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The rapid implementation of Internet of Things (IoT) technologies in smart cities has increased the problems of energy efficiency, sustainability of devices, and environmental footprint. The current study presents scientmetric mapping research on energy-efficient communication protocols in the scope of IoT networks to demonstrate the development of topics, patterns of cooperation, and new trends. The 767 publications located in 441 sources and indexed in Scopus were analyzed using VOSviewer, CiteSpace, and Bibliometrix (2020–2025). This analysis helped identify the top contributors, most influential publications, and critical knowledge clusters. The findings indicate that the mean percentage of citations of papers and international co-authors is 16.48% and 36.11%, respectively, which means that collaboration is quite high in the global sustainability studies of the IoT. Thematic analysis identified five general research fronts: energy-conscious routing, AI-intelligent energy management, blockchain-based IoT security, edge/fog-based green computing, and eco-IoT architecture. Temporal trends imply a shift toward AI-oriented and sustainability-oriented systems tailored to optimize wireless sensor usage. This novel study provides a quantitative and evidence-based map of the area of knowledge and identifies areas that remain insufficiently researched, such as cross-layer protocol architecture and carbon-neutral IoT designs. The results guide upcoming research, policy formulation, and urban technology design on energy-efficient and sustainable smart city infrastructure systems in line with the objectives of global sustainability.

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Scientometric Mapping of Energy-Efficient IoT Communication Protocols for Sustainable Smart Cities

  • 会议论文

  • 发表日期：

    2026年

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  • Shyamala Guruswamy,
  • Praveen Pappula,
  • Bhavana Jamalpur,
  • D. Sushma Kumari

摘要

The rapid implementation of Internet of Things (IoT) technologies in smart cities has increased the problems of energy efficiency, sustainability of devices, and environmental footprint. The current study presents scientmetric mapping research on energy-efficient communication protocols in the scope of IoT networks to demonstrate the development of topics, patterns of cooperation, and new trends. The 767 publications located in 441 sources and indexed in Scopus were analyzed using VOSviewer, CiteSpace, and Bibliometrix (2020–2025). This analysis helped identify the top contributors, most influential publications, and critical knowledge clusters. The findings indicate that the mean percentage of citations of papers and international co-authors is 16.48% and 36.11%, respectively, which means that collaboration is quite high in the global sustainability studies of the IoT. Thematic analysis identified five general research fronts: energy-conscious routing, AI-intelligent energy management, blockchain-based IoT security, edge/fog-based green computing, and eco-IoT architecture. Temporal trends imply a shift toward AI-oriented and sustainability-oriented systems tailored to optimize wireless sensor usage. This novel study provides a quantitative and evidence-based map of the area of knowledge and identifies areas that remain insufficiently researched, such as cross-layer protocol architecture and carbon-neutral IoT designs. The results guide upcoming research, policy formulation, and urban technology design on energy-efficient and sustainable smart city infrastructure systems in line with the objectives of global sustainability.