoT Communication Protocols Overview

Comprehensive overview of IoT communication protocols across physical, network, and application layers, with comparisons and a focus on MQTT tradeoffs.