Authors : Rajesh Kumar K.; Mahimuda Sumaya Begam; V. Nandini; G. Sai Charan; Mohammed Muaaz Basha; Savasi Harini; Yallamelli Sumalatha; B. Divya

Volume/Issue : Volume 11 - 2026, Issue 3 - March

Google Scholar : https://tinyurl.com/mu4wsup6

Scribd : https://tinyurl.com/wdwy54z6

DOI : https://doi.org/10.38124/ijisrt/26mar1824

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : The increasing adoption of Internet of Things (IoT) technologies has enabled intelligent interaction between digital systems and physical entities; however, most existing IoT solutions rely heavily on cloud-based infrastructures, which introduce challenges such as increased latency, continuous internet dependency, higher operational costs, and potential data privacy risks. The objective of this work is to design and implement a smart-device based local network architecture for controlling IoT physical entities efficiently without cloud dependency, thereby enhancing system responsiveness, reliability, and security. The novelty of the proposed approach lies in utilizing a commonly available smart device, such as a smartphone or tablet, as the central controller and user interface within a localized network, enabling direct communication with IoT nodes through lightweight local communication protocols. This architecture minimizes latency and ensures data privacy by confining all control and monitoring operations within the local network. The methodology involves establishing a local area network in which embedded IoT nodes comprising sensors and actuators are interconnected via a microcontroller platform, while the smart device communicates with these nodes to perform device discovery, command execution, and real-time monitoring. The system is implemented using standard networking protocols and tested under various operating conditions to evaluate parameters such as response time, reliability, scalability, and control accuracy. Experimental results demonstrate that the proposed local network–based IoT control system significantly outperforms conventional cloud-based solutions in terms of latency reduction and operational reliability. The findings also indicate improved system robustness during internet outages and enhanced security due to localized data handling. Furthermore, the system proves to be cost-effective, scalable, and easy to deploy, making it suitable for applications in smart homes, academic laboratories, healthcare environments, and small-scale industrial automation. Overall, this study confirms that controlling IoT physical entities using a smart device over a local network is a practical and efficient alternative to cloud-centric IoT architectures, offering improved performance, user autonomy, and data security while maintaining flexibility and ease of integration.

Keywords : Internet of Things (IoT), Smart Device–Based Control, Local Area Network (LAN), Cloud-Independent Architecture, Real-Time Monitoring and Control.

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