Literature Review - IoT for SmartCities

As the world becomes increasingly urbanized, there is a growing need to address the challenges of urbanization. Smart cities offer a way to address these challenges by using technology to make cities more efficient, sustainable, and livable. However, since it is a recent  field of development, there is a lack of understanding of some concepts. Therefore, we performed a structured literature review of secondary studies to characterize Smart Cities regarding their features, applications, technologies, and challenges. The findings indicate the research opportunities in the field, focusing on designing Smart Cities solutions. This work provides a characterization of Smart Cities and outlines the issues that need to be addressed for them to be established.