• MADDINENI VYSHNAVI
• KOYINANA.MEGHANA
• MADAKA MEGHANA

The Internet of Things (IoT) is a combination of sensor, embedded, computing, and communication technologies. The goal of the IoT is to give seamless services to anything, at any time, and in any location. IoT devices are everywhere, ushering in the fourth revolution of disruptive technologies following the internet and Information and Communication Technology (ICT). According to the research and development community, the impact of IoT on society will be greater than that of the internet and ICT, which promotes the well-being of society and industries. Addressing the prevalent system-level design characteristics such as energy efficiency, robustness, scalability, interoperability, and security challenges results in the utilization of a prospective IoT system. This article summarizes the current state of the art for the IoT functional pillars. Its growing applications aim to encourage academics and researchers to create real-time, energy-efficient, scalable, dependable, and secure IoT systems. This document outlines IoT architecture, as well as the current state of IoT architectures. Highlights of IoT system-level challenges have been highlighted in order to design more powerful real-time IoT applications. Millions of devices exchange data using many communication standards, and interoperability is a serious challenge. This study gives a detailed review of the current state of communication standards and application layer protocols utilized in IoT. Cloud, Cloudlet, Fog, and Edge computing paradigms enable IoT by providing services such as data offloading, resource and device management, and so on. An in-depth examination of Edge Computing in IoT using several edge computing designs is presented in this study.

IoT, pillars of IoT, emerging IoT applications, IoT application requirements, IoT architecture, IoT application layer protocols, computing paradigms (edge, fog, cloudlets & cloud), privacy & security, and platforms for IoT.

"AN EMPIRICAL STUDY ON SYSTEM-LEVEL ASPECTS OF THE INTERNET OF THINGS (IOT)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 12, page no.51-100, December-2023, Available :http://www.jetir.org/papers/JETIRGA06009.pdf

"AN EMPIRICAL STUDY ON SYSTEM-LEVEL ASPECTS OF THE INTERNET OF THINGS (IOT)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 12, page no. pp51-100, December-2023, Available at : http://www.jetir.org/papers/JETIRGA06009.pdf