Designing Secure and Energy-Efficient Protocols for Large-Scale Heterogeneous IoT Networks in Smart Cities

Abstract

The growing deployment of Internet of Things (IoT) infrastructures in smart cities introduces unprecedented challenges in terms of scalability, heterogeneity, energy efficiency, and cybersecurity. Ensuring sustainable operations of large-scale heterogeneous IoT networks requires robust protocols that balance energy consumption with security imperatives. This paper proposes an analytical framework for designing secure and energy-efficient communication protocols suitable for smart city applications. Through a systematic review of state-of-the-art mechanisms and comparative performance analysis, we highlight the trade-offs, existing limitations, and future directions for intelligent protocol engineering in urban IoT ecosystems.