Lalitpur, Nepal

Dr. Babu R. Dawadi, faculty member of the Department of Electronics and Computer Engineering, Institute of Engineering (IOE), Tribhuvan University, together with his research collaborator Grishan Pradhan (MSc Graduates), has published a high-impact research article in the internationally renowned Discover Networks, a peer-reviewed journal published by Springer Nature.

The research paper, entitled "Evaluation of Integrated Framework for Terrestrial–LEO 5G Networks with New Radio Dual Connectivity," presents an innovative networking framework that integrates conventional terrestrial 5G infrastructure with Low Earth Orbit (LEO) satellite networks to enhance next-generation wireless communications.

As the world moves toward Beyond 5G (B5G) and 6G technologies, extending reliable high-speed Internet to remote, mountainous, and disaster-affected regions remains one of the greatest technological challenges. Addressing this global issue, the research introduces a novel New Radio Dual Connectivity (NR-DC) architecture that allows mobile devices to communicate simultaneously through terrestrial 5G base stations and rapidly moving LEO satellites.

Using a customized simulation platform developed by the research team, the study demonstrates that the proposed architecture substantially enhances network performance. Experimental results show that the integrated framework increases downlink data throughput by more than 321% compared with satellite-only networks and by nearly 29% compared with conventional terrestrial-only 5G deployments, while simultaneously reducing communication delay by over 70% in several scenarios. These findings highlight the potential of integrated terrestrial–satellite communications to provide seamless and resilient broadband connectivity for future wireless systems.

The publication represents an important contribution to international research on 5G, Beyond 5G (B5G), 6G, satellite communications, and next-generation mobile networking. The work also advances research on mobility management, multi-connectivity, and resilient communication architectures for future global Internet services.

Dr. Dawadi stated that such integrated communication technologies have significant potential for countries like Nepal, where challenging geography often limits the deployment of conventional terrestrial communication infrastructure. The integration of terrestrial and satellite networks can play a vital role in delivering reliable broadband connectivity to remote Himalayan communities, supporting disaster-resilient communications, expanding digital inclusion, and strengthening future national communication infrastructure.

The publication further reinforces the growing international research contributions of the Institute of Engineering, Tribhuvan University, in advanced communication networks and cybersecurity research. It demonstrates the institution's commitment to producing globally recognized research addressing real-world technological challenges and contributing to the development of future wireless communication systems.

Link to access the article: https://doi.org/10.1007/s44354-026-00039-w

(Dr. Dawadi received the research funding supports from Tribhuvan University Research Directorate under his research grant title: Latest Generation Intelligent Network Design, Deployment and Security Prospects Analysis in the Context of Nepal (LISPAN). This research was supported by the TU Research Directorate Major Research Grants under National Priority Area Research Grant (ID: TU-NPAR-081/82-MRG-01) and NAST Small Research Grant (ID: NRG-081/82-Engg-04) principally investigated by Dr. Babu R. Dawadi.)