Internet of Things (IoT) and 5G Network

The integration of the Internet of Things (IoT) with fifth-generation (5G) networks represents a transformative leap in digital connectivity, enabling ultra-low latency, high bandwidth, and massive device connectivity. This study examines the technical capabilities of 5G for large-scale IoT deployment, the benefits across key sectors such as healthcare, manufacturing, transportation, and smart cities, and the challenges relating to security, interoperability, cost, and regulatory alignment. Using a qualitative, literature-based approach, peer-reviewed and official technical sources (2019–2024) were thematically analyzed. Findings reveal that 5G’s ultra-reliable low-latency communication supports mission-critical applications like remote surgery and autonomous vehicles, while enhanced mobile broadband and massive machine-type communications enable high-volume, real-time data exchange. However, the expanded attack surface heightens risks of distributed denial-of-service attacks, data breaches, and device spoofing. Infrastructure investment and operational costs remain significant adoption barriers, particularly in developing economies. The study recommends strengthening AI-driven cybersecurity, adopting blockchain-based trust frameworks, harmonizing international standards, and promoting sustainable deployment models through public–private partnerships. The insights contribute to guiding stakeholders toward secure, scalable, and economically viable IoT–5G ecosystems capable of advancing digital transformation and inclusive growth.