Current Internet of Things Technology for Smart Cities

Smart cities signify urban spaces that use Artificial Intelligence (AI), Information and Communication Technology (ICT), and the Internet of Things (IoT) to create sustainable, efficient, and safe environments for residents. Smart cities integrate cloud computing, sensors, edge computing, and data science to enable real-time data exchange and enhance decision-making for city management. According to the International Data Corporation (IDC), global investment in smart city initiatives is projected to reach $135 billion by 2026 [1]. This projection is based on the increasing demand for innovative technologies to enhance urban living conditions, especially in the post-COVID-19 era. This article explores the latest impactful IoT technologies in smart cities, their applications across various sectors, and their existing challenges.