Digital Twin-Driven Sustainable Cities Using 5G - 6G Ultra-Low Latency Networks

Rapid urbanization has placed immense pressure on city infrastructures, necessitating intelligent and sustainable solutions for efficient urban management. Digital Twin (DT) technology has emerged with powerful paradigm that enables real-time virtual representation of physical urban systems, facilitating data-driven decision-making and predictive analysis. However, the effectiveness of DT in smart cities largely depends on ultra-low latency, high reliability, and massive connectivity, which are enabled by next-generation communication technologies such as 5G and upcoming 6G networks. This paper proposes a Digital Twin-driven sustainable city framework integrated with 5G/6G ultra-low latency networks to enhance real-time monitoring, resource optimization, and urban sustainability. The proposed system leverages IoT sensors, edge computing, artificial intelligence, and high-speed wireless communication to synchronize physical and virtual city environments. Experimental evaluation demonstrates improved response time, reduced energy consumption, and enhanced service efficiency compared to traditional smart city architectures. The outcomes highlight the significant potential of Digital Twin technology combined with 5G/6G networks in achieving resilient, intelligent, and sustainable urban ecosystems.